542 W Katella Ave, Orange, California 92867

Point of Impact MMA Instructors

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YOKO “GODZILLA” HAMAMURA

Founder & Head Instructor


Former amateur and professional fighter (Mixed Martial Arts)
20+ years of martial arts experience
Muay Thai (World Thai Boxing Association & Ajarn Bryan Popejoy)
Black ...

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JONATHAN EUSEBIO

Founder


30+ years of martial arts experience
Former amatuer fighter (40+ fights)
Jeet Kune Do, Kali-Silat, Savate, and Muay Thai (Guro Dan Inosanto)
Brown Belt in Brazilian Jiu Jitsu ...

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DANIEL HERNANDEZ

Founder


30+ years of martial arts experience
20+ years of competitive Tae Kwon Do experience
Former Junior Olympian in Tae Kwon Do
Stunt coordinator & performer
Credits include: ...

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Kaitlynn Valeros

Manager & Coach


Homegrown martial artist under POIMMA (Muay Thai & BJJ)
Brazilian Jiu Jitsu Blue Belt
Former competitive gymnastics coach (15+ years gymnastics/tumbling experience)
2x ...

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Jeff Custer

Coach


20 years martial arts experience (Muay Thai, JKD, Filipino Martial Arts -- Inosanto-Lacoste FCS)
Associate Instructor in FMA (Guro Joe Ristrom)
Apprentice Instructor JKD ...

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Junior Kinder Instructor in Orange

Junior Kinder

Coach

10+ Years Martial Arts Experience Enjoys weightlifting, running, hiking, and staying healthy Passionate about teaching martial arts and helping students achieve their goals ...

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Patrick Gagliano

Coach


10 years of Martial Arts Experience
Former wrestler at top program Servite High School (Class of 2011)
Brazilian Jiu Jitsu Purple Belt
Full-Time Accountant ...

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Reggie Guerrero

Coach


Former amateur boxer and Muay Thai & MMA fighter
Purple Belt in Brazilian Jiu Jitsu
17 years of martial arts experience
Advocate of active lifestyle (even beyond martial ...

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Alec Imamoto

Coach


10+ years of experience coaching children
Martial Arts tricker
Blue Belt in Brazilian Jiu Jitsu
Former gymnast &LA Clippers trampoline dunker
Stuntman ...

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Byron Mancilla

Coach


8 years mixed martial arts experience
Brazilian Jiu Jitsu Brown Belt and competitor
5 years Muay Thai experience (amateur fighter)
Weight lifts for endurance, resistance, and ...

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Donna Myers

Coach


Muay Thai Full Instructor Level under World Thai Boxing Association (Received black arm band under Ajarn Daniel Sullivan in 2014 & Associate Level in 2022 under Ajarn Chai) ...

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Katie Ragen

Coach


15+ years martial arts experience
Women's & Children's Self Defense instructor
Certified yoga instructor
Former amateur jiu jitsu competitor with winning record ...

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Joe Ristrom

Coach


Master's Degree in Education
7th Degree Black Belt in Danzan Ryu Jujitsu (instructor, Roger Medlen)
National Champion AAU Jujitsu Forms
7th Degree Black Belt in Chung do Kwan ...

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Nina Schatz Instructor in Orange

Nina Schatz

Front Desk


BS in Environmental Science from University of California Riverside
Enjoys weight training ...

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Scott Sink

Coach


Apprentice Instructor of FMA at POIMMA (Guro Joe Ristrom)
Apprentice Instructor in Dirty Boxing (Guro Daniel Sullivan)
Level 4 in Filipino Combative Systems (Tuhon Ray ...

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Louis Tasselli

Coach


Second Degree Black Belt in Brazilian Jiu Jitsu
20+ years BJJ experience
World Master Championship Gold Medalist (IBJJF)
Former bodybuilder
Certified personal trainer ...

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Henok Tefera

Coach


8 years Muay Thai experience
Amateur Muay Thai/kickboxing fighter & BJJ competitor
Sports enthusiast (played baseball, basketball, golf, and soccer & ran cross-country) ...

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