Event: B&DCL Div 5

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Opponent Rating Result
Derek Jones 93 0 - 1
Stephen Bailey 67 ½ - ½
Derek Chaffey 53 0 - 1
David Pawley 71 0 - 1
Paul Trowbridge 66 ½ - ½
Samuel (Sam) Walker 41 0 - 1
Derek Jones 93 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-102 = (484 + 400 * (1 - 4)) / 7)

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