Arthur Detânico is a Brazilian jiu-jitsu black belt under Mateus Bernardi, and one of the main lightweight (76,00 kg / 168.0 lbs) grapplers to have originated from the Gaucho region, south of Brazil. Lesser known to mainstream BJJ fans during his colored belts career, Detânico's prominence in the sport took place soon after his black belt promotion, after his outstanding debut performance at the International Brazilian Jiu-Jitsu Federation (IBJJF) South Brazilian Championship.