Round-robin is used for Olympic Kumite competition and otherwise for competitions with a very limited number of participants. This is a form of competition where all the Competitors in a pool all meet each other in order to determine the winners.

The variation of the round-robin system used by WKF entail the use of two separate pools independently completing the cycle of round-robin with their pool. WKF is using this format as qualification for the medal matches where the winner of each pool will meet the runner-up of the other pool for the semi-finals.

Should there be an odd number of participants (due to forfeiture or injury) that place will be considered as a bye for the Competitors for the bouts that do not take place. Should this happen during the competition itself — any bouts already fought against the Competitor not completing the round-robin should be considered a bye for the previous opponents.

The winner and runners-up of each pool is determined by the most won bouts by counting wins as two pints each, a draw as 1 point — and a loss as zero.

The winners of the semi-finals will then go on the final where they compete for gold and silver while the two losers of the semi-finals both win bronze medals.

The requirement for seeding in round-robin competition is as follows:

• For Olympic competition nr. 1 to nr. 4. in the Olympic Standing are put in different pools.
• For other competitions (including Continental Games using round-robin) the two Competitors with the highest WKF Ranking the day before the competition are put in different pools

In cases where there is a tie between 2 or more Competitors, having the same number of total points, the criteria below will be applied in the specified order. This means, if a winner is found after one of the criteria, the following criteria will not have to be applied.

1. Winner(s) of the bout(s) between the 2 or more relevant Competitors
2. Higher number of total scores obtained in favour through all bouts
3. Lower number of total scores got against through all bouts
4. Higher number of Ippons in favour through all bouts
5. Lower number of Ippons against through all bouts
6. Higher number of Waza-Aris in favour through all bouts
7. Lower number of Waza-Aris against through all bouts
8. Higher number of Yukos in favour through all bouts
9. Lower number of Yukos against through all bouts
10 a. In Olympic competition: The highest Olympic standing per the day, as defined in the Qualification System
10 b. In any other competition: The winner of an additional bout to break the tie

In case of 3 or more athletes when we have the first 2 athletes that go to the semi-finals, the tie-resolution has to be considered from the very beginning.

If a contestant is injured during the Elimination Round and cannot continue, the scores of completed or current bouts remain unchanged. The results of all bouts (completed, current and pending) are declared NIL (results nullified), and its points forfeited.

It is possible for a contestant to be disqualified from a bout and continue the competition. In this case, his opponent wins that bout by either by 4-0 or for any score obtained exceeding 4 points (i.e 5-0, 6-0 etc.) and other results remain. It is possible for a contestant to be disqualified from the entire competition: the scores of completed or current bouts remain unchanged. The results of all bouts (completed, current and pending) are declared NIL (results nullified), and its points forfeited.

If an already qualified contestant is disqualified for misconduct at the end of the Elimination round (Shikkaku):
• The semifinal opponent will access to the final by «walkover»
• The two other contestants will compete in the other Semifinal
• Only one bronze medal will be awarded

I. The following figure illustrates the competition format for a competition with ten participants:

II. The following figure illustrates the format for a competition with eight participants: