Event: OTB Club Challenge Standard

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Opponent Rating Result
Jean L Mara 1134 1 - 0
Ray Benn 0 ½ - ½
Pete Meadows 1682 0 - 1
Alfie Green 1500 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

979 = (4316 + 400 * (1 - 2)) / 4)

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