PLEASE READ
This page contains very important information pertaining to the upcoming US OPEN Muaythai tournament. If you’re a coach, parent or athlete, please read the ENTIRE page, thank you.
EQUIPMENT
LIVE q&a and orientation
WEIGHT CLASS TRANSFER
Involuntary Transfer means The US Open will change the athlete’s Weight Division or Experience Class to meet the needs of the Tournament. Involuntary transfers do not incur fees. An involuntary transfer usually occurs usually when an athlete needs to be moved out of an empty bracket.
Voluntary Transfer means that the athlete elects to change their Weight Division or Experience Class. The US Open will disapprove voluntary transfers if doing so would negatively affect the tournament’s bracketing.
Transfer Fees:
Within 7 days of Weigh-in: $45
Day of Weigh-in: $75
If you wish to transfer before Weigh-in, you must request it by submitting a support ticket.
BOOK YOUR HOTEL
There is no official US Open Muaythai Hotel. You are free to book any hotel or airbnb of your choice.
MEDICALS / BLOOD-WORK
– Blood Testing: Competitors age sixteen (16) and older must undergo a blood screening and be free from Hepatitis B, Hepatitis C, Human Immunodeficiency Virus (HIV). Testing frequency and other requirements may change depending on local laws or sanctioning rules.Please refer to the event announcements for specific requirements.
– All Athletes must have a full physical performed by an MD (No DO, PA, NP, Naturopaths.) MD MUST sign USMTA medical forms. See below for packet.
– All athletes (38) years of age and older must pass readiness testing and submit to the USMTA to compete by emailing masterbob1956@aol.com. Athletes must complete and provide results of a stress test administered by a licensed MD or DO. Additionally, there must be a clearance letter to compete as well as results of an electrocardiogram (EKG) that demonstrates normal cardiovascular function.
– Pregnancy Screening: All female athletes ages 16 and older must undergo a hCG urine pregnancy test. The US OPEN will offer the tests free of charge.
– Pre-Medical Screening: A qualified physician will examine and screen each competitor
prior to the weigh-in and will make a decision as to whether a competitor is physically fit to
compete in USO.
-Please download the medical forms and have them filled out with your physician visit.
MANDATORY: ALL MEDICAL PAPERWORK MUST BE PHYSICALLY PRINTED OUT. PLEASE BRING ORIGINAL COPIES. DIGITAL COPIES WILL NOT BE ACCEPTED BY THE SANCTIONING BODY.
WEIGH-INS AND MANDATORY ORIENTATION
Weigh-in will take place on Thursday March 27, 12pm – 8pm. Scheduled athletes will be permitted to weigh-in before 4pm, unscheduled athletes and walk-ups must wait until after 4pm!
The Mandatory Orientation Meeting will take place on Thursday March 27th at 9pm. All athletes and coaches must attend this meeting to receive the most up-to-date information about matters that will affect your participation.
SPECTATOR TICKETS
Spectators can purchase tickets in advance from the event website or in-person during competition days. We suggest to get a ticket online. There will be no cash accepted for tickets.
SITEMAP
SIAM FIGHTS LIVE:
PRO MUAYTHAI SHOW AT THE USOPEN!
Mark your calendars for the most spectacular Pro Muaythai show Arizona has ever seen. We are brining 8 of the best 145lb Pros in the world to compete for $25000 and a 8 MAN TOURNAMENT!!
We also have US OPEN Champions Christian Rodriquez and Bryce McDanial making their pro debut on the Siam Fights stage.
For our Main Event we have our first Siam Fights PRO WORLD TITLE. These athletes have both been on a tear in their respective countries and now will meet for an amazing 5 round title fight. Residing out of Philadelphia by way of Syria Ahmad Alatmah vs Romanian navies who resides in Madrid, Spain Cristian Bogdan.
Remember, this takes place at the SAME VENUE as the US Muaythai Open Championships. So if you’re planning on competing in the tournament, consider yourself lucky enough to have an opportunity to watch the top pros in the world compete on the big stage.
SCHEDULE
THURSDAY 3/27
12:00pm – 8:00pm Weigh-Ins
9:00pm – 10:00pm Mandatory orientation
10:00pm – 11:00pm bracketing
11:30pm – 12:00am Estimated time of bracket posting
FRIDAY 3/28
9:00am Elimination series begins (Fieldhouse C)
1:00pm Siam Fights LIVE Weight Ins at US Open Venue (Fieldhouse C)
SATURDAY 3/29
9:00am Elimination series begins (Fieldhouse C)
12:30pm Wai Kru Competition (Fieldhouse C)
3:00pm End of US Open Ends Semi Finals (Fieldhouse C)
6:00pm Doors Open: Siam Fights LIVE (Pickleball Stadium)
7:00pm Fights Start: Siam Fights LIVE Grand Prix (Pickleball Stadium)
SUNDAY 3/30
8:00am 2nd weigh-ins begins (Fieldhouse C)
9:00am HARD STOP second weigh-ins (Fieldhouse C)
10:15am Finals begins (Fieldhouse C)
LONE BRACKETS
At bracket consolidation, we have brackets that only have one person. If you know anyone that could fill the bracket you US Open will COMP your registration fee in an effort to fill the bracket.
