ONE Championship lists MMA, Muay Thai, kickboxing and submission grappling under distinct rule sets. The promotion name identifies the organiser. The discipline attached to the individual bout tells you its scheduled duration and how an unresolved contest can be judged.
Read the discipline beside the bout
ONE’s published rules give these scheduled durations before breaks. A world-title listing matters because the longer title format applies in three disciplines. Submission grappling uses the same ten-minute duration for ordinary and world-title bouts.
| Discipline | Ordinary bout | World-title bout |
|---|---|---|
| Mixed martial arts | Three five-minute rounds | Five five-minute rounds |
| Muay Thai | Three three-minute rounds | Five three-minute rounds |
| Kickboxing | Three three-minute rounds | Five three-minute rounds |
| Submission grappling | One ten-minute bout | One ten-minute bout |
Interpret the decision within that rule set
If an MMA bout reaches the judges, ONE’s judges evaluate the contest as a whole. For Muay Thai and kickboxing, its judges score individual rounds using the ten-point-must system. If you read a report that assigns each MMA round to a different athlete, that sequence alone cannot reproduce a ONE MMA decision. Look for the official result and the rules attached to the discipline.
The shared round length in the Muay Thai and kickboxing rows can help you identify how long a bout is scheduled to last. Keep the exact discipline as a separate field when you save the card because it also determines which rule section to open.
Find the correct portion of a joint listing
The November 2026 announcement pairs The Inner Circle 38 and ONE Friday Fights 178 at the same Bangkok venue. The former had a Muay Thai tournament quarterfinals label. The Friday Fights card included Muay Thai and MMA. Someone looking for a particular athlete should open the matching card portion and then read the discipline beside the matchup.
Save the event name and number, card portion, two athletes and discipline together. A search using only the venue and date may bring you to the other portion of the event.
Sources and review
- ONE Championship martial arts rules — ONE Championship
- ONE Friday Fights 178 card announcement — ONE Championship