Home of Team Royce Gracie and Team Ganyao MuayThai... For over 17 years, USBA has been building and developing Champions, strengthening the mind, body and spirit of each individual. Ultimately, we are building greater unity in families, workplaces and in the communities we serve – vital benefits in today's society! For those of you who have not visited our school in Orange County, please take a look at the diverse and exciting programs we offer for all ages and interests. Contact us to enroll in a class, to request information, or to arrange a private interview, free introductory lesson, and tour of the school. Or call us at (949) 363-6500!