Guilherme Bacha Guedes is a jiu-jitsu black belt under Ricardo Vieira (Rico) and Leonardo Vieira (Leozinho) who represents the Checkmat squad in the sport's international circuit. Bacha was a fundamental part of Checkmat's first Team World Title with the International Brazilian Jiu-Jitsu Federation (IBJJF) in 2021, a championship greatly facilitated by Guilherme's own unbeaten run in the tournament as a brown belt, a performance that won him global recognition as one of the top competitors in the ultra-heavyweight athletes in the sport.