walter michalowski, sityodtong coach, muay thai coachWalter “Sleeper” Michalowski – Owner/Head Coach

WALTER “SLEEPER” MICHALOWSKI is a respected professional trainer and a well known fighter with 8 Championship Belts.  Originally from a small town in the Midwest, the former Pro X.M.T.C. United States Muay Thai Middleweight Champion is also a Schutzhund K-9 dog trainer, a virtuoso guitar player and an avid motorcyclist enthusiast.


Residing in the Los Angeles area he began training in Bruce Lee’s Jeet Kune Do Concepts and later became a staff instructor under famed instructor Richard Bustillo, one of Bruce Lee’s original students.  It was training at the well-known IMB Academy in Torrance, CA where Walter met his first Muay Thai instructor Nanfa Serchadeco, a Rajadamnern Stadium Champion and an Olympic Bronze Medalist in Boxing.  Walter embraced his training with the same enthusiasm and dedication he developed as a consummate musician.  His work ethic enabled him to excel in the sport of Muay Thai and soon after began his competitive career as a fighter.


june-castro-michalowskiJune Castro-Michalowski – Owner/Coach

June Castro Michalowski is a world-renowned martial artist and a certified fitness professional.  She was a columnist for Unique Publications and has been featured in many industry magazines and covers including Black Belt Magazine and Inside Karate.  She is a 9th Degree Black Belt in Shaolin Kenpo Karate, a certified instructor in Muay Thai and in Jeet Kune Do Concepts.


Although she began training in the martial arts at the age of 4, formal training in the art of Kenpo Karate began when she was a few years older under the strict guidance of her father, Martial Arts Hall of Fame recipient and Museum of Martial Arts inductee, Great Grandmaster Ralph Castro.  Today, women training and competing in the martial arts is not that uncommon, however, 40 years ago is was not the norm.


June is also 1 of 7 children and growing up as a real Karate Kid made for a very unique childhood.  The responsibilities of her parents owning and operating a martial arts school left little time for extra curricular activities or social events.  Afterschool events included training, taking naps on the hardwood benches and doing homework with the roar of training in the background.


bjj los angeles, brazilian jiu-jitsuAntonio Fernando Castillo – Brazilian Jiu Jitsu (BJJ) Coach

Fernando has been with Sityodtong LA since 2010. He has trained in Brazilian Jiu-Jitsu for over 14 years. Fernando has also trained and competed in Brazil. He received his purple belt from Ralph Gracie and is a black belt under Wander Braga. He is also the founder of Forza 300 Fightwear.








Josh Aragon – Assistant Coach

  • Trained in Muay Thai and Boxing
  • Active Muay Thai Competitor (Pro)
  • Trained in Thailand
  • I.A.M.T.F. California Middleweight Champion
  • WBC Middleweight Champion


Mike Q – Strength and Conditioning Coach

  • Master’s Degree in Exercise Physiology
  • Master’s Degree in Nutrition
  • Trained in Brazilian Jiu Jitsu
  • Active BJJ Competitor
  • Gold Medalist at the North American Brazilian Jiu Jitsu Tournament