
Meet The Team

Owner and Chief Judo Instructor
Josh Ruiz
Josh started Judo in 2003. Training under Bob Byrd and Bruce Troups, he honed his skills as a high level competitor. Josh is a two time national gold medalist. In 2009, he earned a bronze medal in the Judo Veterans World Championship, which is a very prestigious competition on a global scale. He is also a multiple time local and regional medalist. He has been the #1 ranked M1 Veterans player on the US, and held the title of #1 ranked male Judo player in the United States in 2016.

Chief Brazilian Jiu Jitsu Instructor
Jeffery Donovan
Jeffery is 2nd degree Brazilian Jiu Jitsu black belt under Romero "Jacare" Cavalcanti, including being certified by the International Brazilian Jiu Jitsu Federation. He is an extremely decorated Jiu Jitsu player, achieving many Jiu Jitsu titles across the United States. Some titles include Tennessee Top Roller, Respect 4 Kansas City Super Fight winner, and the winner of Atlanta's very own Fight to Win competition. Jeffery is also CPR and AED certified.

Head of Kids Program
Andrew Hamilton
Andrew has been surrounded by martial arts all his life. He has experience in Judo, Brazilian Jiu Jitsu, Taekwondo, Bai Mei Kung Fu, Boxing, and Kickboxing. Andrew is a first degree Judo black belt and a blue belt in BJJ. He has three kids, and has had years of experience coaching and encouraging young minds. He is certified as a USA Judo National level Coach including SafeSport and Concussion certified.

Chief Judo Instructor
Dr. Gary Berliner
Dr. Gary is an international level judo referee, serving in many events including IBSA World Championships and other premier Paralympic competitions. He has been active in the sport the sport for over 64 years. His rank is hachidan (8th degree black belt) in Judo. You will regularly see him as Head Referee at most USA Judo National and Regional sanctioned events. In 2024, he competed in the Judo Veterans World tournament where he won Bronze, and his son, Kell Berliner, won Silver. He is a medical doctor and owner of Chestatee Emergent Medical Care.