Brazilian Jiu-Jitsu practitioner and mixed martial artist
Kron Gracie (born July 11, 1988) is a Brazilian and American mixed martial artist, submission grappler, and instructor. A member of the Gracie family of Brazilian jiu-jitsu, he is the son of 9th deg. BJJ red belt Rickson Gracie and a grandson of BJJ co-founder Hélio Gracie. Training jiu-jitsu from a very young age Gracie became a two-time IBJJF World champion and four-time Pan-American champion before receiving his black belt at the age of 19. By 2008 Gracie held a record of 51 consecutive matches won by submission at high level tournaments.
https://en.wikipedia.org/wiki/Kron_Gracie