Raul Castillo is an American mixed martial artist from Half Moon Bay, California .Raul has been practicing martial arts since the age of four. Achieving the rank of Black Belt at the age of eleven, under George Marenco in the style of Kami-Do-Ryu, Raul later went on to once again achieve the rank of Black Belt in Brazilian Jiu-Jitsu at the age of twenty-two. Holding over forty titles in competitive Brazilian Jiu-Jitsu and submission grappling along with a professional fight record of 6 wins and 1 loss. He is currently signed with Strikeforce. Won Strikeforce veteran Eric Lawson by TKO at GC 72 - Seasons Beatings, defeated Brandon Michaels by Rear-Naked Choke at his Strikeforce debut, loss by unanimous decision to Yancy Medeiros at Strikeforce - Challengers 6.