William Martinez Jr. - Owner/Head Instructor
William Martinez Jr. is a Black Belt in Brazilian Jiu-Jitsu under Master Carlos Machado, 8th degree Black Belt.

Will was awarded his Black Belt on October 27, 2012, by Master Carlos Machado, at the 5 Brothers Camp 2012 (Rigan, Roger, Carlos, John, and Jean Jacques Machado) in Dallas, Texas.

Will is also an active Pro MMA fighter, with a record of 9-3-1, his most recent win being at Bellator 110, in February 2014. His MMA training began in 2007 with Philadelphia Fight Factory. He has trained side by side with great fighters such as Steve Haigh, Zack Makovsky, Steve McCabe, Eddie Alvarez, Tara Larosa and Phil and Rick Migliarese, Tim Carpenter, Tim Hart, Daniel Tavares, and Ryan Hall to name a few. These training partners have helped him become the professional fighter he is today.

He continues to compete in Grappling tournaments up and down the east coast.
(Both in NO GI and GI) Facing off against some of the best, David Bass, Seth Smith, Andy Main, Zack Makovsky, Bill Algeo, and Jimmy Morrison. The latest being the 2012 Naga Tournament in Wildwood NJ, where he won the Belt for his weight/belt class.

In early 2011, Will opened his school, Martinez Brazilian Jiu-Jitsu in Philadelphia, where his BJJ, MMA, and Muay Thai programs have grown quickly and far exceeded his original plans. His goal is to continue to train with his students, and spreading the Machado Style Jiu-Jitsu skills throughout his current location in Philadelphia, and one day expanding out to other locations.
Instructors
Jesus Martinez - Instructor
Jesse Velez - Kids & Teens Instrutor
Lana Martinez - Teens Jr. Instructor
Kevin Quigg - Gi Instructor 
Jose Matias  - Gi Instructor
James Morris - 6:30am BJJ Instrutor
Kyle Daukaus - Daukaus Kickboxing 
Chris Daukaus - Daukaus Kickboxing 
Jennifer Beck & Criszaida Adames
​Woman's Kickboxing Instructors