Shihan Mark Cramer began his karate-do training in 1971. During these forty plus years he has trained and taught Isshin-Ryu and Goju Ryu being a member of the Seiwa Kai, the Japan Karate-do Federation (JKF) Goju Kai. Moreover, he has trained at the JKF Headquarters in Tokyo Seiwa Kai Headquarters in Omagari. He is also a USA National Karate-do Federation Certified Kumite Referee and Kata Judge. He is a former many times USA Karate National Champion.