USMTA logo Copyright USMTA 1990- 2008



Regulations pertaining to both International and National events


General competition, the ring shall be as follows:

1.) The ring must be of International standard, for Amateur size, 20 x 20 feet (6.10 x 6.10  meters) International Professional; 24 x 24 feet (7.30 x 7.30 meters). Measured from  the inner edge of the rope and a height above the floor of at least 3 feet, but not more  than 4 feet.

2.) The ring shall be surrounded tightly with 3 ropes of a least 1.5 inches in diameter,  attached to the corner posts, 18 inches, 36 inches and 54 inches above the ring floor,  respectively. The ropes must be padded with a soft and smooth material. At all four  corners, the knots must be padded with a soft material. The ropes for each side must  be held together by two strong pieces of 1 - 15 inch wide material with an equal space  from each other. The pieces of material must be tightly tied to hold the ropes firmly.

3.) The ring floor must be safely constructed at a level that is without any obstruction, with  an extension of 20 inches outside of the ropes. The ring floor is covered with soft cloth, rubber or any stretched material of at least 1.5 inches thick with a top cover of canvas, tightly stretched. The ring floor must be smooth and firmly secured to the ring sides.

4.) The four corners of the ring must be in good condition and harmless to the fighters. There must be 4 corner posts of 4-5 inches in diameter and 58 inches above the floor.

5.) Two ladders of at least 3 feet wide must be provided in the two opposite corners, suitable for the boxers and seconds to step up and down from the ring. Another ladder is to be provided for the referee and doctors at one of the neutral corners.

6.)Two plastic boxes are to be provided at the two neutral corners for the referee to dispose of used cotton, rubber gloves or tissues.


Most times gloves the USMTA will abide by the regulations accorded by the State Athletic Commissions.

The boxers must put on standard boxing gloves of a minimum of 8 ounces (227 grams). For the divisions from Light Welterweight (63.5 Kg) up , they must wear standard 10 ounce gloves (284 grams). It is not permitted to change the glove shape or to rub the glove in order to spread the inside padding from its original shape. The boxers must use the provided and approved gloves it is not permitted to put on their personal gloves. The glove laces must be tied on the wrist of the back of the hand with a piece of 1.5 inch plaster tape covering the wrist. Both fighter’s gloves and hand wraps will be inspected by two certified officers appointed to carry on this duty until the boxers are ready to step into the ring.


Standard U.S. Boxing procedures should apply to hand-wraps:

It is possible to use surgeon’s standard bandages of 2 inches wide and not longer than 8 feet (2.5 meters) or the piece of cloth of WELPEAU, not longer than 2 meters (6 feet 7 inches) each, to wrap the boxer’s hands. It is not permitted to use other kinds or to use any form of rubber glue based tape or any other kind of plaster tapes to wrap the boxer’s hands. The boxers may use a single plaster tape of 3 inches long (7.6cm) 1 inch wide (2.5 cm) to secure the hand bandage above the wrist, but not to wrap around the knuckles. For International competition the organizers or promoters must provide hand wraps or bandages. All the boxers must use new hand bandages which are provided. All hand wraps Must be checked by a USMTA official prior to gloves being placed on fighter.


The Thai boxers must wear the standard Thai boxers attire:

1.) The boxer must wear the traditional pair of Thai boxing shorts. The referee should make sure their toe nails must be short and neatly cut. They should wear the Thai headband or (Monkon) for paying homage before the bout. A Kwrang Wrang (arm band) may be put on around the upper arm, biceps.

2.) They may be bare foot but can wear approved ankle supporters on both ankles. No supporters are permitted to be put on knees or the lower legs. Boxers who do not meet the uniform standard will be disciplined. Penalty for non-compliance to the uniform rule, the referee will order the offending boxer to leave the ring until he corrects all faults properly. In the case of irregular gloves or uniforms, the referee will stop the bout to have them fixed or changed.

3.) The boxers must wear standard groin guards and a gum shield. The boxer who intentionally loses his gum shield, will be cautioned first and penalized of a point deduction for the second intentional loss or he may be disqualified. The gum shield will be cleaned and replaced after the referee stops the bout meanwhile the seconds are not permitted to talk to the boxer.

4.) The boxer must put on the head guard.

5.) No chain, necklace or any kind of jewelry shall be worn during the event.

6.) Boxers must be neatly shaven, mustaches are allowed if neatly trimmed.


The ring must be equipped as follows:

Three chairs for the boxers and seconds, 2 bottles or jugs of water, 2 plastic cups and 2 water buckets. Two round stools with large trays for the boxers between rounds. Besides a table and chairs set up for the officials there shall be a gong or bell with hammer, one or two stop watches, a boxing time marker or clock score sheets, a box to keep the score sheets, a set of marker pens, a set first aid or medical kits and a stretcher must be provided. There should also be a score board, two sets of gloves, two head guards, four groin protectors, four body guards (two for the red corner and two for the blue corner). A good MC announcement equipment with back-up.


