12855 Pomerado Rd, Poway, CA 92064, USA

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J.D. Speck

Head Instructor

J.D. is a Jiu Jitsu Black Belt under the legendary Baret Yoshida. He began his training under Master Yoshida in 2007 and is 1 of 3 current students to have ever gone from White belt to Black belt with him.


 J.D. has a long history with martial arts, starting with Tae Kwon Do at age 5 and continued his training through the years with Kung Fu, Kick Boxing, Boxing and Mixed Martial Arts. Coaching Adults and Kids in San Diego since 2009, he brings the traditional values of martial arts: Respect, Honor and Discipline alongside the Baret Submissions curriculum and it has led to several IBJJF World Champion students.  

Certified under the National Academy of Sports Medicine with 10+ years of experience, J.D. is also our head trainer for Strength and Conditioning and is available for private instruction in those areas as well. 

Jeff Mata

Judo and Jiu Jitsu

Jeff is a born and raised Poway local. He started his grappling experience as a wrestler on the famous Poway Titan Team under Wayne Branstetter.

In 2008, after a rare boxing injury, Jeff lost his eyesight. Looking to keep up with his passion for combat sports and athletics, he found Judo as a way to continue his training without the need for eyesight. He quickly found his way on to the U.S.A. Paralympic Team by taking Silver at the USA Judo Presidents Cup in 2014. The following year he competed in the 2015 IBSA World Cup and IBSA World Games. 

Finding such success in Judo, Jeff also began training Brazilian Jiu Jitsu under Judo and Jiu Jitsu Black Belt, Paulo Fernando. Again, the ability to use grips and technique lead to quick success for Jeff, this time competing against able sighted people. He is an active competitor with multiple wins on the regional and national circuit including 3 SJJF World Champion Gold medals.