These rules supersede all previous editions and addenda and shall remain in effect until an amended edition of the rules is published. The 2007 Rulebook is the base rulebook although years of change are notes on specific rules. All changes for 2008 will be designated in red. All changes for 2009 will be designated in green. All changes for 2010 will be designated in purple. The general changes due to the name change of the IWWF from the IWSF will remain in black.
These rules have been drafted in English. In the case of conflicting interpretation, only the English text shall be considered authentic. All correspondence regarding these rules should be addressed to the Chairman of the Tournament Council: Mr. Robert K. Corson, 23 Fox Hollow Road, Voorhees, New Jersey 08043, U.S.A.

email: bcorson@comcast.net

Rule 1 - GENERAL

1.01: Applicability of the Rules

The rules set forth here govern tournaments sanctioned by the International Water Ski Federation. With the exception of entry requirements and other administrative matters, the Regions must follow these rules for their sanctioned tournaments. It is requested that Federations establish rules as close to these rules as possible. Whenever the masculine is used, the same shall be construed as meaning the feminine where the context so requires.

1.02: World Championships Dates (2007)

The World Championships shall be held biennially in odd numbered years.
The World Junior Tournament Championship shall be held biennially in even numbered years.
The World Under21 Tournament Championship shall be held biennially in odd numbered years.
The World Senior Trophy shall be held biennially in event numbered years.

1.03: Exceptions to the Rules

Where compliance with the rules is not feasible, the Chief Judge shall, with the approval of the majority of the Appointed Judges, make the necessary changes, inform each contestant by posting, and send a report to the Tournament Council. Where the rules are definite and feasible, a vote of the Judges to decide whether to enforce any provision is prohibited.

1.04: Interpretation of the Rules

Questions of interpretation of the rules shall be referred to the Tournament Council when possible. Any interpretation made by the Tournament Council as a whole shall be considered final. Otherwise the interpretation shall be made by a majority vote of the Appointed Judges, and the Chief Judge shall make a report to the Tournament Council concerning the question.

1.05: Amendments to the Rules (2004)

Amendments made prior to the biennial revision of the rules must be approved by a two-thirds (2/3) majority of the members of the Tournament Council. The rules may be amended at any time by the Tournament Council. The amended rules shall become effective sixty (60) days after they are sent to each affiliated Federation except in the case of new tricks submitted prior to September 30, which may be added by simple majority, and become effective immediately on November 1. All new tricks submitted must include a video showing the trick. Until such time as a new biennial edition of the rules is published, the current rules, as amended by the Tournament Council, remain in effect. A unanimous decision of the members of the Tournament Council is immediately applicable.

Under the authority of the Tournament Council Chairman, proposed rules may be tested. The Chairman shall determine the appropriate homologation level under the test conditions. A complete report of the results of the test will be made by the Homologator and Chief Judge and sent to the Chairman for distribution to the Tournament Council.

1.06: Effectivity of the World Championships (2007)

The inability for one reason or another of a country to attend any World Tournament (including political reasons) does not require that the entire competition be canceled or postponed or that the titles are any less world titles.

1.07: Voting of the Judges

Unless otherwise specifically stated, every vote of the Appointed Judges or the Event Judges shall be decided by a simple majority of the judges voting. In the event of a tie, the Chief Judge shall cast the tie-breaking vote. All issues should be settled before the next contestant starts.

1.08: Identifying Bibs(2004)(2009)

It may be required that skiers must wear identifying bibs while skiing. The bibs must be of a design approved by the Chairman of the IWSF Tournament Council. The central feature of the bib will be an identifying number on both the front and back of the bib. The individual digits of the number must be a minimum of 15 cm in height and be clearly visible from a distance. The design must allow for use of an arm sling in jumping and also be snug so that it does not interfere with the free movement required in tricks. The bibs will be given to each team captain before the competition for distribution to his team. Spare bibs, with no numbers, should be available at the starting dock in case a skier's bib is damaged and unusable. Skiers must each wear the bib with the number assigned to them only. A Refusal by the skier to wear the bib will result in disqualification from that event. However, accidental leaving off the bib not noticed in advance by anyone will incur a fine of US$250 payable to the event organiser.

1.09: Drug Testing (2004)

All competitors must agree to be subject to doping control. Specific policies and procedures regarding doping control shall be under the control of the Medical Commission of the International Water Ski Federation.

1.10: Unsportsmanlike Conduct

Any contestant (or his representative) or official whose conduct is deemed unsportsmanlike or whose conduct may cause discredit to the IWSF, either on or off the tournament site, before during, or after the tournament, may be disqualified from all or part of the tournament including completed events and/or be subject to a fine to be determined by the IWSF Executive Board, by a two-thirds majority vote of the Appointed Judges. The affected individual will be given an opportunity to present his case before a disqualification decision is made. In the case of a finding of unsportsmanlike conduct, a report must be submitted by the Chief Judge to the Chairman of the IWSF Tournament Council. If the Executive Board assesses a fine, it will be paid by the skier's Federation.

1.11: Tolerances

All tolerances are to allow for human error and the intentional use of tolerances by tournament officials to improve skier performance will not be tolerated. In any activity involving the performance of an official where a tolerance is involved, it is the official's responsibility to attempt to be as close as possible to the actual specification.

1.12: World Championship Site Practice Guidance (2007)

As a guidance for Organizers - If practice is to be offered at a cost to teams then a deadline date (latest 60 days before the scheduled start) should be set by which time all requests must be submitted. After this deadline practice times should be allocated to ensure all countries have an equal opportunity according to their request.

Rule 2 - TOURNAMENT EVENTS

2.01: Events

The events in a tournament are jumping, slalom, and tricks, with a champion and succeeding places determined in each event. A champion and succeeding places shall also be determined for the Overall and for the National teams as described in Rule 5.

2.02: Rounds

Each event shall consist of two rounds; a preliminary round and a final round.

All skiers qualified to ski in an event must ski in the preliminary round of that event.

A skier must score (more than 0) in the preliminary round to qualify for the final.

Basic Rule (2003)

The first twelve placed skiers based on the results of the preliminary round, shall be qualified to ski in the final round of that event. There shall be no differentation between individual skiers and team skiers.

Ties

In the case of a tie for any position which may result in more than twelve skiers going through to the final round there will be a run off between the tied skiers so that only twelve skiers go into the finals.

For all IWSF World Championships except the Open World Championships, the number of skiers qualified to ski in the Final round of an event shall be as shown in the following table and will be announced immediately after the end of the Preliminary round of the event:

Number of skiers started in Preliminary round	Number of skiers in Finals
1 - 5	All
6 - 10	first 5
11 - 12	first 6
13 - 15	first 8
16 - 19	first 10
20 and more	first 12

(2006)

2.03: Schedule of Events

Not later than two months before the start of the tournament, the Tournament Chairman shall send to each affiliated Federation, by air mail, a schedule showing the days on which the tournament events will be held. The schedule of events for both the preliminary and final rounds shall be drawn up by the Chief Judge, the Chairman of the Tournament Council and the Tournament Chairman and posted prior to the start of the first event. This list shall include starting time for each day. A schedule of starting times for individual events, if shown, shall be for the guidance of the contestants only, and any deviation shall not constitute a change. It is recommended that jumping be scheduled as the last event in both the preliminary and final rounds.

2.04: Schedule Changes

Changes in the schedule during the tournament shall be made only for weather, water conditions, safety, or a similar reason. A majority of the Appointed Judges must approve the change, and all affected contestants shall be notified by posting. Although schedule changes are to be discouraged, the Judges should not hesitate to make adjustments required for safety. Once the tournament has started, the Judges do not have the authority to cancel any event, except in the case of a definite safety hazard; and, if possible, the tournament must be completed, even if the Judges are obliged to continue it in a neighboring community.

If by a 2/3 majority decision, the appointed judges decide it is impossible to complete the final round of one or more events in either division only the overall points from the preliminary round of all the events in that division will be used for overall placement and team scoring. In this case if an event final cannot be completed, placement in that event shall be based on the preliminary round results.

