Event: Doncaster League

PDF Excel

Opponent	Rating	Result
Zak Tomlinson	1825	½ - ½
Zak Tomlinson	1827	½ - ½
Peter JE Ackley	2142	0 - 1
Zak Tomlinson	1813	1 - 0
Sean O McDonald	1912	½ - ½
A David Smart	1562	1 - 0
A David Smart	1559	½ - ½

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

1863 = (12640 + 400 * (2 - 1)) / 7)