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
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Hayashi-ha Shitoryu Karate-do
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3rd Degree Black Belt Kenshin Ryu
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2nd Degree Black Belt Yamanni Ryu Kobudo
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Vice President USA National Karate Federation and Member Referee Council
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World Karate Federation Judge
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Certified Personal Trainer

Sensei Yong Hultin
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4th Degree Black Belt
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1st Degree Black Belt in Kenshin Ryu Kobudo
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Five time National Kata Champion
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Certified USA NKF Referee

Sensei Eric Sevilla
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4th Degree Black Belt
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1st Degree Black Belt Weapons
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8 Time National Kata Champion
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7 Time National Kumite Champion
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Cross Training in Jujitsu
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Elite Team Coach

Sensei Jonathan Chin
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4th Degree Black Belt
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1st Degree Black Belt Weapons
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USANKF Official and Elite Team Coach
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Instructor for the City of San Ramon Karate Program

Sensei William Fuentes
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4th Degree Black Belt
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1st Degree Black Belt in Kenshin Ryu Kobudo
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USA NKF Referee
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Instructor for City of Pleasant Hill Karate Program