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.

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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

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Sensei Yong Hultin

  • 4th Degree Black Belt

  • 1st Degree Black Belt in Kenshin Ryu Kobudo

  • Five time National Kata Champion

  • Certified USA NKF Referee

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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

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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

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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