Event: WMA Spring League Division 1

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Opponent	Rating	Result
Henrik Stepanyan	2372	0 - 1
Andrew P McCumiskey	0	0 - 1
Patrick D Reid	2035	0 - 1
Nigel S Towers	1884	1 - 0
John Pitcher	0	0 - 1
Matthew A Holmes	1787	0 - 1
Henrik Stepanyan	2372	0 - 1
Andrew P McCumiskey	0	0 - 1
Patrick D Reid	2035	1 - 0
Nigel S Towers	1884	½ - ½
John Pitcher	0	0 - 1
Matthew A Holmes	1787	0 - 1

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

1113 = (16156 + 400 * (2 - 9)) / 12)