2.05: World Championships Entry and Administration (2009)

Each Federation shall certify to the Chairman of the Tournament Council and to the organizing committee, not later than 60 days before the scheduled start of the first event of the World Championships, its intent to compete. Any Federation not meeting this requirement will not be allowed to compete until they pay a fine of 200 US Dollars to the IWSF. Each Federation shall certify to the Chairman of the IWSF Tournament Council, the Chairman of the Region Tournament Council, and the organizing committee, not later than ten (10) days before the scheduled start of the first event of the World Championships, the names of the members of its team, the events each will enter, the ratings of each skier, as well as the names of the official reserves. Any Federation not meeting this requirement will not be allowed to compete until the Federation pays a fine of ten (10) US Dollars per skier per day after the 10-day deadline to the IWSF for each skier not officially entered. If the official entry forms are not received prior to the 24 hours before the start of the first event, the Federation's skier's places in the draw shall be determined by the Chief Judge without reference to their qualifying scores. (2009)

There is no limit on official reserves per team.

(2010) The day before the start of a preliminary round the entry list shall be closed and thereafter the order of contestants will be finalized and posted. No change in this order is allowed except that a team representative may:

- Withdraw a skier from the competition.

- Replace, with the authority of the Chief Judge and before the start of the first event, that is to say before the first skier taking part in the first event has started, an injured skier by a qualified official reserve from the same team.

- The substitute skier shall start first in the seed in which he is qualified unless the draw has not yet been completed.

The competitors will be drawn in the following manner:

- The most recently published World Ranking List will be used to make a general classification list of all the skiers entered in the World Championships. Skiers with no performances on this list will be subject to a random draw in the lowest series. (2009)

(2010) If a skier is not on the current list, but is on the previous year’s list, that number will be used with a 25% penalty. The procedure will be as follows: All skiers on this year’s list will be seeded and the seed groups set. If a skier has a seed number from the previous year of, for example 40, that number +25% or 50 in the example will be used to decide what seed group the skier will ski in. That skier will be added to that seed group as the first skier on the water from that group.

(2010) An overall skier may have an overall ranking, but not be on the event list. In this case the performance level will be used to pick the seed number. If it is from the previous year the same 25% penalty shall apply. This will determine the seed group. That skier will be added to that seed group as the first skier on the water from that group.

- The skiers will then be divided into groups and the start list will be made using reverse order of the ranking list scores. The group size will normally be 15 men and 10 women but may be changed before the start of the tournament by the Chief Judge. (Cf., however, 13.01 for jumping order in the men's event). It is recommended that Series 1 and 2 for women and Series 1, 2 and 3 for men be scheduled so that these skiers will have similar conditions.(2009)

It is anticipated that for the 2009 World Championships in Calgary that the seed group size will be 10. (2009)

The Event Judges may reverse or change the starting order of these groups according to the prevailing conditions.

The order of the skiers qualified for the final round in any event shall be the reverse of their order of placement in the preliminary round of that event.

The order of contestants tied in placement shall be settled by random draw.

Any contestant who fails to be on hand and ready to ski when the boat is prepared to start shall be disqualified from the remainder of the event; however, the dock official may grant up to one additional minute of time for emergencies developing or discovered just prior to the contestant's turn to ski (e.g. ripped binding).

In the case where a skier has been disqualified or has scratched, a one-minute delay shall be granted to the next skier in the starting order if he was not on the starting dock at the time of disqualification. If more than one skier has been disqualified or has scratched, the time allotted to the next skier shall be one minute for each skier disqualified or scratched.

2.06: Control of the site

Once homologation starts, use of the site is under the authority of the Chief Judge until the completion of the tournament.

2.07: Site Selection for the World Championships

As a basic principle, there should be only one site chosen for the running of the events. A second site should not be used unless absolutely necessary.

Rule 3 DIVISIONS OF COMPETITION

3.01: Divisions

Competition in each event shall be separated into a Men's and a Women's division. There shall be no age limitations on entrants.

Rule 4 - TOURNAMENT ENTRY REQUIREMENTS

4.01: Team Selection (2009)

Each Federation which is affiliated with the IWSF shall have the right to select a team of skiers to represent their Federation in the World Championships. The team shall consist of a maximum of six skiers, with the further limitation that no team may have more than four men or four women.

Skiers not selected for their national teams may qualify to compete in the World Championships as individuals only in the relevant event(s) if they meet one or more of the following criteria:

World record holder. The performance must have been ratified by the Tournament Council and the President of the IWSF 30 days before the first day of the World Championships.
(2005) (2007)(2009) Top 6 of the previous year's World Cup placements
(2005) (2007)(2009) The following placements on the current year's May IWSF Ranking List

Mens Slalom 20
Womens Slalom 15
Mens Jump 20
Womens Jump 15
Mens Tricks 20
Womens Tricks 15
Top 10 in overall, Men and Women

(2005) (2007)(2009) (2010) The following placements on the previous year's May IWSF Ranking List

Mens Slalom 16
Womens Slalom 12
Mens Jump 16
Womens Jump 12
Mens Tricks 16
Womens Tricks 12
Top 8 in overall, Men and Women

(2005)(2007)(2009) The following placements on the Elite Ranking List 30 days before the World Championships.

Mens Slalom 14
Womens Slalom 10
Mens Jump 12
Womens Jump 8
Mens Tricks 8
Womens Tricks 8

(2005)(2007)(2009) (2010) The following placements on the Elite Ranking List one year and 30 days before the World Championships.

Mens Slalom 11
Womens Slalom 8
Mens Jump 9
Womens Jump 6
Mens Tricks 6
Womens Tricks 6

Reigning World Champion in any event or the overall from the previously held World Championships.

All skiers qualified as individuals must be entered by their Federation.

Skiers entering as individuals shall not have their scores count toward team standings.

The Rankings List used shall be the most recently published list.

4.02: Skier Eligibility

A Federation may select its team in any manner it desires; however, each team member must be a citizen or applying for citizenship of the country which the Federation represents. In case of doubt as to the nationality of a competitor, the Judges normally will refer to his passport. If a skier does not have a passport from the country for which he is skiing, he must prove residence in the country for at least five years and membership in an affiliated club of the Federation. Each Federation shall certify to the Judges that all members of its team meet these qualifications.

4.03: Two Event Qualification

Each skier entering at least two events (except those competing under Rule 4.07) shall have in his possession a rating card showing the following skiing classification in each event which he enters:

	Tricks	Slalom	Jumping
Men	4000 Points	6@16m & 4@14.25m (58 km/h)	43m
Women	3200 Points	6@16m & 4@14.25m (55 km/h)	31m

4.04: One Event Qualification

Each skier entering only one event (except those competing under Rule 4.07) shall have in his possession a rating card showing the following skiing classification in the event which he enters:

	Tricks	Slalom	Jumping
Men	5500 Points	6 @ 13m (58 km/h)	49m
Women	4000 Points	6 @ 13m (55 km/h)	34m

4.05: Rating Effectivity

Rating cards shall be certified under the responsibility of the Chairman of the Tournament Council of the Region, or his designated representative, based on performance in tournaments sanctioned by the IWSF, a Region, or an affiliated Federation. If the ratings are more than one year old, the Chairman of the Tournament Council of the Region must satisfy himself that the skier is still qualified. Rating cards so certified shall be accepted by the Judges without further examination.

4.06: Three Event Qualification

If a skier is qualified under 4.03 to compete in two events, he shall be allowed to compete in the third event if he possesses a valid rating card showing the following skiing classification in the third event.

	Tricks	Slalom	Jumping
Men	3000 Points	6 @ 18.25m (58 km/h)	36m
Women	2300 Points	6 @ 18.25M (55 km/h)	25m

4.07: Minimum Team Qualification (2003)

Each Federation shall be entitled to a team of three competitors, male or female, whether qualified under rules 4.03 and 4.04 or not. Such a skier who is qualified in only one event or not qualified in any event may compete in only two events. In addition, the Federation organizing the World Championships shall be entitled to a team of six competitors, whether qualified or not.

Rule 5 - OVERALL AND TEAM COMPETITION

5.01: Qualification for Individual Overall Scoring (2007)

To qualify for an overall score, a competitor must score at least 20 points in tricks, 1/4 buoy in slalom and have one scoring jump.

5.02: Round Selection for Overall Score (2007)

Individual overall results shall be calculated on the better score of either the preliminary or the final round for each skier qualified for the individual overall. Scores obtained in running off a tie shall not counted towards overall.

