Since 2006, Undisputed Boxing Gym has been the Bay Area's home for people who want to train authentically and perform for life.
Since 2006, Undisputed Boxing Gym has been a resource for people looking to take their fitness pursuits to the next level. Owner Brian Schwartz is a 7-time world kickboxing and sport karate champion, undefeated in his pro kickboxing career. He knows what it takes to get fit, get toned, and train authentically.
Since opening UBG, Brian has curated a team of trainers committed to helping every member achieve their goals: signature group classes, personal training with pro fighters, and a full-service gym under one roof.
ISKA World Super Middleweight Champion. Fought exclusively for Strikeforce and K-1. Has trained pro athletes including Frank Gore, Nonito Donaire, Michael Crabtree, and Andre Berto. Creator of The Undisputed Workout™.
Train With BrianFostering a sense of belonging and support, in every round.
Embracing diversity in fitness, for all body types and all levels.
Cutting-edge workouts, equipment, and technology.
Fitness plans tailored to individual needs and goals.
60 hard-fought, non-stop minutes of boxing, kickboxing, strength, and conditioning. Pro-style heavy bag training with the freshest beats from our Undisputed DJs. No two classes are the same: expect the unexpected.
UBG isn't just a gym. It's a legacy of excellence and a hub for passionate people. First class is free.
Book Free Intro Class