Saturday and Sunday


Private Sessions



    Founded by Grand Master Clement Vierra (10th Degree black belt) and his wife Professor Rhonda Vierra (8th Degree black belt) in 1996. Also the founder of Vierra’s International Kempo schools of self-defense (Kajukembo System). He has trained in martial arts for over 40 years and was inducted in the Kajukembo hall of fame in 2013. They sold Hard Knocks Gym to one of their star student’s 2x professional Arizona boxing champion, Arturo Ortega. Our goal is to teach discipline, core values and fitness to our members. We welcome people of all fitness levels. While we know some people have aspirations to be a professional fighter, most people want a fun work out. If you want to improve your fitness level, lose weight or compete, we can help you. The owner (Arturo Ortega) a United States Marine has a background in USA wrestling, Kickboxing, power lifting, marathons, personal training and professional boxing.  We offer classes for those who are new or need a little help. To help start you off right sign up for a free 30 minute instructional class or a 3 day trial membership.