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
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.
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.
You MUST have a full PHYSICAL performed by a MD for it to be accepted by to commission. In addition, ALL BLOOD WORK MUST be interpreted by an MD. If you failed to have this done, you can schedule to have these done at weigh ins for a FEE.
WEIGH-INS AND MANDATORY ORIENTATION
Weigh-in will take place on Thursday November 20, 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 November 20th 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
SCHEDULE
THURSDAY 11/20
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 11/21
9:00am Elimination series begins starting with D CLASS BOUTS (Fieldhouse C)
SATURDAY 11/22
9:00am Elimination series begins (Fieldhouse C)
SUNDAY 11/23
7:00am 2nd weigh-ins begins (Fieldhouse C)
8:00am HARD STOP second weigh-ins (Fieldhouse C)
10:00am 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 US Open will COMP your registration fee in an effort to fill the bracket.
Email Gabby if you know someone who can fill one of these brackets:
gabby@siamfights.com
Open:
US Open Amateur Fall 2025 8-10 years M 0-5 fights 50.1-55.0lb
US Open Amateur Fall 2025 8-10 years M 0-5 fights 80.1-85.0lb
US Open Amateur Fall 2025 8-10 years M 0-5 fights 90.1-95.0lb
US Open Amateur Fall 2025 8-10 years M 0-5 fights 120.1-125.0lb
US Open Amateur Fall 2025 8-10 years F 0-5 fights 70.1-75.0lb
US Open Amateur Fall 2025 8-10 years F 0-5 fights 75.1-80.0lb
US Open Amateur Fall 2025 11-12 years M +13 fights 70.1-75.0lb
US Open Amateur Fall 2025 11-12 years M 6-12 fights 130.1-135.0lb
US Open Amateur Fall 2025 11-12 years M +13 fights 130.1-135.0lb
US Open Amateur Fall 2025 11-12 years F 6-12 fights 120.1-125.0lb
US Open Amateur Fall 2025 13-14 years M 0-5 fights 90.1-95.0lb
US Open Amateur Fall 2025 13-14 years M 6-12 fights 90.1-95.0lb
US Open Amateur Fall 2025 13-14 years M +13 fights 120.1-125.0lb
US Open Amateur Fall 2025 13-14 years F 6-12 fights 85.1-90.0lb
US Open Amateur Fall 2025 13-14 years F 13+ fights 95.1-100.0lb
US Open Amateur Fall 2025 15-17 years M 0-5 fights 100.1-105.0lb
US Open Amateur Fall 2025 15-17 years M 6-12 fights 105.1-110.0lb
US Open Amateur Fall 2025 15-17 years M 0-5 fights 115.1-120.0lb
US Open Amateur Fall 2025 15-17 years M +13 fights 125.1-130.0lb
US Open Amateur Fall 2025 18-39 years F +13 fights 110.1-115.0lb
US Open Amateur Fall 2025 40+ years M 0-5 fights 150.1-155.0lb
US Open Amateur Fall 2025 40+ years M 0-5 fights 185.1-190.0lb
US Open Amateur Fall 2025 40+ years F 0-5 fights 130.1-135.0lb
US Open Amateur Fall 2025 40+ years F 6-12 fights 140.1-145.0lb
ELITE:
US Open Elite Fall 2025 18+ years M 140.1-145.0lb
Development Class:
US Open Development Class Fall 2025 8-10 years M 0-2 fights 80.1-85.0lb
US Open Development Class Fall 2025 15-17 years M 0-2 fights 120.1-125.0lb
US Open Development Class Fall 2025 18-39 years M 0-2 fights 130.1-135.0lb
US Open Development Class Fall 2025 18-39 years M 0-2 fights 170.1-175.0lb
US Open Development Class Fall 2025 18-39 years F 0-2 fights 130.1-135.0lb
US Open Development Class Fall 2025 40+ years F 0-2 fights 115.1-120.0lb
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.
Spring 2026 championships registration open
The US OPEN Spring will take place the a Arizona Athletic Grounds on April 4th & 5th. This will be a 2 day Tournament where there will only be 1 weigh-in