5.03: Individual Overall Scoring Method (2007)

Each overall competitor shall be awarded in each event a certain number of overall points according to the relationship of his best score in either the preliminary round or the final round to the best score in the event during either round by a skier who is qualified as an overall skier.

The best performance in an event in either round by an overall skier shall be awarded 1000 points and be referred to as the “Best overall skiers score”. All other performances shall be calculated according to the following formulae:

For Tricks (skiers best event score x 1000) / Best Overall Skiers score

For Slalom (skiers best event score x 1000) / Best Overall Skiers score

For jumping the formula is different for men and women:

Men: ((skiers best event score minus 25m) x 1000) / (Best Overall Skiers score minus 25m)

Women : ((skiers best event score minus 17m) x 1000) / (Best Overall Skiers score minus 17m)

A skiers overall score in jumping shall not be reduced below zero.

5.04: Overall Placement (2007)

Individual Overall placement is based only on better score of either the preliminary or the final round. (2007)

5.05: Team Scoring (2007)

In team competition, the best three Team scores, men or women, in each event (in the eliminations or finals) shall be summed up to obtain the team score.

The best performance in an event in the preliminary or final round by a team skier shall be awarded 1000 points and be referred to as the "Best Team Score". All other performances shall be calculated according to the formulae in 5.03 substituting "Best Team Skier's Score" for "Best Overall Skier's Score".

The performance by a skier who is not an official member of his Federation's team shall not be taken into consideration in the calculation of the team score.

Team scores are separate and distinct from Individual overall scores.

5.06: Overall Finals (deleted 2007)

Rule 6 - JUDGES AND ASSISTANTS

6.01: Chief Judge - Appointed Officials. (2007)

At least six (6) months prior to the start of the World Tournament, the President of the IWSF shall appoint the Chief Judge for the World Tournament from among the Chief Judges proposed by each Region Tournament Council.

The President of the IWSF shall appoint for the World Tournament the Homologator, the Chief Calculator, and the assistant to the Chief Judge from among the officials proposed by each Region Tournament Council.

The Appointed Judges shall be selected by each Regional Council. All appointed judges must be qualified in all three events. (2006)

The appointment of the assistant to the Chief Judge must be made with the Chief Judge's approval.

The President of the World Tournament Council shall appoint a Chief Boat Driver and 2 to 3 additional boat drivers from among those proposed by each Region Tournament Council.

A maximum of two boat drivers may be from the country organizing the Tournament.

Assignment of the drivers to individual events shall be made by the Chief Boat Driver.

The Chief Judge shall supervise all judging and scoring operations and shall select the Judges and the assistants for each event. (For the choice of the Jury for each event, refer to articles 13.09, 14.13, 15.11).

The Chief Judge, who must not serve as an Event Judge, shall assign to his assistant those duties he deems appropriate.

Appointed Officials

Official	Nominated by	Appointed by	Timeframe
Chief Judge	Confederation Councils	IWSF President	6 months before start
Assistant Chief Judge	Confederation Councils	IWSF President	6 months before start
Homologator	Confederation Councils	IWSF President	6 months before start
Chief Scorer	Confederation Councils	IWSF President	6 months before start
2 Assistant Scorers	Confederation Councils	IWSF WTC Chairman	6 months before start
3 Judges from PANAM	Confederation Council	PANAM Council	6 months before start
3 Judges from EAME	Confederation Council	EAME Council	6 months before start
3 Judges from AA	Confederation Council	AA Council	6 months before start
1 Additional Judge	Confederation Councils	IWSF WTC Chairman	6 months before start
Chief Driver	Confederation Councils	IWSF WTC Chairman	6 months before start
2 – 3 Drivers	Confederation Councils	IWSF WTC Chairman	6 months before start

6.02: Choosing Appointed Judges

The Judges chosen for the World Tournament must represent the Regions as follows:

Region I - 3 Judges minimum

Region II - 3 Judges minimum

Region III - 3 Judges minimum

A total of 10 judges shall be selected.

Each region will nominate a person for the 10th judge to be selected by the Chairman.

The Chief Judge and his assistant are not included in the above number.

If a Region is unable to propose the specified number of qualified Judges, the IWSF Tournament Council can appoint additional Judges from other Regions.

If two events are to be run at the same time on different sites, the IWSF Tournament Council must appoint 3 extra Judges.

(2001) Any additional judges recruited during an event to assist become event judges only. They are not appointed judges.

6.03: Event Judges

For the World Championships, the Event Judges must be chosen by the Chief Judge from among the Appointed Judges, preferably as follows:

For Slalom - no more than two judges from any one Region.

For Tricks - the best panel appropriate for the level of trick performances

For Jumping - one Judge per Region.

At other tournaments, the selection to the event judges shall be governed by Region administrative practice.

6.04: Score Sheet Availability

The scoring sheets of each judge for every skier shall be made available for a period of 30 minutes for inspection by the team captain as soon as the provisional results are posted. Under the team captain's responsibility, a skier may view his own scoring sheets.

If a skier's score sheet is changed based upon this review, the changed sheet will be available for inspection for a period of 15 minutes after the revised results are posted assuming that this would not be less that the initial 30 minute limit. Each time a sheet is changed, it will be available for another 15 minutes for review.

If specific results are asked to be reviewed by the officials by the team captain, a notice shall be posted to the effect that some scores are under review and naming which skiers. This can be done by marking the posted results or by separate notice. (2002)

(2003) For tricks, judges using shorthand other than the official codes shall have a sample of their shorthand posted showing their mark for each of the official codes per the table in the rulebook.

6.05: Placement of Judges

Where practical, Judges shall be separated to ensure completely independent opinions.

6.06: Judges' Statement

The Chief Judge and each Appointed Judge shall sign a statement on the prescribed form at the conclusion of the tournament that the Rules were followed implicitly, noting any exceptions allowed.

6.07: Secondary Positions (2008)

Personnel to fill secondary positions shall be selected by the Chief Judge from among other experienced Judges and Officials in attendance. Wherever possible, Officials filling complementary positions (for example, boat driver and boat timer, top and bottom meter readers, etc.) should be of different nationalities. ~~Boat Judges in Tricks should be chosen from among the Appointed Judges or from other first-class Judges in attendance.~~

6.08: Official Uniforms

It is recommended that officials wear standard uniforms consisting of a white polo shirt and navy blue shorts. If heavier clothing is required due to the weather, the same color scheme shall be maintained of a plain white top and navy blue slacks/pants.

Rule 7 - SAFETY

7.01: Safety Director

At least two months before the tournament, the organizing Region Tournament Council shall appoint a Safety Director, who will appoint such assistants as appear necessary and inform the IWSF President and the IWSF Tournament Council Chairman. The Safety Director shall be responsible for the safe conditions of all equipment, facilities and operation of the tournament; but this shall not prevent him from delegating specific responsibilities to his assistants as approved by the Chief Judge. He shall have the authority to take whatever action is necessary, including stopping the tournament, whenever he observes a condition he believes unsafe. The Chief Judge may overrule any contemplated action or decision of the Safety Director on his own responsibility.

7.02: Safety Tournament Stoppages

Should the Safety Director stop a tournament for any reason, disqualification time periods (2.05, 13.01, 14.01, 15.08) shall not run as long as the tournament is stopped. The Safety Director should remain near the competition area as much as possible.

7.03: Personal Floatation Device (PFD)

(2001)

It is the responsibility of each skier to ensure their PFD meets the following specifications:

a) It must be smooth and soft and free from attachments or material likely to cause injury in a fall.

b) It must be constructed and fastened in such a manner that it is unlikely to be torn loose or damaged so as to render it useless in a hard fall.

c) It must float the skier.

d) It must not be an inflatable device.

e) It must be constructed so as to provide adequate protection from impact damage to the ribs and internal organs. A normal wet suit shall not be considered adequate protection in this respect.

(2001)
A PFD must be worn in slalom and jump but is at the skier's option in tricks.

7.04: Equipment Safety

The Safety Director shall determine whether equipment to be used by a contestant meets safety specifications.

