Event: Atkinson Cup

PDF Excel

Opponent	Rating	Result
Steve King	1465	1 - 0
Giles Dunn	1698	½ - ½
Steve Tomlinson	1428	1 - 0

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1797 = (4591 + 400 * (2 - 0)) / 3)