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William Murphy, Ph.D.

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IBJJF 4th Degree Black Belt USJA San Dan in Judo Received all my BJJ belts jointly from Professor Marcio Simas and Mestre Sergio Luis da Penha, back when they were partners in Orlando, before Professor Marcio reaffiliated with Gracie Barra, and before Mestre Sergio Penha opened his current Las Vegas academy. My first experience with BJJ was by training with a gentleman named Kirk Ray in Pensacola, Florida, who was a student of Professor Chris Haueter, back when Prof Chris was still a purple belt.