Event: Division One

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Opponent	Rating	Result
Daniel Lindner	204	½ - ½
Robert F Willmoth	205	0 - 1
Ayman Hammam	199	½ - ½
David J Grant	203	0 - 1
Robert S Eames	206	½ - ½
Richard Black	187	½ - ½
Thomas Villiers	206	0 - 1
Isaac B Sanders	236	1 - 0
Nicholas P Walker	202	0 - 1

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

72 = (1848 + 400 * (1 - 4)) / 9)