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Event: Withnall Trophy

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Opponent Rating Result
Raymond F Rhodes 87 ½ - ½
Nicholas PA Wright 104 0 - 1
David J Barker 102 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-36 = (293 + 400 * (0 - 1)) / 3)

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