Email Kara if you know someone who can fill one of these brackets:
kara@siamfights.com
8-10 years M 0-3 fights 55.1-60.0lb 1
8-10 years M 4-9 fights 65.1-70.0lb 1
8-10 years M 0-3 fights 75.1-80.0lb 1
8-10 years F 4-9 fights 60.1-65.0lb 1
8-10 years F 0-3 fights 65.1-70.0lb 1
8-10 years F 0-3 fights 80.1-85.0lb 1
8-10 years F 0-3 fights 60.1-65.0lb 1
8-10 years M +10 fights 55.1-60.0lb 1
11-12 years F 0-3 fights 70.1-75.0lb 1
11-12 years F +10 fights 85.1-90.0lb 1
11-12 years M 0-3 fights 60.1-65.0lb 1
11-12 years F +10 fights 95.1-100.0lb 1
11-12 years F 0-3 fights 110.1-115.0lb 1
11-12 years M 0-3 fights 80.1-85.0lb 1
11-12 years M +10 fights 75.1-80.0lb 1
11-12 years M 4-9 fights 80.1-85.0lb 1
11-12 years F 4-9 fights 100.1-105.0lb 1
13-14 years F 4-9 fights 100.1-105.0lb 1
13-14 years F 4-9 fights 110.1-115.0lb 1
13-14 years M 4-9 fights 125.1-130.0lb 1
13-14 years F +10 fights 100.1-105.0lb 1
13-14 years M 0-3 fights 85.1-90.0lb 1
13-14 years F +10 fights 115.1-120.0lb 1
13-14 years M 0-3 fights 120.1-125.0lb 1
15-17 years M 0-3 fights 120.1-125.0lb 1
15-17 years M 0-3 fights 115.1-120.0lb 1
15-17 years M 0-3 fights 90.0-95.0lb 1
15-17 years F 4-9 fights 110.1-115.0lb 1
15-17 years F 4-9 fights 155.1-160.0lb 1
15-17 years F 0-3 fights 175.1-180.0lb 1
15-17 years F 4-9 fights 160.1-165.0lb 1
15-17 years F 4-9 fights 140.1-145.0lb 1
15-17 years M 4-9 fights 120.1-125.0lb 1
15-17 years M 0-3 fights 170.1-175.0lb 1
15-17 years M 0-3 fights 135.1-140.0lb 1
15-17 years M 4-9 fights 145.1-150.0lb 1
15-17 years M +10 fights 100.1-105.0lb 1
15-17 years M 0-3 fights 155.1-160.0lb 1
15-17 years M 0-3 fights 165.1-170.0lb 1
15-17 years M +10 fights 145.1-150.0lb 1
18-39 years M 4-9 fights 115.1-120.0lb 1
18-39 years M 4-9 fights 165.1-170.0lb 1
18-39 years M 4-9 fights 175.1-180.0lb 1
18-39 years M 0-3 fights 170.1-175.0lb 1
18-39 years M +10 fights 120.1-125.0lb 1
18-39 years F +10 fights 105.1-110.0lb 1
18-39 years M 4-9 fights 185.1-190.0lb 1
18-39 years F 0-3 fights 165.1-170.0lb 1
18-39 years F +10 fights 125.1-130.0lb 1
18-39 years F 4-9 fights 100.1-105.0lb 1
18-39 years F 4-9 fights 125.1-130.0lb 1
18-39 years F 4-9 fights 115.1-120.0lb 1
40+ years M 0-3 fights +200.1lb 1
40+ years F 4-9 fights 115.1-120.0lb 1
40+ years M 0-3 fights 180.1-185.0lb 1
40+ years M 0-3 fights 140.1-145.0lb 1
40+ years M 4-9 fights 185.1-190.0lb 1
40+ years M 0-3 fights 165.1-170.0lb 1
40+ years F 0-3 fights 130.1-135.0lb 1
Updated Code of Conduct
The US Open Code of Conduct is applicable to all participants, officials, staff, volunteers, contractors, vendors, and agents of the US Open. It provides the definitions of expected conduct, disciplinary authority, prohibited conduct, and outlines the procedures through which disciplinary hearings are set, sanctions determined, and appeals heard.
Amended Rule: 2nd Weigh-in
If an athlete fails to make weight at the second weigh-in, the bout may only continue with the consent of both opponents and the weight discrepancy between both athletes is less than five (5) lbs (2.27 kg). In this circumstance, the athlete who failed to make weight will forfeit one (1) point as a penalty for failing to make weight.
WAI KRU COMPETITION
Thai Heritage Association of Arizona will be judging our first ever Wai Kru Competition!! $200 cash prize per division! Winners will be based on traditional technique, creativity and traditional clothing.
NOT A SEMINAR, IT’S A COLLECTIVE!
Take your knowledge and training to the next level at the Muay Thai Combine, a unique and revolutionary knowledge and skills development course designed by and for passionate people like you.
fall 2025 championships registration open
Take your knowledge and training to the next level at the Muay Thai Combine, a unique and revolutionary knowledge and skills development course designed by and for passionate people like you.