Medical Examination:

In the scheduled weigh-in time, the contestants must have their physical examination by the appointed medical doctor registered Nurse or qualified EMS Person. The State if required my appoint a doctor to approve each fighter is in healthy condition before the weigh-in.


1.) All contestants must be ready to weigh-in 4-6  hours prior to the event. The controlling officials, appointed by the Association Executive members are authorized to extend the weigh-in if necessary. If the contest is unavoidably delayed, the bout shall not begin less than three (3) hours after the weigh-in. If the bout has to begin less than 3 hours after the weigh-in, the officials must secure approval from the Medical Committee to go ahead with the first scheduled bout.

(2.) In international tournament or competition, the weight of the first day’s weigh-in is considered as the contestant’s weight division for the tournament, however he must be weighed-in every contest day to assure his weight is consistent. The contestant is only allowed to compete in his weight division, however, it is possible for the contestant’s representatives to place him in another weight division, either upper or lower according to his weight if there is no other member of his team in that division and the weigh-in time has not expired.

(3.) In each weigh-in day, the contestant is only allowed to weigh-in on Officially approved scales only once. The scaled weight is accepted when the contestant is stripped downto his under wear and the weight is metrically measured. The scales may be electronic. The read weight is final.


A) Group drawing must be done after the physical examination and weigh-in. It shall be done in the presence of team representatives. This is to make sure that there is no contestant to compete twice while another has no bout at all. The first round contestants will be drawn before a draw for those who have a bye. However, the contestant without any bouts in the competition will not receive any medal in an International tournament.

B) The "Bye" system must be provided for the first round in order for a reduction of the second round of bouts into 4, 8, 16, or 32. Those who have a bye in the first round must first fight in the second round. If the bye number of the first round is even, the bye contestant will compete in the second round in accordance with the draw. The first round contestant with a bye cannot get a ‘walk-over’ in the second round. No contestant can have two consecutive ‘walk-overs’. If the matter occurs, there must be a new draw among the rest of the contestants of that round who do not have a bye or ‘walk-over’, in the previous round.

C) The new draw is done as such; for the match number arrangement in the program, it shall proceed from the lower weight divisions up to the higher weight divisions. In each round, the match is to start from the lightest weight to the heaviest weight. In the next round, the procedure shall follow the first round and so on.


Normally, the competition consists of 3 rounds of 3 minutes each with 1 minute resting period. For an advanced agreement, the competition may consist of 4 rounds of 3 minutes  with 1 minute rest period. Any official stop for caution, point deduction, dress or equipment adjustment is not counted in the 3 minutes of the competition. The rest period must be 1 (one) full minute. Before the first round, every boxer should perform the  "Wai Kru" according to the customs of Muay Thai. It is not permitted to perform any other form of martial art ritual that is not customary to the art of Muay Thai. The ritual  should be accompanied by the traditional Thai fight music.


A boxer may have one second and one assistant. They must obey the following regulations;

1.) Only the second and his assistant can be on the ring floor, but only one may enter the ring area (inside the rope area) during the rest period. They must wear the proper dress as according to their position.

2.) During the bout, neither can be near the ring edges. Before each bout, they must clear the boxer’s stool, towel, bucket, etc., from the ring floor.

3.) While on duty, the second must have a towel and a sponge ready for the boxer. The second may act on behalf of his boxer when he sees that his boxer is outclassed or

he feels he is receiving too much punishment by throwing the towel or sponge into the ring, but not during the referee’s counting action.

4.) The Chairman of the Referee and Judge Committee shall call a meeting among the referees, judges and the boxer’s seconds to inform them that the boxer who breaks the rules may be penalized of a point deduction or disqualified.

5.) The seconds and assistants shall not give advice or encourage their boxer during the bout. If they break this rule, they may be given a caution or discharged from their duties. Their boxer may be cautioned or disqualified because of their fault. The seconds or assistants or officials who verbally or signally encourage the spectators during the bout to advise or support the boxers shall be discharged from their duties for the rest of that competition. If the second or assistant is discharged from duty, he will not be allowed to be a second or an assistant for the rest of that competition. After being discharged, he has to leave the stadium for the rest of that competition time. If the second or assistant, from the beginning to the final competition day, had been discharged from duty TWICE, that second or assistant will be disqualified for the rest of the tournament.


