Event: Parkinson

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Opponent Rating Result
John K Holliday 141 1 - 0
Simon Johnson 141 ½ - ½
Mike J Barnett 135 ½ - ½
Christopher J Edwards 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

272 = (417 + 400 * (1 - 0)) / 3)

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