Our Team

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Where the Passion Begins

Our incredible team is truly the heart of AABBA. It’s their dedication, passion and talent that keeps students invested in the learning process. Take a look below to learn more about the team.

Shihan Carl Hultin

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  • 7th Degree Black Belt

  • Hayashi-ha Shitoryu Karate-do

  • 3rd Degree Black Belt Kenshin Ryu

  • 2nd Degree Black Belt Yamanni Ryu Kobudo

  • Vice President USA National Karate Federation and Member Referee Council

  • World Karate Federation Judge

  • Certified Personal Trainer

Sensei Yong Hultin

  • 4th Degree Black Belt

  • 1st Degree Black Belt in Kenshin Ryu Kobudo

  • Five time National Kata Champion

  • Certified USA NKF Referee

Sensei Eric Sevilla

  • 4th Degree Black Belt

  • 1st Degree Black Belt Weapons

  • 8 Time National Kata Champion

  • 7 Time National Kumite Champion

  • Cross Training in Jujitsu

  • Elite Team Coach

Sensei Jonathan Chin

  • 4th Degree Black Belt

  • 1st Degree Black Belt Weapons

  • USANKF Official and Elite Team Coach

  • Instructor for the City of San Ramon Karate Program

Sensei William Fuentes

  • 4th Degree Black Belt

  • 1st Degree Black Belt in Kenshin Ryu Kobudo

  • USA NKF Referee

  • Instructor for City of Pleasant Hill Karate Program

The Academy also offers programs through the San Ramon and Pleasant Hill Community Center. Instruction is offered by Sensei Jonathan Chin, 4th degree black belt  and William Fuentes, 4th degree black belt.