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Our Team

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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Master Instructor Carl Hultin

  • 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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Chief Instructor Eric Sevilla

  • 5th 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

  • CDC HEADS UP certified in concussion training for Youth Sports Coaches

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Senior Instructor 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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Senior Instructor 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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Senior Instructor William Fuentes

  • 5th Degree Black Belt

  • 1st Degree Black Belt in Kenshin Ryu Kobudo

  • USA NKF Referee

  • Instructor for City of Pleasant Hill Karate Program

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Instructor Laura Abello

  • 2nd Degree Black Belt

  • Certified USA NKF referee

  • Administrator

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Instructor Johanna Abello

  • 2nd Degree Black Belt

  • 1st Degree Black Belt Weapons

  • Instructor for the City of San Ramon Karate Program

  • Elite Team Coach

  • Certified Personal Trainer

  • NASM Certified Stretching and Flexibility Specialist

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Instructor Adrianna Villesis

  • 2nd Degree Black Belt

  • 3x National Kata Champion

  • 3x Junior International Cup Kata Champion

  • US Open Kata Champion

Drop in for a free, introductory class

21001 San Ramon Valley Blvd, A7, San Ramon CA 94583 

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