Event: Ipswich Chess Club Championship

PDF Excel

Opponent	Rating	Result
Piotr Dolewka	1616	1 - 0
Simon Riley	1702	½ - ½
Angus Irving	1792	0 - 1

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

1703 = (5110 + 400 * (1 - 1)) / 3)