A.) Fo Championships: There must be one referee approved by the AMTJRA (American Muay Thai Judge & Referee Association) and registered by the USMTA to control the ring, but not to score for the boxers. There must be 3 qualified judges, 2 Officials  and 1 Senior official. The referees or judges must avoid other duties such as team  managers, coaches or trainers, or seconds for the contestants.

C.) Discipline Control: The USMTA Representatives are authorized to discharge the referees or judges from the official lists, either temporarily or permanently, After the Jury Committee finds their responsibilities ineffective or below standards.

D.) For the Referee Substitution: The Time Keeper must stop the bout in case the active referee cannot carry on his duty. An appointed Referee will then take over the duty.

F.) Qualification for the AMTJRA Referees and Judges & Officials

1) Completion of the clinics and tests for the referees and judges and officials at least 5 matches and they have been enlisted in the registration of their Association at least 2 years. They must have a medical Certification Approval from the Association appointed doctor as fit and healthy to take the responsibilities. They must submit evidence of experiences, health, fitness, age, 2-year duties, and amateur status. A good and clean record of past and present responsibilities.


A.) Their priority of duties is to safeguard the boxers. Their duties are to judge in the ring. Their uniform is to be dark blue trousers, a grey polo shirt, and black shoes or light ankle-high shoes without heels and a pair of surgeon gloves.

The referees must:

1. Keep the rules and justice strictly.

2. Control the bout at all times.

3. Safeguard the weaker boxer from undue injuries.

4. Inspect the boxer’s gloves and uniform.

5. Make decisions with 3 orders:

"YOOT" = to stop the fight.

"CHOK" = to start the fight.

"YAK" = to separate the boxers from each other after a hold-on. After a "YAK" the boxers must step back before they fight again without the order of "CHOK".

6. The referee shall give an appropriate signal or gesture to tell the boxer’s fault.

7. After the final round, the referee shall collect the score sheets from all the judges and examine them before handing them to the Senior Official.

8. The referee shall not identify the winner by raising the boxer’s hand or by other means before the announcement of the winner. Only then, shall the referee raise the winner’s hand.

9. When the referee disqualifies a boxer or stops the contest, he must notify the Senior Official that he disqualifies a boxer or gives reasons for stopping the contest in order for the Chairman to notify for public announcement.

C.) Caution of Point Deduction Procedure: If a boxer breaks the rules, but his fault is not for disqualification, the referee shall stop the fight and give him a caution of a Point deduction. The caution, must be clear and understandable to the boxer. The referee shall give a hand signal to all judges for having given a caution, with a finger pointing to the offending boxer. After the caution, the referee shall order "CHOK". After 3 cautions of a point deduction, that boxer will be disqualified.

D.) A Warning Procedure: The referee may give a warning to the boxer. It is an advice or to tell the boxer to be careful or to prevent him from doing mistakes which may break the rule, but he may find an appropriate moment to warn the boxer.

E.) The Referee’s Physical Examination: Before an International Tournament, the referee must have a physical examination for an approval of fitness for his duty. The referee is not allowed to wear eye-glasses on duty, except contact lens. The referee must be in the meeting with the Medical Committee before every bout.

F.) The Referee’s Power:

1.) Stop the contest when finding that one of the boxers is out-classed by the other, or he is out-pointed or is one-sided.

2.) Stop the contest when seeing that the boxer is too seriously injured to continue.

3.) Stop the contest when seeing that the boxer intentionally withhold the fight in this case, either the boxer or both may be disqualified.

4.) Warn the boxer or stop the fight for a caution with a point deduction because of a fault or other reason for a fair fight or not abiding to the rules.

5.) Immediately disqualify the boxer who disobeys an order, violently injures or offends the referee.

6.) Discharge the boxer’s second or assistant who breaks the rules of his duties and disqualify the boxer if the second or assistant disobeys the referee’s orders.

7.) Disqualify the boxer who commits a foul with or without a caution of a point deduction.

8.) Stop the count for a fall if the other boxer hesitates or does not go to a neutral corner.

9.) Interpret the rules as provided or make decisions in any situation that is not mentioned in the rules and regulations.


A. Duties:

1.) Each judge shall make decisions for each bout independently, but accordingto the rules.

2.) During the bout, the judge shall not discuss the matter with any judge or person, except the referee. If necessary, during the interval or rest period, he may inform the incident to the referee, such as a misconduct of the second, a loose rope, or anything else that the referee may have over-looked.

3.) Immediately after each round, the judge shall score for each boxer on the score sheet.

4.) After the match, the judge shall compile the score to identify the winner and sign the score sheet. The decision will be notified to the public by the MC announcer.

5.) The judge shall remain in his seat until the result has been announced.

