Event: Hammersmith Sledgehammer Cup

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Opponent	Rating	Result
Paul van Kan	1586	1 - 0
Jon Mather	1567	1 - 0
Ljubomir Koncar	0	1 - 0

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

1451 = (3153 + 400 * (3 - 0)) / 3)