Anaheim Coaches

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KRU JONATHAN YU - Owner and Head Coach Anaheim 

With over 20 years of dedicated teaching in Muay Thai, Kru Jonathan  brings passion, discipline, and expertise to every class. Having trained under respected masters, cornered  over 1000 bouts  and trained many world champions and champions in Muay Thai and MMA.  He understands the importance of technique, respect, and mental strength in martial arts.

He was the assistant Coach for USA and Australian national team for the Muay Thai Tournament in Thailand 2009

MTIA Coach of the year 2009 

Assistant instructor on Master Toddys TUFF GIRL a reality TV Muay Thai show  in 2010

Trained the actors and was on Netflix KINGDOM a critically acclaimed  mma drama series in 2014 

Jonathan is certified Master under Muay Thai International Association (MTIA) which is under the Minister of Education Thailand.  He is also certified Master Instructor under World Professional Muay Thai Association (WPMTA) under the Sports Authority of Thailand. WPMTA was created by the Royal Sports Authority of Thailand to teach and hold authentic  Muay Thai bouts all over the world.  They follow a strict guideline from the Government of Thailand and they are the only association back up by the Sports Authority of Thailand.  

Jonathan has been instructing students of all ages and skill levels for 20 years and he focuses on building confidence, physical fitness, and self-defense skills in a supportive and motivating environment.

Whether you are a beginner looking to learn the basics or an advanced student aiming to refine your skills, Jonathan is committed to guiding you on your martial arts journey with patience and dedication.

NICHOLAS LOPEZ (Anaheim Kids Head Coach)

Nick is a passionate and dedicated Kids Martial Arts instructor with a love for helping children build confidence, discipline, and physical fitness. With 6 years of experience and being the PKB Champion and Cali Kids 150 pound champion. He understands the unique energy and creativity children bring to every class and can help unlock your child's potential.

Nick believes martial arts is more than just learning self-defense—it’s about developing important life skills such as respect, focus, and teamwork in a fun and supportive environment. He tailor each lesson to engage young minds and bodies, ensuring every child feels encouraged and motivated to reach their full potential.

Coach Leo is a dedicated and accomplished fighter with a passion for teaching and inspiring the next generation of martial artists. With 9 years of experience in the ring, he has demonstrated exceptional skill, discipline, and determination in Muay Thai

Throughout his fighting career, Coach Leo has competed in numerous events, securing titles such as 140 Lbs. Cali Muay Thai Champion, 145 Lbs. Royal Combat Champion, a Two-time 130 Lbs. Cali Muay Thai champion, 130 Lbs. IAMTF State Champion, 130 Lbs. IKF Southern California Champion, and 130 Lbs. IKF West Coast Champion.

His technical expertise, combined with a strategic mindset, has earned him respect among peers and fans alike.

As an instructor, Coach Leo  is deeply committed to helping students develop both physically and mentally. He focuses on building strong fundamentals, fostering confidence, and promoting a safe, supportive training environment. He Follows Kru Jon  teaching philosophy emphasizes discipline, respect, and continuous improvement, ensuring that every student reaches their full potential.

Whether in the gym or the competition arena, Coach Leo brings energy, expertise, and passion to everything he does, making him an inspiring mentor and formidable fighter.