B. Uniform: The judge shall be in dark trousers and Navy blue or Black shirt, with proper association emblem.

2.4 Judges signatures and decision of the fight on the sheets. The Chairman will declare the winner from the score sheets by a majority votes and inform the announcer for public announcement.

3. ) After each session of duties, the Senior Officials shall meet the following day or discuss via other means of communication to discuss the performances of the Referee’s and Judges. If there are cases that are questionable, the the officials shall report to the Association. They shall also require the Referees and Judges of such cases to discuss the matters. A DVD, video copy of the event should be provided to the  association for review of bouts.

4.) The report shall be in writing concerning such performances.

5.) In some situations which delay the bout, the Senior Official will have authority to stop the bout until the situations are appropriate. The Senior Official must act promptly towards such situations.They shall discuss the matters with the Referee and Judges for decision making.

6.) The contestant who severely breaks the rules, especially unsportsmanlike conduct, the Senior official shall report such cases to the Association in order to disqualify the contestant and the Association may not award him the medal/belt etc., he or she may earn.

C. To Over-Rule the Referees and/or the Judges: The cases are as follows;

1.) When found that the Judges have made clearly a decision against the Rules and Regulations. A video may be used to make it clear.

2.) If it is clearly found that there are at least 2 Judges who have made mistakes in scoring and such mistakes lead to a contrary decision.

D. For the Benefit of Responsibilities: The Senior Official shall not act as a Referee or Judge for the International Tournaments when they are Officials for such tournaments.

E. For Neutral Responsibilities: For International Tournament, the officials shall comprise of representatives from different countries.

F. For the Protest: The protest must be done by a fighters coach along with a $50 Dollar deposit. If the protest is effective, the protestor will receive the money back. If after checking and reviewing the tape or DVD the results is correct, the protestor will receive a letter with the reviews and reason, and the protest deposit shall be forfeited to the association


A. Duties

1.) His or her main duty is to keep time for each round, number of rounds and time during the rest period which must be 1(one) full minute.

2.) Ten seconds before each round, the time keeper must signal for the seconds and assistants to clear off the ring by bell with an order of "Clear off the ring or seconds out".

3.) The time keeper shall signal the beginning of the round and the end of the round by gong or bell sound.

4.) The time keeper shall adjust the time which is stopped for any delay or the referee’s order to stop it.

5.) The time keeper must keep up the right time for a count with his stop watch or clock.

B. The Time Keeper’s Seat The time keeper will be seated besides the ring with the announcer to do the announcement of the match results or of any other information concerned.


Types of Decisions

1.) Winning by knockout: If the boxer is knocked down for the full 10 second count, his opponent is winner by knockout.

2.) Winning by Points: After the match of three rounds, the boxer with majority decisions from the judges is the winner. If both boxers are seriously injured or counted out and unable to continue, the judges shall examine the scores compiled for each boxer before the accidental stop. The boxer with most points is the winner.

3.) Winning By Referee Stopping the Contest: The referee will stop the contest as follows;

A. Out-Class: If the referee sees that one boxer is outclassing the other or out-pointing the other by a wide margin, the referee shall stop the contest and declare that boxer the winner.

B. Injury: If the referee sees that one boxer is injured or having other physical problems that would make him unable to continue the fight, he shall stop the contest and declare his opponent the winner of that event. The decision making is the referee’s right or he may consult the ring doctor. After consultation, he may follow the doctor’s advice. The ring doctor has the right to stop the bout if he finds reasonable causes to stop it. He first informs the Senior official  to signal for stopping the bout.

C. In the final match of a tournament or in a single bout, if the boxer is accidentally injured after the first round, the judges shall examine all compiled scores before the accident. The boxer with more points is declared the winner. For Championships or other tournaments, if the injury accidentally occurs in the first round, the boxer without injury is the winner. For single bouts, if the injury accidentally occurs in the first round, the decision may be declared a draw.

D. Being Counted: When a boxer has been given three (3) standing eight (8) counts in one round. (For juniors, the referee stops it after the boxer has been counted two (2) times in one round or three (3) times in a span of the bout).

E. Being Severely Punished:

The Referee shall stop the bout immediately when one boxer is severely punished and he is unable to protect himself.

4.) Winning By Withdrawal:

When a boxer intentionally withdraws from the contest because of injury or other reasons or he is unable to continue after the rest period, his opponent is declared the winner.

5.) Winning by Disqualification:

When a boxer is disqualified, his opponent is the winner. If both boxers are disqualified, the result will be announced. A disqualified boxer will not be awarded any reward, medal, trophy, honor award or classification.

6.) No Decision: The fight is stopped as follows;

A. The ring is damaged, bad weather, rowdiness or trouble from the spectators, or any other reasons which suspends the competition.

