High Level Black belt instruction in downtown San Jose! Brazilian Jiu Jitsu, Judo and Wrestling. Come to our beautiful 4700 square foot facility located in the heart of downtown San Jose. Head instructor Alan "Gumby" Marques is co-founder of OntheMat.com / OTM and a black belt under Ralph Gracie. Teaching judo is Chuck Jefferson, former team captain of the SJSU Judo team and 2008 Olympic alternate. Wrestling coach is Scott Belzer who has worked with National teams in Iowa and Indiana.