Event: U1800 Cup

PDF Excel

Opponent	Rating	Result
Mark Heffer	0	0 - 1
Dominic Douse	1350	0 - 1
Piotr Dolewka	1510	½ - ½

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

687 = (2860 + 400 * (0 - 2)) / 3)