7.05: Unsafe Skier Disqualification

No skier shall be allowed to compete or to continue to compete if, in the opinion of the Safety Director and a majority of the Event Judges, his competing would be a danger to himself or other skiers in the tournament. During the competition, the Safety Director may, at any time, request the Chief Judge to halt the tournament for a poll of the Event Judges in regard to a skier's actions or conditions. Whenever practical, the advice of a doctor should be obtained.

7.06: Safety Boats

Two safety boats shall be used during all events.

The suggested positioning is:

a) Slalom Events - operating outside of course between No. 2 and No. 5 skier buoys.

b) Jumping Events - operating opposite side of ramp, out-side of jump course buoys facing skier's anticipated point of landing.

c) Trick Events - operating outside of course buoys facing skier during pass.

At certain sites, where it is practical and feasible, with the approval of the Safety Director, and per the IWSF Safety Manual, rescue teams may operate from shore.

7.07: Safety Boat Personnel

Each safety boat will be manned by:

1. An experienced driver who is familiar with the conduct of all practice and tournament events.

2. A swimmer, also familiar with all practice and tournament events as well as being fully trained in First Aid, Emergency Resuscitation and Water Rescue Techniques.

The swimmer will wear a life jacket at all times and, in the event of a serious fall, will jump into the water to assist the skier. If the injured skier is unable to climb into the safety boat with little or no assistance, the skier will be floated to shore and lifted from the water on a suitable board or stretcher. Under no circumstances will an injured skier be lifted passively over the side of the safety boat. It is emphasized that, in international competition, language difficulties may interfere with communication; and, for this reason, the swimmer MUST GET IN THE WATER to assist the injured skier.

7.08: On Site Medical Facilities

The Safety Director will appoint a Tournament Medical Officer who will undertake to provide the following services:

1) A suitably qualified medical officer will be in attendance during all tournament events.

2) A suitably equipped medical station prepared to deal with any sort of medical emergency will be conveniently located at the tournament site.

3) Suitable transportation facilities that will allow an injured skier to be moved safely and promptly to the best local medical unit for further care.

4) A working relationship will be established between the local hospital or medical unit and the Tournament Medical Officer, such that casualties will get prompt and expert treatment when required.

7.09: Helmets

Skiers must wear a suitable helmet in the jump event.

Rule 8 - RERIDES

8.01: Team Representative

Each Federation shall select a team representative whose name shall be given to the Chief Judge before the start of the first event. The team representative shall represent all skiers from his federation. An alternate team representative may also be named.

8.02: Reride Criteria

When unfair conditions or a malfunction of the tournament committee-supplied equipment occurs, which, in the opinion of a majority of the Event Judges, adversely affects a contestant, he shall be granted the option of a reride only on the passes affected. In the case of optional re-rides the score may only be protected for failure of tournament supplied equipment or under those circumstances explicitly defined in these rules. (2010)

When a skier receives an unfair advantage, the reride is mandatory. When taken, the reride is scored.

Failure to establish a time through the course in slalom or jump is considered a malfunction of equipment and a reride will be given. The score is not protected.

(2001)(2003) If a skier's turn in jump or slalom or tricks is interrupted between passes due to the above listed circumstances, and the interruption causes a delay exceeding ten (10) minutes, then the skier shall be allowed a free warm up pass/ jump with a protected score on passes already completed. The warm-up pass is not scored although the skier will be given the distance in the case of jump.

8.03: Granted Reride Procedure (2008)

Rerides must be taken no later than five minutes after they are granted and may be taken immediately at the option of the contestant (cf. 14.14 for slalom rerides and 13.15 for jumping rerides). If the contestant elects to take a five-minute rest, the next contestants in order shall ski, and the reride shall be taken at the conclusion of the skier's run during which the five- minute rest period expires. However, the rest time will not be allowed to affect the skiing order if it is seeded or in the finals of a major tournament.

8.04: Requests for Rerides

Requests for rerides may be initiated by a Judge for the event before the next contestant starts or may be initiated, as soon as possible, by the contestant or his team representative and shall be decided as soon as practicable thereafter. If, in the opinion of the Judges for the event, the request was not initiated as soon as possible after the contestant skied, the request shall be denied.

8.05: Use of Flags

When a mandatory reride occurs, a red flag must be shown in the boat. When a skier is granted an optional reride and elects to take it, a green flag must be shown in the boat.

The flag must be shown during all movements of the boat outside of the competition course.

Rule 9 - PROTESTS

9.01: Who may Protest and How it is done

(2010) Protests shall be made to the Chief Judge only by a team representative and shall be considered by the Appointed Judges. Protest must be made in writing, must state the reason(s) for the protest and quote the relevant rule number(s), and must be filed as soon as possible, but no later than 30 minutes after the results of the event are announced and the Judges scoring forms are available for inspection.

9.02: Allowable Reasons for Protests

Protests shall be allowed only for failure of the tournament committee, officials, judges, calculators to comply with these rules and only if this non-compliance with rules has an adverse effect on a skier. No protest shall ever be permitted on a judgment decision by the Judges.

9.03: Protest Submission Procedure (2009)

Protests must be accompanied by the approximate equivalent in local currency of 25 US Dollars. - This amount will be refunded if the protest is considered reasonable by the Judges. (2009)

9.04: Computation Error Procedure

A correction of an error in the computation of scores shall not be considered a protest, and the correction shall be made upon approval of the Chief Judge and Chief Scorer if requested within two hours after the results of the event are announced and the Judges' scoring forms are available for inspection.

Rule 10 - BOATS - SKIS - TOW LINES

10.01: General Boat Description (2004)

For IWSF Towboat Approval refer to Official IWSF Towboat Policy.

a) Boats must have the performance necessary to attain and maintain the required boat speeds while towing a heavy skier under tournament conditions.

b) Overall length shall be approximately 5 meters but must not exceed 6.5 meters. The beam shall be not less than 1.80 meters and not more than 2.50 meters.

c) Boats shall be equipped with a towing pylon on the centerline of the boat, approximately amidships which shall be a minimum of 65 cm. and a maximum of 1.20 meters above the water when the boat is standing still with no occupants aboard. The entire pylon assembly shall be of fail-safe construction, designed to withstand a minimum loading of 600 kg. through an angle of 70º from the stern on both sides.

The towing pylon shall have an area integrated in its design for attachment of a trick release mechanism. It is recommended that this area be included both above and below the tow rope attachment location and be located as required to insure clearance of the rope and/or trick release mechanism from the engine housing. This area for attachment of the trick release mechanism shall be cylindrical with a diameter of 50.8mm, +0.00mm, -0.25mm, and a minimum height of 28mm. A centering hole with a diameter of 6.000mm, +0.35mm, - 0.0mm, and a minimum depth of 1.8mm shall be located on the centerline of the attachment area height and be oriented toward the front of the towing pylon. Any manufacturer not wishing to comply shall be responsible to see that trick releases fitting his pylon are available at tournaments where his boats are used. (See Diagram-7).

d) Either inboard, inboard/outboard, or outboard power may be used.

e) A maximum of 4 different makes and models of boats shall be chosen from among those boats approved by the IWSF Tournament Council in accordance with the obligations. A minimum of two identical boats must be made available for each make and model chosen. The IWSF Tournament Council and the IWSF Federations shall be notified of the choice of boats at least 6 months before the start of the tournament and which boat shall pull each event 3 months before the start of the tournament. (2010) Full information (engine size, prop pitch, etc.) on each boat shall be published a minimum of 3 months before the start of the tournament.

~~f) The boats must be equipped with adequate two-way radios.~~

~~g) The boats must be equipped with at least two accurate speed measuring devices operating on separate pickup tubes.~~

h) The towboats for each event shall be chosen, from those provided, by the Chief Judge and the host Region's Tournament Council Chairman.

i) For Jumping and Slalom, identical boats must be used by contestants in an event. For Tricks, the skier may select any one of the types of boats chosen for the tournament. Two teams of drivers and boat officials may be assigned to the Trick event at the option of the Chief Judge. The driver may be changed by the Chief Judge if he deems it necessary due to the length of the event. The Chief Judge may decide to use alternating identical boats to eliminate lost time and to speed up the running of the event.

10.02: Who may ride in the boat

Only designated persons may ride in the boat during the competition. (See Rules 13.09, 14.03, 14.11, and 15.11).

