Event: St Andrews Club Championship

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Opponent Rating Result
Steve King 109 1 - 0
Michael A Pollard 129 1 - 0
David G Mills 136 ½ - ½
Andrew D Bettley 153 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

232 = (527 + 400 * (2 - 1)) / 4)

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