B. Either boxer or both withhold the fight or insult each other after being warned, or does not fight to his capacity or either boxer intentionally commits a foul. The decision will be the same as No. 5.

c. Either boxer's coach, corner men or manager cause trouble or insult  either the officials, the opponent after being warned. The decision will be the same as No. 5.

7.) Winning By Walk-Over: (Tournaments & Competition)

In competition or tournaments, when one boxer is ready in the ring but his opponent is absent after being called for, and the bell is rang with a three (3) minute waiting. The referee shall declare the present boxer as winning by walkover. The referee shall inform all judges to inscribe in the score sheets and collect the score sheets. He shall call the boxer to the middle of . the ring and raise the boxer’s hand to declare the result after the announcement.

8.) A Draw:

This is only for a single elimination tournament match or a friendly match between two countries or clubs. It may be settled for a draw if the majority decisions are a draw. Or if an accidental injury occurs in the first round, a draw may be decided.


The Scoring System must follow the following criteria:

1.) Thai Boxing actions must be done by punching, kicking, kneeing, and elbowing.

A. Thai Boxing actions to be scored in each round must be compiled by the judges in accordance with the Muay Thai system, e.g. a hit, a punch, a strike, a step, an elbow, etc. to the opponent without an unfair action. All are counted as scores. For a close fight, the boxer with the better fighting style (by Thai Boxing techniques) with punching, kicking, kneeing, and elbowing, is in favor after the close fight.

B. Actions without points are as follows:1.) A boxing action that breaks any style, or 2.) A punch to the opponent’s arms or legs as his protective style, or 3.) No force applied from the body.

2.) Fouls:

A. In each round of the bout, the judges shall consider the importance of fouls.They may deduct a point as they observe a foul even though the referee may overlook such a foul.

B. When the referee cautions one boxer, the judges may score a point for the other boxer. When doing so, the judges shall mark ( / ) in the space besides the score of the offending boxer to indicate their actions. In case they do not approve the caution, they shall mark ( x ) in the space beside the score of the offending boxer.

C. If the referee does not see the foul, but the judges see it clearly and decide to deduct a point, they shall evaluate the gravity or the seriousness of the foul and deduct a point accordingly, even though the referee disagrees. The judges shall indicate the action by marking (D) in the space besides the offending boxer’s name with an indication of his fault.

3.) Scoring Procedure:

A. After the end of each round, it is scored with the 20 point system, without a fraction of a point. The better boxer (more skillful) will get 20 points and his opponent will get less accordingly. If both are equal, they will get 20 points equally.

B. Criteria for Scoring are as Follows: Three good punches will get 1 point. In the case of a round ending with only one or two punches to score, not three, it is allowed to score the 1 point. (Good punches mean the usage of punching, kicking, kneeing and elbowing).

C. After the bout if it is found that the points compiled as per criteria are equal, the judges shall determine the winner from:

1.) The aggressiveness of the boxers or if both are the same, the better style or formwill win.

2.) The better defensive boxer (guarding, holding-off, pull-off, step-off, fake-off as for protections, etc.) to avoid the opponent’s attack. (It means that the boxer can protect himself from his opponent’s attacks and he can avoid such violent blows).

3.) For all contests, there shall be an announcement of the winner. (For a single elimination match, there may be a draw)

D. A fall will not get any special point.

(17) FOULS

A. Warning, Point Deduction and Disqualification If the contestants disobey the referee, break the rules, are unsportsmanlike, or commit a foul, then the referee has the right to warn or caution the offender with a  point deduction, or disqualify the offender without any warning depending on the seriousness of the foul. He may allow the offender to continue the fight. Only 2 cautions or point deductions are allowed for each offender. The third caution will disqualify the offender immediately. The boxer is responsibility for his second’s fouls.

B. Types of Fouls

The faults classified as fouls are as follows:

1.) A bite, an eye gouge, press or scratch, a spit on an opponent or a head butt.

2.) A throw on an opponent, a back breaking maneuver, an intentional fall-over, a judo or wrestling throw to an opponent.

3.) A neck lock or arm lock.

4.) Stepping on one of the ropes while fighting, elbowing, striking, etc. while unfair usage of the rope.

5.) Going after a fallen opponent.

6.) Intentionally falling to get an advantage.

7.) Abusive language while boxing.

8.) Intentionally striking an opponent on the groin guard.

10.) Fight after a "YAK" (Separate) without stepping back.

11.) Aggressive actions towards the referee.

12.) Intentionally losing the gum shield.

13.) The seconds intentionally encourage their boxer or will not be seated.

C . Referee Consulting the Judges: If the referee believes a foul has happened but cannot be observed, he may consult with the judge.

