Sunday, March 8th, 2009


Rosendo Diaz


Rosendo Diaz received his black belt in Brazilian Jiu-Jitsu in August of 2003, after having trained with David Adiv and Royler Gracie for over 10 years. In August of 2006, he received his 1st degree from Royler Gracie and in February of 2013 and June of 2017 he received his 2nd and 3rd degrees by Phil Migliarese.  Rosendo has an extensive training background in the Martial Arts with over 25 years experience. He was the defensive tactics instructor for the Montgomery Co. Sheriff’s Dept. during the late 90’s. He also travels throughout the country and abroad teaching the 3rd Generation Jiu-Jitsu Team curriculum.  Rosendo is recognized by the International Brazilian Jiu-Jitsu Federation (IBJJF).




Chris Kwortnik, Black Belt


Chris was promoted to black by Rosendo Diaz on March 19. Chris is an accomplished wrestler who was a 3 time Pa State Champion at North Penn High School and a 3 time Division I All American at NC State. He has over 35 years of grappling experience. Chris is also one of the head instructors at 3rd Generation.






Sheri Hockman, Black Belt


Sheri Hockman

Black Belt from Rosendo Diaz in Aug 2016.

Russian Kettlebell Certified via Steve Maxwell 2012

As a wife and mother, Sheri’s focus is to provide female self defense classes and conflict diffusion seminars with the goal to improve physical and mental awareness to maximize personal safety.  Aside from holding “All female” sessions, Sheri also speaks to male groups (such as sport teams) about topics referencing the positive impact boys/men have on the females in their lives and how “positive masculinity and mental strength” can improve many situations that they encounter.
“Knowledge Is Power”




Matt Coletta, Brown Belt


Matt has been training in Jiu-Jitsu for over 8 years. As a life long martial artist, he brings an abundant amount of experience to our academy. Matt’s teaching style encompasses all the positions of Jiu-Jitsu which translates into his students having a extremely well rounded game.







Dan Katz, Purple Belt

Danny  has been training since 2010. He has competed and placed at NAGA, Good Fight, Newbreed, UGC, both at his weight brackets and higher weight brackets.  He is a practicing attorney with a strong understanding of legal concepts related to self defense. Danny teaches our fundamentals class on Mondays @ 7pm, Tuesdays and Thursdays he teaches our lunch classes and he alternates with Rosendo teaching our no-gi class on Wednesdays.






Muay Thai Instructor

Bill Thanel has an extensive resume when it comes to the Martial Arts, we welcome Bill to our academy.  Bill heads up our kids kick boxing program as well as our adult Muay Thai program.

Black belt under William Acosta in Karate.

Muay Thai Kru certified under Kevin Seaman.

Brown Belt in Gracie Jiu-Jitsu under Phil Migliarese and Frank Ambrifi of Balance MMA.