Olivier Rioux, a Canadian basketball phenom who attended IMG Academy in Bradenton, Florida, holds the official Guinness World Record as the tallest teenager in the world and the tallest high school basketball player in history, standing at an extraordinary seven feet seven inches to seven feet nine inches during his secondary school career. Rioux began capturing international attention as an early adolescent when he stood over six feet tall by age eight and surpassed seven feet before entering eighth grade. Prior to Rioux, other towering high school athletes included Mamadou N'Diaye, who measured seven feet five inches while playing high school basketball at Brethren Christian in California, and Tacko Fall, who stood seven feet six inches during his senior prep season in Florida. These extraordinary players command tremendous attention due to their rare wingspan, standing reach, and dominant rim-protecting ability.