When does the referee stop a Muay Thai fight?
B · Beginner · Scoring and results · 5 of 5The referee stops a fight when an athlete is taking too much punishment (RSCS), is injured (RSCI), or is made defenceless by a hard head or body strike (RSCH, RSCB). It also ends when an athlete reaches the count limit, for Elite athletes three counts in a round or four in the fight. A knockout is failing to rise by ten.
How it works
- RSCS: safety, when an athlete is in danger.
- RSCI: injury; the referee may consult the doctor for up to 1 minute.
- RSCH or RSCB: a hard head or body strike leaves the athlete defenceless.
- Count limit, Elite and U24: three in a round or four in the contest.
- Count limit, U18 and older masters: two in a round or three in all.
- Count limit, U16 and younger: two in the contest.
- KOH or KOB: knocked out by a head or body strike.
- Doctor's advice: the referee must follow it.
The glossary has the referee stops contest, the compulsory count limit, the knockout (Muay Thai), the knockdown (Muay Thai), the head injury suspension and the referee (Muay Thai).
Tricky cases
An athlete is outclassed but not hurt. Is that RSCH?
No. RSCH is only for hard head strikes leaving an athlete defenceless.
An accidental injury in the last round of a gold medal bout. Who wins?
The leader on points from the earlier rounds.
Do counts from slips count towards the limit?
No. Only counts caused by a Muay Thai strike.
Can seconds come into the ring when the doctor is called?
No. Only the referee and doctor.
Why the rule exists
Stoppages put athlete safety ahead of the result. Count limits stop athletes being knocked down again and again.
Where it differs
| Where | What changes | Source |
|---|---|---|
| Elite, U24, Masters 35+ | Three counts a round, four in all | 30.2.5 |
| U18, Masters 40+ and 45+ | Two a round, three in all | 30.2.5 |
| U8 to U16 | Two in all | 30.2.5 |
From the rule book
IFMA, Rules & Regulations for International Competition, version 3.057, rules 26.4, 30.2, 30.3 and 33. Checked 14 October 2026. Official document: the IFMA Rules & Regulations, version 3.057.