(18) FALLS

1.) A boxer who touches the ring floor with other parts of his body except his feet or collapse on the ropes helplessly, or being hit while outside the ropes, or being violently and helplessly hit, but not falling or collapsing on the ropes, is defined as having a fall.

2.) After a fall, the referee shall start counting while the opponent steps away to a neutral corner indicated by the referee. After the fallen boxer gets up and the referee orders "CHOK", (Fight) they may continue the fight. If the opponent does not go to the neutral corner as ordered by the referee, the referee shall stop the count. After the boxer returns to the neutral corner the referee will continue counting.

3.) After a fall, the referee starts a count from 1-10 loudly, with a rhythm of 1 second apart. He shall give a finger signal for every second. In order for the boxer to know that he has counted "one" the referee shall pause one second after the fall to count "one".

4.) If the boxer manages to get up before the count of "Ten"(10) and he is ready to fight, but the count is not "eight" (8) yet, the referee shall continue the count to "eight" (8) before ordering to box. However after the referee’s count of "ten"(10), the fight is over. The referee shall declare the fallen boxer as losing by knockout.

5.) If both boxers fall, the referee shall count as long as there is a fallen boxer. If both boxers are counted out at the count of "ten" the points compiled to that moment will decide the winner. (Exception of any special agreement). In the case of a tangle of arms and legs during the fall and the boxers try to get up, the referee may delay the count and may help to break the tangle.

6.) If the fallen boxer gets up before the count of "ten", but he falls down again, the referee shall continue the count.

7.) A boxer who cannot continue the fight after the rest period, may be counted out or not, depending on the referee’s judgment. When the boxer has been counted out three

(3) times in one round or four (4) times in the bout span, the referee shall stop the contest. (For juniors twice in one round or three (3) times in the bout, the referee shall stop the contest).


A. The Boxer is Unconscious: If the boxer is unconscious, only the referee and the ring doctor are allowed in the ring. Others may be allowed if the doctor asks for special assistance.

B. Medical Assistance is needed if the boxer is knocked-out because of a blow or violent blow and the referee stops the contest, he must be checked by the ring doctor immediately. He must be sent home or to a suitable place by the responsible Official.

C. Recovery Period

1.) In the case of a knockout by a blow or violent blow to the head: The knocked out boxer will not be allowed to fight or to have sparring practice for a minimum of four (4) weeks after the accident, or a period of time designated by the State.

2.) In the case of a knockout within the period of three (3) months, the boxer will not be allowed to fight or spar for three (3) months after the accident, or a period of time designated by the State,

3.) In the case of three (3) knockouts within twelve (12) months, the boxer will not be allowed to fight or spar for or a period of time designated by the State,

D. Medical Approval After Recovery:

Before the boxer can return to the ring to fight again, after his recovery period, he must have a special check-up by a certified doctor and receive medical approval of a fit and healthy condition to be able to fight.

E. In the case of a head injury, the referee must inform the Senior Official and the judges in order for them to print on the boxers score sheet, "HEAD BLOW" if the boxer is unable to continue.

For these cases, the Thai boxers "Fighters Passport " will be printed with the boxer’s history.

(20) ADMINISTRATION OF DRUGS (Major competition/ International events)

A. Doping: The boxers are not allowed to use medicine or chemical substances other than his normal food in order to improve his physical fitness or gain advantage over his opponent.

B. Penalty: Any boxer or official who violates this rule will be disqualified or prohibited from competition by the Association. If required by the state; Any boxer who refuses to take a doping test that may be required  by the State, after the match and is discovered to have violated the state anti-doping regulations will be disqualified or prohibited from competition. Any official who encourages the boxer to commit such a fault will also be penalized.

C. A Usage of Anesthetic: The usage of any anesthetic is allowed only by the approval of the association.

D. Doping Substances: All of the doping substances listed by the U.S. Olympic Committee and may also be prohibited by the International Olympic Committee and the association . Substances may be added or removed by recommendation of the State.


A. A Medical Approval: The boxer who is not certified by a qualified doctor of the organizing Association will not be allowed to participate in an International Competition.

B. A Medical Approval Certificate: All boxers to participate abroad must have a Medical Approved Certificate signed by the authority to indicate that before leaving the country that they were fit and healthy with, no injury infection or disease or any other condition that might effect their boxing capacities in the country abroad. This certificate may be in the boxers record or identification card in accordance with their Association’s regulation. The Certificate must be shown before their physical examination at the time of weigh-in.

C. The Physical Examination Before the Bout: Before any bout, all boxers must have their physical examinations prior to the weigh-in.

D. The Boxer’s Prohibition: The boxer with bad eyesight, contact lenses, deafness or speech impediment or epilepsy will not be allowed to fight, or as restricted by the State.

