Event: DCL Div 2

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Opponent Rating Result
Julian C Cherryson 129 0 - 1
Alan J Tyler 134 ½ - ½
Ron Salinger 105 1 - 0
Richard W Quin 117 1 - 0
Paul Brackner 118 ½ - ½
Mark Dinmore 126 ½ - ½
Derek Mount 129 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

237 = (858 + 400 * (3 - 1)) / 7)

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