Event: B&DCL Div 4

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Opponent Rating Result
David Arorash 115 ½ - ½
Stephen Disney 132 1 - 0
Richard W Quin 118 0 - 1
Ron Salinger 109 ½ - ½
Andrew Manson 105 0 - 1
Nicholas B Stout 133 ½ - ½
Stephen Disney 132 ½ - ½
Krzysztof Itrich 114 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

20 = (958 + 400 * (1 - 3)) / 8)

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