Firstly it is important to note that the professional and amateur fights are scored differently; professional fights are scored using what is called a "ten point 'must' system" and amateur bouts are scored using a "twenty point 'must' system". There are also more fundamental differences in the scoring used in the professional and amateur sports, so the article will first explore scoring in the professional ring and then note any differences in the amateur system.

Professional Fights
Wonchai, considered by many to be one of the best referees at Radjadamnern stadium, uses the analogy of a marathon race to explain the scoring in professional MuayThai. He explains that although one boxer may begin strongly and dominate early in the fight, it's the finish that is important and a boxer behind early can be overtaken. Unlike amateur fights and international boxing or kickboxing, professional fights are judged as a whole and rounds don't have equal emphasis, emphasis is given to a fighter finishing strongest over the last three rounds. Round one is generally scored 10:10 in a five round contest, although judges make a mental note of the boxer who edged the round for later reference. This is usually the case unless one boxer has very clearly dominated that round with a knockdown, eight-count or the use of a number of very good scoring techniques

The second round in a five round contest can also be scored 10:10, if it is deemed to be a close round, or if the boxer who was behind in round one wins by a small margin. Rounds three, four and five are the most important rounds in determining the fight's result. Clear decisions are therefore made for these rounds. In indecisive rounds, or where the fight "swings" from one boxer to the next, the mental notes made in the first, or first and second rounds are used to help determine the outcome. Again, it is important to understand that the whole fight is judged to decide the outcome of a fight. If a fighter gets knocked down by a concussive blow or takes a count at any time during the fight, they will lose two points (10:8) on all judges score cards. If the knocked down fighter otherwise dominated the round or fought back strongly after the knock down they would only lose the round by one point (10:9).

The winner of the fight on an individual judge's score card will be awarded the greatest number of points. It is usual practice in scoring professional contests in Thailand for a judge to avoid awarding a total score of 50 points for one boxer; the maximum score for a fight usually being 49 points (although it is possible for a fighter to score 50). This means where there is a very clear difference between fighters, the fight is usually scored 49:47 and fights that are closer are scored 49:48. It is usual for judges to make notes during a fight and complete the scoring for rounds after the fight has finished. This is not the case in championship bouts in Thailand where score cards are collected after each round.

Amateur Fights
Amateur bouts are competed over four two minute rounds. In amateur bouts, unlike scoring in professional fights, each round is scored equally and is equally important. It is possible for a fighter to win an amateur bout and lose the final two rounds; this is extremely unlikely to happen in a professional fight. Most rounds in amateur bouts are scored 20:19. Only one point is deducted for a knockdown and not two as in