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Buchholz is a Swiss-tournament tie-break that adds the final scores of a participant's opponents.

Buchholz Median-1 is a Buchholz variation that removes one least significant and one most significant contribution before summing the rest.

A tie-break that calculates Buchholz as if every paired game in the final round had ended in a draw.

Sonneborn-Berger is a tie-break that combines each opponent's final score with the points the player scored against that opponent.

The Koya system is a round-robin tie-break that adds points scored against participants who achieved at least 50% of the maximum possible tournament score.

A tie-break averaging the Buchholz scores of faced opponents to measure a second layer of schedule difficulty.