BJ Penn (now a UFC champion) trained in Brazilian Jiu-Jitsu for 4 years before he won the world championships. Most people take 8-10 years to receive a black b

BJ Penn (now a UFC champion) trained in Brazilian Jiu-Jitsu for 4 years before he won the world championships. Most people take 8-10 years to receive a black belt, and then a year or two to become competitive on the world level. I don't think its unheard of that a very talented kid could find a fantastic teacher and excel in a city-wide tournament.