Event: Larry Guard League

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Opponent	Rating	Result
Gerard T'hart	1701	0 - 1
Christopher D Peacock	1465	0 - 1
T Klaus Tekniepe	1349	1 - 0
Joseph Day	1574	0 - 1
Paul Green	1364	1 - 0
Christopher D Peacock	1465	0 - 1
Gerard T'hart	1701	1 - 0
T Klaus Tekniepe	1349	1 - 0
Joseph Day	1574	0 - 1
Jake Martin	1890	0 - 1
Paul Green	1364	1 - 0

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

1491 = (16796 + 400 * (5 - 6)) / 11)