University of Florida basketball player Olivier Rioux is quite literally reaching new heights in the 2026 NCAA March Madness tournament. Rioux, 20, stands tall at 7-foot-9, making him the tallest athlete to ever compete in the tournament, according to The Athletic. Rioux helped the Florida Gators beat the Prairie View A&M Panthers 114-55 during the Friday, March 20, match-up of the competition.