You are hereInstructors


Jon Santos
Head Instructor

Jon Santos is a Black Belt in Brazilian Jiu Jitsu under Cesar Gracie he is also from the original 1995 Gracie systems Team. With over 23 years of experience, Jon has won many awards and competitions including four Gracie Opens (1st Place) and multiple other gold and silver medals in championships around Northern California. He enjoys competing, teaching, and coaching students and fighters in Brazilian Jiu Jitsu (BJJ) and Mixed Martial Arts (MMA).

Caleb Mitchell
MMA/Jiu Jitsu Instructor

Caleb Mitchell is professional MMA fighter and a black belt in Brazilian Jiu Jitsu under Cesar Gracie. He has a professional MMA record of 7-4. Caleb is a veteran of MMA, having his first fight over 18 years ago. He has fought in many prestigious promotions, including IFC, WEC, Shooto and WAR.

Dom Hoskins
Jiu Jitsu Instructor

Dom is a BJJ black belt and world class grappler. Dom received his black belt from Rodrigo Medeiros at BJJ Revolution, where he was also an instructor. Dom has competed in high level BJJ matches all over the world, including many IBJJF competitions, SubCon, EPIC, FIVE, Abu Dhabi, NAGA, and Fight to Win matches.

Joe Kropschot
MMA/Muay Thai/Jiu Jitsu Instructor

Joe is the number one ranked amateur middleweight in California in MMA. He holds a Brown belt in Bazilian Jiu Jitsu under Jon Santos. He currently holds the CAMO middleweight belt as well as the Conquer Fighting & Bay Area Middleweight Amateur Belt, with an MMA record of 5-0 Now going Pro. Joe also competes in many BJJ promotions, including NAGA, Fight to Win, and many IBJJF competitions.

Bret Bergmark
MMA/Muay Thai/Jiu Jitsu Instructor

Bret Bergmark is professional MMA fighter and a brown belt in Brazilian Jiu Jitsu under Cesar Gracie. He has a professional MMA record of 9-1-1. Bret is a veteran of many prestigious MMA promotions, including Strikeforce, WEC and Pancrase.

Jay 'JJ Machine' Santos
Jiu Jitsu Instructor

Jay Santos is a purple belt. Jay started training Jiu Jitsu with Ralph and Cesar Gracie over 21 years ago. He holds multiple gold and silver medals from the U.S. Open & the Gracie Open. Jay brings a high level technical game to his teaching.