Tye Ruotolo is an American submission grappler and mixed martial artist. A competitor with his twin brother Kade since the age of 3, Ruotolo is currently the youngest IBJJF World champion at black belt level in the history of the sport. At the 2019 ADCC World Championship, Ruotolo as a 16-year-old was the youngest competitor to participate in the competition and also to reach the semi-finals where he eventually came fourth place. Following promotion to black belt in December 2021, Ruotolo became a two division Who's Number One (WNO) champion, world champion at the 2022 World Jiu-Jitsu Championship, and a bronze medalist at the 2022 ADCC World Championship.