The Mind Sports Olympiad Tie-Break System to be used:
A tie-break is a situation where two or more players (pairs or teams) have the same score and are in a position to win a medal or title. The MSO tie-break rules apply.
All tie-breaks will be agreed in the office with the Chief Arbiter or a director, neither of whom will be involved as a participant in the particular event.
The rules below will be applied for two player games:
1. Head to Head results between the players involved. This will only apply if one player has beaten all others in the tie-break, or one player has lost to all others in the tie break.
2. Points spread from all rounds, ignoring the players best result.
Please note that none of these steps are reapplied. (e.g. – if one player is eliminated in head to head, then rather than reapplying head to head, the remaining tiebreak is decided by point spread and then Sonneborn-Berger.) After step 3, unseparated players will share medals.
The rules below will be applied for multi-player games:
1. The board played on in the final round (i.e. A player from the top board is placed ahead of anyone on a lower board, if they have the same tournament points)
2. Result in the final round
3. Victory Points scored in all rounds/points percentage (of winner) in all rounds
4. Most Wins (followed by most seconds etc.)
5. Head to head
6. Buchholz (removing top and bottom 2 opponents)
For the Pentamind, the tie-break will be the next Pentamind score (i.e. the 6th best result) will be used as a tiebreak; the secondary tiebreak will be the 7th best Pentamind score; the third tiebreak will be use the 8th best scores.