Event: St Andrews Club Championship

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Opponent Rating Result
David P Thrun 79 1 - 0
Robin A Edwards 120 0 - 1
Thomas L Hackett 134 1 - 0
Stephen Crow 150 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

221 = (483 + 400 * (2 - 1)) / 4)

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