Gary Tonon is a professional Brazilian jiu-jitsu (BJJ) practitioner and mixed martial artist. He is known for his exceptional grappling skills and has won multiple championships in BJJ, including titles at the IBJJF World Championships and the ADCC World Championships. Tonon is also a black belt under Renzo Gracie. In addition to his success in grappling, Tonon competes in mixed martial arts (MMA) and is signed with ONE Championship. He has gained recognition for his exciting fighting style and ability to finish fights, making him a prominent figure in both the BJJ and MMA communities.