Ken Gabrielson has an extensive history in martial arts. Ken is a “FULL Instructor” in Jeet Kune Do Concepts and the Filipino Martial arts under Paul Vunack. During the late 90’s Ken worked with Paul to teach hand to hand combat to the Navy SEALS in Virginia Beach Va. In 1993 Ken Received his Black Belt in Gracie Jiujitsu under Reylson Gracie. In 1995 he opened Combative Fighting Systems in Orange County Ca (first non-Brazilian BJJ Academy in the US). Ken trained many MMA fighters as well as BJJ competitors. In 2014 Ken moved to Colorado and opened Combative Fighting Systems (CFS) with his son’s Chris, Mike, and Kenny Jr. In 2020 Ken won IBJJF GI Pan AM’s and World Championships. In 2021 Ken won a World Championship in No-Gi. Ken is a member of the Brazilian Jiu-Jitsu’s “Dirty Dozen”, first 12 non-Brazilian students to receive a Black Belt in Brazilian Jiu-Jitsu. Ken is the first American to be promoted to Coral belt (RED and Black).