10.03: Skis

a) Maximum ski width shall not exceed 30 percent of the overall length.

b) Any type of fixed foot bindings may be used.

c) Devices affixed to the ski intended to control or adjust the skiing characteristics of the ski are allowed as long as they are fixed in that they do not move or change during actual skiing.

d) No other devices are permitted.

e) Skis must be safe. There must be no unnecessary sharp or abrasive (to the touch) metal, wood or other attachments to the ski which could, in the opinion of the Safety Director, inflict injury to the skier should he come in contact with the ski in a fall.

10.04: Tow Lines (2007)

The Tournament Committee shall furnish single-handle 23 m and 18.25 m tow lines constructed as in (d) below, made of 6 mm., single braided, monofilament line of plastic material, with the handles and lines meeting the following specifications:

a) Number of Strands = 12

(2001)

Minimum Number of Yarns each strand = 60

Minimum Diameter at 5.5 kg. load = 6.3 mm.

Weight per meter: 23.0 grams/meter maximum

Breaking load, minimum = 590 kg.

Elongation at 115kg tensile load: 2.4% +/- 0.8%.

The gauge length shall be set at 5.5 kg. tensile load.

All measurements of tow lines shall be made under 20 kg. tension and shall be made between the following points as applicable: (1) the center line of the handle at the point furthest from the attaching loop; (2) the inside surface, furthest from the handle, of any attaching loop.

b) Samples of the tow line material to be used by the Tournament Committee shall be supplied to the Chairman of the Tournament Council no less than one year before the tournament for testing and approval. Following approval, the Tournament Committee shall make the line available to any affiliated Federation at a reasonable cost.

c) Splices shall be 15 cm. (minimum) long secured with tucks before and/or after the splice, or knotted to prevent slipping.

d) The tow lines may be made in one section or alternatively in two sections consisting of a single line 21.5m long for jumping, and 16.75m long for slalom, and a handle portion 1.5m.

One-piece lines are optional, but two-piece lines must be provided by the Tournament Committee, and 21.5m and 16.75m. portions must be made available. Multi-segment slalom lines may be used. The segments shall be colored in the same sequence as the loops as shown in 10.04 g).

e) The handle shall be made of 2.50 to 2.80 cm. outside diameter material with no sharp edges or projections, with unpainted wood or other non- slip surface or coating. The attaching ropes must in all cases go through the handle and must be attached so there is no possibility of movement between the rope and handle when in use. The minimum certified breaking load of the handle shall be 270 kg. applied at the rate of 290 kg. for a minute at two load points 9 cm. apart at the center of the handle with the ends supported at the rope holes. The handle shall be attached to the rope so that it is perpendicular to the direction of the line. The handle measurements specified in 10.04 (g) is the end-to-end length of the handle.

f) Tow lines to be used for the Slalom event shall have loops spliced into the line at distances from the handle of 16m, 14.25m, 13m, 12m, 11.25m and 10.75m to permit quick change of line length.

(2001)
Additional loops should be added if there is a reasonable expectation that they will be used. The lengths are as follows:

10.25m
9.75m
9.50m

Due to the physical difficulty of adding splices for a 25cm shortening, a different rope may be used for the 9.5m shortening if necessary.

A tolerance of plus or minus 15 cm. on the distance from the loop to the handle is allowed for the rope lengths at 18.25m, 16m, and 14.25m.

From the 13m rope length on, this tolerance is reduced to plus or minus 7.5 cm.

The loops may be color coded to help differentiate between them. If the rope is color coded, the following sequence must be used:

18.25m red
16.0 m orange
14.25m yellow
13.0 m green
12.0 m blue
11.25m violet (blue/white)
10.75m white
10.25m pink
9.75m black
9.50m red

The end loop on the rope need not be color coded.

The shortening should be done by putting the loop directly over the pylon. (2007)

g) Dimensions shall be as follows:

h) Differing rope specifications

Organizers should supply a rope of a certain allowable specification and continue to use ropes of that same specification for the entire event, both preliminaries and finals. This does not prevent using ropes of different specifications for different events as long as a rope of the same specification is used for the entire event.

i) Slalom ropes must use a shock tube that is a minimum of 60 cm and a max of 1.2m (2007)

j) A short segment of rope may be replaced by a substitute section for speed control rope tension measurement that will be at least as strong as the rope it replaces and cause no observable change in the rope performance.
This section will typically be 0.5m. The remaining rope will be adjusted so that all lengths and tolerances are met from 10.04 g with the substitute section included.

(2002)

k) Optionally, in the jump event, on an experimental basis, a "Spectra" line may be supplied. In this case, a standard line must be avialable for use as well. The "Spectra" line specifications shall meet at a minimum the following requirements:

Breaking load, minimum = 590 kg.

Elongation at 115kg tensile load: 3.2% maximum

*(2003)(2008)***

The skier may supply his own rope under his own responsibility which may be any combination of "Spectra" rope and / or normal rope (per 10.04 a).. The skier must get the line checked by the homologator prior to skiing.

National Federations or Organisers may decide not to allow skier supplied ropes at smaller events.

10.05: Ski Lines for the Trick Event

The contestant must furnish his own line and handle for the Trick event of any length and of any dimensions or material.

10.06: Skier Supplied Handle in Slalom and Jump

For Slalom and Jumping, each contestant may furnish his own handle to be attached to the tournament line providing he notifies the starter, at the dock, at least three skiers on the starting list before his turn, of his wish to change handles.

The handle may be of any material.

The length of the handle attachment measured from the inside surface of the attaching loop furthest from the handle to the center of the portion of the handle furthest from the attaching loop must be 1.50m +2.5cm / -10.0cm.

The handle must conform to the dimensions shown in 10.04 g.

10.07: Speed Control (2004)(2008)(2009)

Speed control will be required for the World Championships. The specific make and model of speed control will be announced when the boats are announced for the World Championships (see 10.01 e).

The speed control program version to be used will be announced 3 months prior to the relevant World Championships. That version must be available world wide and may not change until after the Championships.(2009)

The version will be posted on the homologation notice.

Further, speed control will be required for all Ranking list and Record tournaments starting Jan.1, 1998 and for the 1997 World Cup tournaments.

Some of the important points are as follows:

(a) If speed control breaks then go to manual. If a replacement unit or boat is not available, or the unit cannot be quickly repaired, then the tournament shall be continued with manual driving with performance restrictions for those performances done with manual driving. (These restrictions are noted in the Additional Rules section notes)

When the speed control cuts out or fails to operate or is a deviation from normal operation (i.e. a malfunction) the skier is entitled to a re-ride for failure of equipment and can improve the score.

(b) If the unit allows, the speed may be micro adjusted a set number of specific speed steps to compensate for wind or current conditions on a pass by pass basis under the control and/or observation of the boat judge.

(c) The principle job of the speed control is to provide independence of the manual operator and to give in tolerance speeds, as close as possible to actual times.

(d) The Boat Judge and the Driver shall jointly agree on the setting of the speed control and the allowed adjustments for wind conditions, etc., with the goal of having the machine produce actual times for each pass.

(e) If the boat officials feel that a significant change must be made in the setting for the jump event (i.e. one letter change) to obtain the proper actual time, they will notify the skier of the change when it is made, before his next jump.

(f) For each skier, a written record shall be kept of the initial setting of the speed control and any changes that are made during his turn.

(g) For jumping, the manufacturer's recommendations shall be used regarding any skier selections of parameters.
For Perfect Pass, this means that a skier may select a letter in the range of plus or minus three letters from the initial selection indicated by the weight of skier with equipment but without skis.(2003)

The skier's weight will be determined by using a scale on the dock weighing the skier in jump gear and equipment, but without skis.(2003)

(2003) In an elite cash prize tournament the skiers are allowed to use the World Record distance as their best.

h) No back up time is required when using speed control (2002)

i) Each currently manufactured speed control system has parameters that are to be set to provide proper and fair operation. Charts for the two major manufacturers are included and must be followed (2002)

j) There must be a second display unit for the Boat Judge in slalom and jump if the speed control system is not GPS based.
However, a second display is require for slalom and jump for titled and Elite events regardless of the technology type. (2004)(2009)

k) In slalom, the skier's weight will be determined by using a scale on the dock weighing the skier, but not the ski.(2004)

Official settings reference chart (2008)

Speed Control Settings Chart

Special Note: Speed Control systems are evolving and the most up to date information is incorporated into the Settings Chart. The IWSF is working closely with speed control manufacturers to ensure the devices meet competition needs. Notable changes are due to the incorporation of GPS which allows "virtual" buoy timing and may or may not be integrated with magnet systems. Only approved speed control systems will be supplied on tournament boats.

