2025 SPRING MUAY THAI CHAMPIONSHIPS

Open to all Amateur and Professional Muay Thai Athletes, US and International Federations Worldwide

March 27-30, 2025
Arizona Athletic Grounds, Mesa, Arizona

2025 FALL MUAY THAI CHAMPIONSHIPS

REGISTRATION NOW OPEN!
Open to all Amateur and Professional Muay Thai Athletes, US and International Federations Worldwide

Nov 20-23, 2025
Arizona Athletic Grounds, Mesa, Arizona

Resources

Resources for Athletes

Rules

The US Open Official Rules ensure fairness and promote safety. 

Learn More

Support

Questions?  Check out our FAQs.  If you still need help, please submit a trouble ticket to reach our support team.

Learn More

Subscribe

Stay Up To Date With The Latest Updates and Event Info

Sponsors

special Thanks to our sponsors

“A great & well run event! It is extremely difficult to manage a crowd of that size with that many variables, but the folks at USMTO and Siam did it very well. Weigh ins, medicals, etc. were done very quickly compared to other events. The brackets & bout orders were done the night before which gave our team enough time to plan logistics for the next day.”

Emily Ann Nielsen, Revolution Muay Thai – Athlete

Start Registration Now

Register to Compete!

Start by going to your preferred event page, and begin the registration process.