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Kids and Adults Martial Arts Classes in Cowra

Kumiai Ryu Martial Arts System (KRMAS) offers martial arts classes for the whole family.

With dedicated kids classes teaching fundamental skills, all of our programs have a focus on respect, discipline and realistic, effective self defence that will ensure you stay safe, have fun, and get fit. With Ladies only classes available, there’s something for everyone!

Our purpose-built facility, including gym for members, provides classes 5 days a week taught by experienced, Government Accredited Instructors.

BOOK your Introductory Lesson NOW, and take your first step to your brand new life TODAY!

Includes 2 weeks unlimited class + a Karate uniform OR Pair of Boxing Gloves (each valued at $60.00)
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Dojo License Holder

Shidoin David Simpson


  • Began Martial Arts training in 1978
  • Began training with KRMAS in 2001 and took over the running of the Cowra Dojo in 2007.
  • 3rd Degree Black Belt in Karate
  • Black Badge in Muay Thai
  • Blue Belt in Judo
  • Level 1 Government Accredited Martial Arts Coach
  • NSW Combat Sports Authority Amateur Corner Official and Trainer.
  • AMAC Australia Squad Member competing in New Zealand in 2015 and 2017
  • AMAC Australia Squad Assistant Coach 2017 – Coach in Charge Yokohama Japan 2017
  • Trained at the world famous Sityodtong Muay Thai Camp in Thailand in 2015, 2016, 2018, 2019 and 2020
  • Trained in Xi’an China in August 2018 with the Chinese National Sanda Team
  • Trained in Singapore in 2019 with Evolve MMA

View our Cowra Dojo


Friendly, professional, and supportive staff. Great facility with the best equipment. Wonderful for teaching the children discipline and independence. Great for fitness. Terrific self defense.

Great set up. Awesome instructors. I always look forward to my classes

Very proud to say my son attends this dojo and we consider it our family too,a great place to build confidence, great friendships and life skills. We have always been made feel welcome and the parents are amazing to all the kids and their families too, they are always helpful and a warm friendly place to be. Shidoin you are a great teacher to your students and a great role model to our children and our town.

Great gym. Excellent staff and equipment. Keep fit and increase your discipline and skill

Includes 2 weeks unlimited class + a Karate uniform OR Pair of Boxing Gloves (each valued at $60.00
Contact us
17 Kollas Drive
Cowra NSW
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