The link to the Championships Results:
iwwfed-ea.org: Campeonato Panamericano 2018
The 35+ Worlds is running now in Santiage, Chile on Lake Morros, one of the favorite lakes of Waterskiing. They have hosted many Championships and World Events, including the 2018 Pan Am Championships just last week.
http://iwwfed.com/calendar/world-championships/2019-iwwf-world-open-waterski-championships/