2025 Calgary Chess Challenge Tie Breaks

Playoff for first place only in case of a tie.  The playoff will be a two game match with a time control of: 3 2.  If 3 or more players are tied for 1st a single round robin with a time control of 3 2 will be held.

Swiss event: 

1. Head to head (if all those tied played each other).

2. Buchholz (sum of all scores of opponents).

3. Buchholz cut 1 (sum of all scores of opponents except the lowest point scorer).

4. Sonneborn-Berger (sum of all scores of opponents won against and half the scores of opponents drawn).

5. Most wins.

6. Most games with black.

Round Robin event:

1. Head to head (among those tied).

2. Sonneborn-Berger (sum of all scores of opponents won against and half the scores of opponents you drawn).

3. Koya system (total points scored against opponents who scored at least 50%).

4. Most wins.

5. Most games with black.