The ultimate goal is to minimize, if not eliminate variable input except for the chosen speed.

10.08 Radio Communication (2007)

Radio communication with a competitor while skiing is not allowed

10.09 Boat Manufacturer's Equipment (2007)

Variations or special equipment unique to certain boat manufacturers will be addressed in this rule.

a) Hydrogate

The Hydrogate can be set in one of two positions, Slalom or Tricks/Jump

Tricks – default is tricks/jump - skier can choose either slalom or tricks position and the skier may have the setting changed between passes.

Slalom/Jump - skier can choose the position on the dock before he starts. It will remain in that position for his turn.

10.10 Boat GPS Speed Control and Timing Setup (2009)

The GPS location set up should be according to manufacturers specification. The Homologator and Driver must check together that the set up is correct and according to the manufacturers guidelines.

Rule 11 - BOAT SPEED AND TOLERANCES

11.01: Boat Speeds (2009)

All speeds are speeds over the bottom.

The boat path in all events is intended to be a straight line and the speed must meet all indicated time chart requirements.

11.02: Tolerances (see also Rule 1.11) (2009)

All indicated speeds in Slalom and Tricks shall be accurate to plus or minus one km/h. For a speed to be considered accurate, the maximum and minimum speeds recorded in the course, as noted by the official in the boat, must be within the tolerances allowed. In the Slalom event, the average speed in the course must fall within the tolerances allowed (Rule 14.03). The speed may vary a maximum of 1 km/h for a distance before entering the competition course and be maintained until the skier is out of the course. If, in the opinion of the official in the boat, the tolerance was exceeded, a reride will be mandatory if the speed variation was advantageous to the skier. If it was disadvantageous to the skier, he will have the option of a reride.

In the jumping event, it is the responsibility of the driver to drive the boat at the speed selected by the skier (see Rule 13.04) meeting the timed course requirements. The driver may not intentionally manipulate the speed control to intentionally allow the speed to increase or decrease. If, in the opinion of the boat judge, the speed before or after the timing course was a disadvantage to the skier, he will be given the option of a reride.

Replacement paragraph effective May 1, 2009

In the jumping event, it is the responsibility of the driver to set the speed control to the base speed and cut letter selected by the skier (see Rule 13.04). If the time does not meet the criteria in any segment, the driver will make the allowed appropriate adjustments to make it meet the timing chart. If, in the opinion of the boat judge, the speed before or after the timing course was a disadvantage to the skier, he will be given the option of a reride. It is intended that the speed control drive the boat at a constant speed through the 52m segment so that the speed the boat enters the 52m segment is the speed that it leaves the 52m segment.

11.03: Accuracy of Timing Devices

Timing devices in all events shall be accurate to at least 5 parts in 10,000 (.01 sec. per 20 sec.). Any timing device used in a tournament must be checked for accuracy by the Chief Judge, Homologator, or Tournament Council representative.

For a new design to be approved, the manufacturer must supply its test data and test method information to the IWSF Tournament Council for approval.

Rule 12 - DEFINITIONS

12.01: Competition Area

The suggested tournament layout is shown in Diagrams 1, 2, 3, 4 and 5. The dimensions of the courses shall be as indicated; however, the layout of the competition area may be varied to suit the tournament site. No buoys or markers other than those indicated by Diagrams 1, 2, 3, 4, and 5 and video jump measurement buoys are permitted within the competition area except to mark safety hazards, landing or starting areas, or turning buoys. Any such buoys shall be distinguishable from tournament buoys and shall be pointed out to skiers at the start of the competition.

The entrance of the courses for each event are defined as follows:

Slalom: The start gates of the slalom course on the first pass

Jumping: The 180m. buoy on each pass

Tricks: The first trick buoy on each pass

12.02: Definition of a fall

A fall in any event is defined as accomplished at the moment any one of the following occurs:

a) The skier loses possession of the tow line;

b) The skier does not have at least one ski on one foot; or

c) The weight of the skier is not primarily supported by his ski or skis; and, in addition, the skier is ultimately unable to regain skiing position.

12.03: Definition of Skiing Position

Skiing position is defined as that position in which all of the following exists:

a) The skier has possession of the tow line; and

b) The skier is riding forward or backward with a ski or skis on his feet; and

c) The weight of the skier is entirely supported by his ski or skis, or the skier is ultimately able to regain control.

Rule 13 - JUMPING

For the boat, see Rule 10.01, and for the tow lines 10.04 and 10.06.

13.01: General Jump Event Conditions

The skier shall be entitled to three jumps or passes or falls from the time he starts in the preliminaries and three jumps or passes or falls from the time he starts in the finals.

a) Women jumpers will have the option of choosing either a height of 1.65 m. or 1.50m (see Rule 13.02d).

b) Men jumpers will have the option of choosing either a height of 1.65 m. or 1.80m (see Rule 13.02d).

Only the length of the jump will be considered no matter what ramp height is chosen by the skier.

A skier qualified for the final round may change his chosen height of the ramp for the final round subject to a time deadline set by the Chief Judge.

Skiers jumping at each height will be drawn together and will ski before those jumping at the higher height setting in both the elimination and final rounds.

A fall shall not eliminate the skier from the following pass provided that fall is a result of a jump.

A contestant may refuse to enter the jump course by throwing the handle in the air. He shall not be penalized for so doing providing this refusal was for a reason judged acceptable by the Event Judges. To receive any consideration of a reride request for conditions before the 180m buoy, the skier must throw the handle before entering the course. Once having taken the jump the skier loses all right to a re-ride for conditions before the 180 m buoy. The skier must be ready to ski immediately upon the boat's return. Should the skier not be ready or should the reason be judged not acceptable by the Event Judges, one jump shall be deemed to have been taken. If a skier notices that his equipment is damaged (broken fin, binding, ski...), the Event Judges may grant him 3 minutes to repair or change the broken equipment and to continue competing.

In the case of a fall after a jump, the skier who is not back on his skis within three minutes (including any repair of equipment) after the towboat is ready to take him will not be allowed to complete any further jumps in that round. If the skier is ready before the three minutes expires, but the boat judge feels it might not be safe for him to compete he may ask the safety director to check the skier. During that time, the clock is stopped until the Safety Director decides if it is safe for the skier to continue.

13.02: Description of the Jump Ramp

The jumping ramp shall be an inclined plane with an apron on the right-hand side. The ramp shall meet the following specifications:

a) Width: 3.70m to 4.30m at all points. 4.20m to 4.25m is recommended.

b) Length out of water at all points.

Length out of water table
Ramp Ratio	Minimum	Maximum	Recommended
0.235	6.40m	6.80m
0.255	6.40m	6.80m
0.271	6.40m	6.80m	6.75-6.80m

a) Length under water: 50 cm. minimum.

b) Ratio of ramp height at take off edge to ramp length out of water:

- 0.271 +/-0.003 or 0.255 +/-0.003 for Men, at the skier's option

- 0.235 +/-0.003 or -0.255 +/- 0.003 for Women, at the skier's option

Ratios are to be computed on both sides of the ramp, and the ramp height at the take off edge at the two corners may differ by no more than 2.5 cm. (See Ramp Setting Chart).

c) Jumpers must notify the Chairman of the IWSF Tournament Council, the Chairman of the Region Tournament Council, and the organizers, on the official entry form, what their choice will be for the ratio mentioned in d) above.

d) The surface must be flat with a maximum deviation of 2.5 cm. from a plane. This will be verified by two measurements.

- Place a taut string from the lower right corner (jump course side) of the surface to the upper left corner of the surface and measure the maximum distance between the ramp surface and the string.

- Place a taut string from the bottom center of the surface to the top center of the surface and measure the maximum distance between the ramp surface and the string.