E. A Cuts and Scratches: The boxer who has cuts, scratches, bruises on the face, or having any medical dressing will not be allowed to fight. However, it is up to the ring doctor on the day of the fight’s physical examination.

F. The appointed ring doctor must stay besides the ring in the designated area throughout been completed.

G. Whenever the doctor finds a serious injury , he shall notify the Senior Official to signal and stop the contest. He will step in the ring to check the injured boxer to verify the reason for the bout being stopped.


Before and after the bout, both Thai boxers shall touch gloves to declare Amateur sportsmanship and friendship fighting according to the rule. The glove touch should be performed before the first round, and after the result is announced.


1.) For an open International tournament, the contestants must be at least 17 years old, and not over 37 years old.

2). For a junior  tournament, the contestants must be at least 8 years old, and not over 10 years old.

-Class C: Ages 8 Years old to 10 Years old.

-Class B: Ages 11 Years old to 14 Years old.

-Class A: Ages 15 Years old to 17 Years old.

1. Rules and Standards

For full rules and standards please refer to all USMTA standards and practices. As required in USMTA sanction events. The following regulations apply to USMTA Jr. divisions

2. USMTA Jr. Division competitors’ age:

-beginning at 8 years old to 17 years old.

3. USMTA Jr. Division Classes:

4. Length of rounds:

-Class-C, Ages 8-10 will competing with three one minute rounds with a one minute rest between rounds. Title fights will be 5 one minute rounds with one minute rest between rounds    

-Class-B, Ages 11-14 will be competing with three 1.5 minute rounds with a one minute rest between. Title fights will be 5x 1.5 minute rounds with one minute breaks between rounds.  -Class-A, Ages 15-17 will be competing with three 2minute rounds with one minute rest between rounds.

 5. Protective Equipment

-Class-C. Ages 8-11 years old will be required to wear head gear, 16oz glove, shin & instep pad, Chest protectors, mouth guard, groin guards (boys & girls). -Class-B.  Ages 12-14 years old will be required to wear head gear, 16oz glove, shin & instep pad, mouth guard, groin guards (boys & girls).  -Class-A.  Ages 12-14 years old will be required to wear head gear, 16oz glove, shin & instep pad, mouth guard, groin guards (boys & girls).

Headgear may have cheek protection but cannot have nose or chin protection. Shin guards may be cloth, leather, or neoprene, and can pull on or fasten with  Velcro, or buckles.  Any metal clasps must be covered with tape. Junior fighters may use training hand wraps or gauze and tape. Tape must be one finger’s width back from knuckles.  All fighters must have wraps checked and signed by USMTA Representative before putting on fight gloves. Female fighters are required to wear rash guards.

Weight Classes

Jr. Atom weight        62& under
Jr. Fly weight            62.1 – 67
Jr. Bantam Weight   67.1 – 72
Jr. Feather Weight   72.1 – 77
Jr. Light Weight       77.1 – 82
Jr. Welter weight      82.1 – 87
Jr. Middle Weight     87.1 –92
Jr. Light Heavy         92.1 – 97
Jr. Light Cruiser       97.1 – 102
Jr. Heavy Weight     102.1 – 107

Over 105 lb see normal weight classes

     Weight Division                  Max. Weight

 1.  Mini Flyweight                   105 lbs (47.727 kg.)
 2.  Junior Flyweight                108 lbs (48.988 kg.)
 3.  Flyweight                            112 lbs (50.802 kg.)
 4.  Junior Bantamweight         115 lbs (52.163 kg.)
 5.  Bantamweight                    118 lbs (53.524 kg.)
 6.  Junior Featherweight         122 lbs (55.338 kg.)
 7.  Featherweight                    126 lbs (57.153 kg.)
 8.  Junior Lightweight             130 lbs (58.967 kg.)
 9.  Lightweight                        135 lbs (61.235 kg.)
 10. Junior Welterweight          140 lbs (63.503 kg.)
 11. Welterweight                     147 lbs (66.638 kg.)
 12. Junior Middleweight          154 lbs (69.853 kg.)
 13. Middleweight                     160 lbs (71.575 kg.)
 14. Super Middleweight          168 lbs (76.363 kg.)
 15. Light Heavyweight             175 lbs (79.379 kg.)
 16. Cruiserweight                    190 lbs (86.183 kg.)
 17. Heavyweight                      190 lbs+ (86.183 kg.+)
 18. Super Heavyweight            209 lbs+ (95 kg.+)


Any rule interpretation of any arising question during a bout not mentioned in the rules shall be decided by the Senior Official.


Anyone has the right to apply for the referee examination, however, to become a good referee is not easy as he/she may think. One must be intelligent, sensible, of good principles, and experience, appealing personality and of a professional and academic background. The following principles may be used as a guideline for good referees.

