Igor Feliz is a professional grappler and a jiu-jitsu black belt under Thaisio Feliz (his father), who represents the Future School Of Jiu-Jitsu in the sport's global circuit as well as the R1ING association. Feliz broke out as one of grappling's top figures during his colored belt career, a time when he conquered important medals of the International Brazilian Jiu-Jitsu Federation (IBJJF) both in the gi and no-gi rulesets, in tournaments such as the World, Pan, and American Nationals.