These distances are to be recorded and must not exceed 2.5 cm as stated above.

e) An apron shall extend the full length of the ramp on the right hand side and be at least 30 cm. under water when the ramp is set for the 1.80m height in Men's divisions. Ramp aprons shall be of a different color or shade from the ramp surface so as to provide a satisfactory contrast between apron, water and jump surface.

f) 6.40 and 6.80 length markings, clearly identified, shall be placed on the apron and/or ramp surface so that they are readily visible. Older ramps with permenantly embeded 6.70 m length markings shall also be allowed.

g) A line visible from shore shall be painted at the center of and just below the take off edge for meter sighting purposes. The jumping ramp must be securely anchored in place so that the center takeoff edge will not vary more than the sighted width of the crosshair on both meters after coming to static rest. "Static rest" is the position assumed by the ramp in ambient water not affected by boat wakes, skiers' wakes or backwash.

h) All measurements of the ramp shall be made under tournament conditions, including the weight of watering equipment, and not including the weight of a skier.

i) The jump apron shall have a minimum angle of 28º from perpendicular and a maximum angle of 60°. The recommended angle is 45°.

j) It is recommended that all jump surfaces (fiberglass) be of a red-orange color. Wax surfaces on wood will remain their natural color.

13.03: Jump Speeds

The boat speeds for the jumping event shall be chosen by the skier from those listed in Rule 13.04 up to the maximum allowed as follows:

a) Men - 57 km/h

b) Women - 54 km/h

13.04: Boat Timing and reride situations

The boat shall be timed in the jump course between buoys 15ST-19ST and 15NT- 19NT (52m - 1st segment), 15NT-19NT and 15MT- 19MT (30m - 2nd segment) and between 15MT-19MT and 15ET-19ET (41m - 3rd segment) in order to maintain the tolerances listed in the charts below.

It is mandatory to record the times for the 3 segments for all speeds (men and women) at RC and RL competitions and submit these times to IWSF for evaluation.

The times must be in a text file format and emailed to the Tournament Council Chairman (tcchairman@iwsf.com).

TournamentCode;Division;Gender;Speed;Segment1;Segment2;Segment3;TimerType;SkierLastName;SkierFirstName;Round;Pass;Class;Boat;EngineSize
example

09BEL08;Junior;M;48;3.95;6.16;3.13;17.30;PS;Huisman;Perr;1;3;L;MALXI;60

Division: Junior, Open, Senior

For Record Capability, Ranking List and Elite events the published 3 segment times for 57 kph must be used for distances over 60 metres (men). For distances below 60m (men), the 1st segment tolerance check is not required. Segments “1+2” and 3 must be in tolerance in all cases except as otherwise noted in the appropriate Jump Timing Reride Chart.

For women the published 3 segments times for 54 kph must be used in the case of a Record Application. For all other cases, the 1st segment tolerance check is not required. Segments “1+2” and 3 must be in tolerance in all cases except as otherwise noted in the appropriate Jump Timing Reride Chart.

Times must be recorded to the 100th of a second.

The times driven should be as close to the actual times as possible. This will be monitored by the Chief Judge.

The rules governing skier letter or distance selection apply for this mode as well.

In the case where a skier refuses the ramp or falls on the approach to the ramp, the maximum speed tolerance allowable for segment 1+2 shall be increased by .05 seconds. This may be done by either subtracting .05 seconds from the maximum speed tolerance or by adding .05 seconds to the time recorded. On a pass or a fall before the ramp, the third segment time will not be used

At the skier's option, the speed control mode may be set to either normal, meaning the case where the speed control just returns to the base speed setting in the third segment, or to the new settings (three segment mode) where the boat is programmed to meet the three segment times.

In certain situations, the tournament officials may decide to use the normal chart for all skiers. An example might be a U13 division.

Normal Mode (return to baseline)

	1st+2nd Segment (82 mt)			3rd segment (41 mt)
Speed	fast	actual	slow	fast	actual	slow
57	5.11	5.18	5.25	2.52	2.59	2.66
54	5.39	5.47	5.55	2.66	2.73	2.81
51	5.70	5.79	5.88	2.81	2.89	2.98
48	6.05	6.15	6.25	2.98	3.08	3.17
45	6.45	6.56	6.68	3.17	3.28	3.39
42	6.90	7.03	7.17	3.39	3.51	3.64
39	7.42	7.57	7.73	3.64	3.78	3.94

Jump Timing Reride Chart
seg1+2	Seg3	ACTION
OK	OK	None
OK	F	mandatory reride only if distance is best distance in skiers turn
OK	S	optional reride (protected score)
S	OK	optional reride (protected score)
S	F	mandatory reride if best dist., otherwise optional with protected score
S	S	optional reride (protected score)
F	OK	mandatory reride
F	S	mandatory reride
F	F	mandatory reride

Generally speaking, if any time is too fast, then a reride for the skier is mandatory. If no times are too fast, but if any time is too slow, then a reride for the skier is optional. On a pass or a fall before the ramp, the 3rd segment time will not be used. All situations are detailed in the timing chart below.

If the second or third segment is fast on a successful jump but the distance recorded is less than previous or following jumps in the round by the skier, then a reride will not be awarded.

Three segment mode

Boat Timing (Reference 11.02)
Speed	*1st segment*		1st+2nd segment			3rd segment
Speed	*fast*	*slow*	fast	actual	slow	fast	actual	slow
57	3.25	3.36	5.11	5.18	5.25	2.36	2.40	2.46
54	3.43	3.54	5.39	5.47	5.55	2.54	2.59	2.66
51	3.63	3.75	5.70	5.79	5.88	2.68	2.73	2.81
48	3.86	3.98	6.05	6.15	6.25	2.84	2.89	2.98
45	4.11	4.25	6.45	6.56	6.68	3.01	3.08	3.17

The 3rd segment times only apply when the speed is at the maximum for the division. After the 3rd segment, the speed control algorithm will be to set the speed to the base selected speed.

When the speed is below the maximum for the division, the third segment will not be used with the exception that it may not exceed the maximum speed time for the event division. (Please note that if this happens, it is likely that the speed control is not working according to the intended algorithm and the manufacturer and the TC Chairman should be notified). The manufacturer's algorithm in the less than maximum speed case is to set the mechanism to the base speed setting (no overspeeding and no underspeeding) in the 3rd segment.

Jump Timing Reride Chart at Maximum Division speed

Seg1	Seg2	Seg3	Action	Protected Score
OK	OK	OK	none	n/a
--	S	--	optional reride (protected score)	Yes
S	F	--	Mandatory Reride	No
OK/F	F		mandatory reride only if distance is best distance in skiers turn	No
F	OK	S/OK	optional reride (protected score)	Yes
S	OK	OK/F	mandatory reride only if distance is best distance in skiers turn	No
S	OK	S	optional reride NO protected score	No
F	OK	F	optional reride NO protected score	No
OK	OK	F	mandatory reride only if distance is best distance in skiers turn	No
OK	OK	S	optional reride (protected score)	Yes

The first row from the top that matches the situation is used

Jump Timing Reride Chart at below Maximum Division speed (2009)

Seg1	Seg2	Seg3	Action
OK	OK	not F for max speed	none
one segment is F for max speed and no segment is S			mandatory reride only if distance is best distance in skiers turn
one segment is F for max speed and at least one segment is S			mandatory reride only if distance is best distance in skiers turn, otherwise optional with protected score
No segment is F for max speed and seg1 or seg2 is S or F for requested speed			optional reride (protected score)

In the case where multiple rerides may apply due to fast third segment these shall be resolved taking the longest distance first.

13.05: Number of Jumps in Eliminations and Finals

Refer to Rule 13.01

13.06: Officials stopping a jump

A jump shall not be registered should the boat driver or the boat-judge/ official on board decide that there is a hazard because of dangerous water conditions, interference of another boat or other reason. The boat driver or the boat-judge shall then hold up his hand, or a red flag, and slow the boat a perceptible amount before the boat passes the ramp.

13.07: Scoring of a jump

A jump shall be scored when a skier passes over the ramp, lands and skis away with a tight line in skiing position without falling. If a skier falls as a result of a jump, he loses that jump. If he shall purposely touch any part of the tow line other than the handle while in the air, he shall receive no score for that jump.

