EST. SAN DIEGO 1949. AMERICA’S ORIGINAL COMBAT SPORTS GYM. Welcome to THE ARENA, where WE BUILD FIGHTERS! We provide world class coaching and training in Combat Sports / Martial Arts, Self-Defense & Strength & Conditioning. We offer our videos to help you be faster, stronger and more skilled in Boxing, Grappling, Jiu Jitsu, Judo, Kickboxing, MMA, Muay Thai, Wrestling & more. ABOUT US Founded in San Diego CA in 1949 by US Marine Sergeant Major Al Holtmann as the Southern California School of Judo & Ju Jitsu, we’re the longest running Martial Arts school in North America. In 2006, we updated our name to THE ARENA in honor of the modern day gladiators we train. We’ve taught over 100,000 students in-person and millions online, producing champions in sports and in life. Our mission is simple: WE BUILD FIGHTERS. So please subscribe to our channel, like & share our videos if you enjoy them, and visit us online or in person to learn more about our gym and our amazing history.