Event: Dudley Townshend Trophy

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Opponent Rating Result
John P Donovan 92 1 - 0
David Grant 0 0 - 1
Philip C Maybury 132 ½ - ½
Alexander Jarvis 124 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

87 = (348 + 400 * (1 - 1)) / 4)

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