1.) Having appealing personality, good physical appearance, professional conduct and dress, both inside and outside of the venue.

2.) Having emotional stability.

3.) Being honest, fair, just and honorable.

4.) Having the courage to make a decision with lively and active movements, ready to judge without any fear.

5.) Use of common sense and proper flexibility along with judgment.

6.) Expressing ability and capacity to make the best decisions.

7.) Being firm and calm, understandable and open-minded from all critics.

8.) Being honest to the contestants and colleagues.

9.) Being honorable, withholding the contestant’s or trainer’s weak points from others.

10.) Having fair and justice for you judgment. If in doubt, use common sense. Keep close observations with the bout and make sure of what you are doing.

11.) Having knowledge and wisdom with careful and polite actions to manage a bout.

12.) Being active at all times during the bout.


1.) If you feel sick or are not ready, do not take the responsibility, but inform the organizing Committee in advance for your substitution.

2.) Referee should not take credit for the events they have officiated.

3.) Never accept less than the normal fee.

4.) Do not take all responsibilities single-handedly for payment.

5.) Do not take charge for one team particularly and very often others may misunderstand you as part of the team.

6.) Do not self-boast while on duty.

7.) If an active team coach, do not take the referee’s duty as it may appear suspicious to others.

8.) Do not talk with any team’s trainer after the bout.

9.) Never express opinions concerning the contest results with any team member or trainer.

10.) Do not expect any problems with the bout, control the game.

11.) Do not show any form of bias to any of the trainers, boxers or spectators.

12.) Do not explain any decisions made, even during the rest period.

13.) Avoid any gestures that may be misconstrued by the spectators, teams and officials

14.) A heavy blow may be legal, know the game and if necessary penalize fairly.

15.) Do not argue with the boxers, trainers or spectators.

16.) Always dress in the correct uniform.

17.) The referee is not to loose his temper, he must keep a cool head and ignore any comments from spectators, etc.

18.) Always keep a focus on the bout, never letting attention stray from the ring.

19.) Never discuss the rules, actions or other matters with the contestants or trainers.

20.) Ignoring any of these guidelines will be breaking the rules of referee professionalism.


1.) Always have a medical check-up, both before and during the competition season.

2.) Study the rules and regulations of the association thoroughly, practice the signal use until mastering it.

3.) Be ready to make decisions in crucial situations.

4.) Keep a record of your appointments.

5.) Participate in all meetings and seminars concerning the rules and regulations.

6.) Always make sure your uniform is neat and clean.

7.) Always arrive early at the venue to investigate the conditions e.g., low ceiling, lights, over-crowed stadium, etc.

8.) After putting on your uniform, take a rest for around 30 minutes.

9.) Explain to the competitors the rules and regulations clearly, repeat if necessary.

10.) Be firm and decisive, but polite and friendly.

11.) Never change a decision, your duty is vital from the start of the event to the finish.

12.) Respect the judges, they are your second eyes.

13.) If there is unsportsmanlike conduct between the fighters or the seconds, stop the bout with a warning or caution.

14.) Study both competitor's tactics to prevent unfair advantages.

15.) Be confident in your own decisions, use common sense, always give clear orders.


As a rule, all people concerned at the venue are looking for the referee. Both competitors, trainers included. The referee, then should not behave in such a manner that would put doubt in the minds of the participants or the audience.Guidelines which may Help the Referee:

1.) After arriving at the venue, conduct yourself as one of the best referees.

1.1) Be nice in personality and style and always appear neat and clean.

1.2) Be friendly and cheerful when communicating with other people. Hold back your discussions with the trainers and contestants.

1.3) Never allow anyone in your dressing room.

1.4) Lend assistance to colleagues if requested.

During the bout:

2.1) Never slouch or lounge on the ropes, always stand erect and alert.

2.2) When the Ram Muay ritual is being performed, stand in a neutral corner, always show respect to both contestants when they are performing this ritual. After the bout:

3.1) Do not wait for anyone to thank you or congratulate you after the event.

3.2) Do not wait around aimlessly, hurry back to your dressing room.

3.3) Get yourself dressed and leave for your hotel or the official quarters, never discuss the bouts with anyone. If reporters ask for interviews, you should do as follows:

1. ) Express your willingness to cooperate, if asked for your opinions or explanations, you  may say what has really happened. Discuss the matter to the main point with friendly manners.

2. ) Avoid discussing private or personal matters.

3.) Never be seen as a news seeker.

4.) Remember that even a scale can be tipped to either side and the referee’s symbol is the scale of justice.


Copyright © 1998 USMTA Inc.   All rights reserved. Revised: August 13, 2010