Event: B&DCL Div 4

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Opponent Rating Result
Mike Rutter 129 ½ - ½
J Mike Davies 106 0 - 1
Andrew M Alderton 123 ½ - ½
Richard W Quin 117 0 - 1
Bryan Lose 100 ½ - ½
Bryan Lose 100 ½ - ½
Richard W Quin 117 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

56 = (792 + 400 * (1 - 2)) / 7)

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