Event: Haslemere Trophy

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Opponent Rating Result
Robert S Pigeon 1652 1 - 0
Zac Welling 1467 0 - 1
Robert S Pigeon 1652 1 - 0
Zac Welling 1467 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1660 = (6238 + 400 * (2 - 1)) / 4)

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