13.08: The result of a skier falling

Every time a skier falls, it shall count as a registered jump. (Cf., however 13.01) If the falls more than once on a single pass through the jump course or return run, a jump shall be registered for each fall.

A jumper shall receive no further jumps in a round if, after leaving the boat's wake on a definite cut to the ramp, the jumper elects to pass between the boat course and the ramp, whether or not he retains the tow line. The jumper shall tell the boat driver at which distance and at what speed to pass the ramp, and the boat shall follow a straight path through the jump course at the specified distance from the right-hand side of the ramp.

13.09: Officials

There will be three Judges for the event. Two Judges will be stationed on shore. The third Judge will be in the tow boat. The two shore judges may also act as measurement judges if they have a full and direct view of the jump course.

The Boat Judge is authorized to give reruns under Rules 11.02, and 13.04.

There may be 2 or 3 people in the boat for jump and slalom.

The boat judge shall observe the accuracy of the boat path and verify its speed by checking the speed measuring devices.

If a rerun is given because of a faulty boat path or an error in speed, it must be taken immediately, and the Boat Judge must hold up an appropriate flag during the return pass to indicate that a reride will be taken on the jump that has just been completed.

When there is a fast 2nd or 3rd segment, the boat judge shall signal the skier by crossing his arms at 90 degrees (in the sign of an "X") to show that the skier may have a potential reride.

If there are more than two (2) rerides, the skier shall have the option of asking for a five-minute rest before continuing.

The rest time will not be allowed to affect the skiing order if it is seeded or in the finals of a major tournament.

13.10: Jump Distance Measurement

Jump distances shall be measured by video computer measurement systems approved by the Tournament Council.

The Tournament Council may approve systems based on video technology provided that proper verification and proof is given to the Tournament Council at least 60 days before the proposed use.

~~To insure accuracy, it is recommended that each meter station be no more than 70m from the point of landing.~~

The point of impact is defined the point on the water surface closest to the ramp that is touched by the skier when he lands. The distance is calculated from the impact point back to the ramp and then an offset adjustment of 2.1m is added.

13.11: Distance

Jump distances shall be measured from a point at the water line directly below the center of the top edge of the ramp to the skier's point of impact in the water closest to the ramp (first point of impact) and then an adjustment offset of 2.1m shall be added. The distance shall be communicated to the skier after each scoring jump.

For the video system, there shall be two designated officials (from different countries at international tournaments) operating the system who shall jointly make a judgement decision on the impact point. The calculated distance shall not be displayed until the impact point is jointly judged.

Since video jump measurement is used, video backup methods (video taping) must be used. ~~or a standard meter system may be used~~.

If the skier is misinformed or not informed of the distance, then a re-ride shall be offered on the next jump. Based on the circumstances, the Event Judges shall decide if the score is protected and inform the skier when he is offered the re-ride.

13.12: Scoring

The longest jump of each round will be the only one counted. Event placement for skiers qualifying for the final round will be based on their final round results only.

Jump distances may not be scored in increments finer than 10 cm.

The better result obtained by the skier, in either the preliminary or the final round, shall count towards team score.

13.13: Ties

If a tie exists for first place, it shall be run off. If a tie exists for 2nd or 3rd place, placement shall be decided on the basis of the higher preliminary round score. If a tie still exists, it shall be run off. The run off shall have a new drawing for order. Each tied contestant shall be allowed two jumps or passes or falls with the longest jump being scored according to Rule 13.12. Repeated ties shall be run off in the same manner until broken.

13.14: Safety Equipment

All contestants in jumping events shall be required to wear approved life jackets (7.03).

It is strongly recommended that skiers wear jump pants especially adapted for water skiing and approved by the Tournament Council, or a person appointed by the Tournament Council, for this purpose.

Skiers must wear a suitable helmet in the jump event (see 7.04). Should a skier go over the ramp not wearing a helmet that jump will be disallowed.

Rule 14 - SLALOM

For the boat, see 10.01 and for the tow lines 10.04 and 10.06; for the tolerances see 11.02, 14.03 and 14.16.
There may be 2 or 3 people in the boat for slalom

14.01: General (2009)
The contestant shall follow the tow boat through the entrance gate of the slalom course (Diagram 1), pass around the outside of any or all 6 buoys and proceed through the far end gate (constituting a pass), making the turn and returning through the course in a similar fashion, until he misses a buoy or a gate or falls.
The boat shall follow a straight path within the limits of the boat gate buoys.
The skier may elect to waive all passes below a selected rope length (or speed should the Event Judges lower the minimum starting speed). In such cases the skier may notify the dock official of his selected rope length (or speed) any time before he starts his run. A skier who fails to select his starting speed at the specified time, will start at the maximum starting rope length and minimum speed for the event. Further optional selection of slalom passes is also allowed. If a skier misses in a pass that follows an optionally skipped pass, he/she shall be scored as if the buoys were scored in the pass following the last completed pass.
The following speeds and tow line lengths shall be used for slalom:

		Men	Women
		Continuous	Continuous
1st Pass	18.25m rope	58 km/h	55 km/h
2nd Pass	16m rope	58 km/h	55 km/h
3rd Pass	14.25m rope	58 km/h	55 km/h
4th Pass	13m rope	58 km/h	55 km/h
5th Pass	12m rope	58 km/h	55 km/h
6th Pass	11.25m rope	58 km/h	55 km/h

In any further passes, the rope shall be shortened as shown in Rule 10.04 f).
If, in the opinion of the majority of the Event Judges, the water or weather conditions require it, the speed of the first pass may be lowered to 55 km/h or 52 km/h for men and 52 km/h or 49 km/h for women, and then proceed upward in speed in 3 km/h increments until the first normal pass is reached. Then the skier will proceed as shown in the table.
(2009)
The Men's final round shall start at the 13.00m pass and the Women's final pass shall start at the 14.25m pass unless changed by the Event Judges (See above)

14.02: Entering the Course (2009)
A contestant may refuse to enter the slalom course by throwing the handle in the air. He shall not be penalized for so doing providing this refusal was for a reason judged acceptable by the Event Judges. The skier must be ready to ski immediately upon the boat's return. Should the skier not be ready or should the reason be judged not acceptable by the Event Judges, he shall be disqualified from the remainder of the event.

Between the start dock and the gate buoys on the first pass, if a skier notices that his equipment is damaged, the Event Judges may grant him 3 minutes to repair or change the broken equipment and to continue competing. Once a skier has passed through the entrance gates on his first pass, he may not refuse to enter the course for the following passes.

14.03: Boat Times (2009)
Boat speed will be verified by an automatic timing system.
Timing used for boat speed verification, shall be from the entrance gate to the boat gate following the buoy at which the last full point is scored in the pass.
Times must be recorded to the 100th of a second.
An official shall ride in the boat to check speed by verifying the times recorded by the speed control system and by observing the water speed measuring devices.
A separate display for the Boat Judge will be used for this purpose if the speed control system is not GPS based. However, a second display is required for titled and Elite events regardless of the speed control technology type.(2009)
The recorded time will be communicated to the Judge's Stand by radio.

BOAT SPD	Score:	0-0.5	1-1.5	2-2.5	3-3.5	4-4.5	5-5.5	All 6
KPH	Fm/To:	E-1	E-2	E-3	E-4	E-5	E-6	E-X

	Fast	1.64	4.15	6.67	9.20	11.73	14.25	16.00
58	Ideal	1.68	4.22	6.77	9.31	11.86	14.40	16.08
	Slow	1.71	4.28	6.84	9.41	11.97	14.53	16.16

	Fast	1.73	4.37	7.03	9.69	12.35	15.02	16.86
55	Ideal	1.77	4.45	7.13	9.82	12.50	15.19	16.95
	Slow	1.80	4.51	7.23	9.93	12.64	15.34	17.04

	Fast	1.83	4.62	7.43	10.24	13.05	15.87	17.72
52	Ideal	1.87	4.71	7.55	10.38	13.22	16.06	17.93
	Slow	1.91	4.78	7.65	10.52	13.39	16.25	18.13

	Fast	1.94	4.90	7.87	10.85	13.83	16.81	18.78
49	Ideal	1.98	5.00	8.01	11.02	14.03	17.04	19.03
	Slow	2.03