Event: B&DCL Div 2

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Opponent Rating Result
Andrew Manson 122 1 - 0
Tim Joyce 131 1 - 0
Peter A Manning 131 ½ - ½
David Arorash 126 ½ - ½
John E Harris 119 ½ - ½
Harold A Buckfield 121 ½ - ½
Peter A Manning 131 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

240 = (881 + 400 * (2 - 0)) / 7)

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