Event: B&DCL Div 2

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Opponent Rating Result
Colin A Wilson 134 1 - 0
Paul T Errington 119 0 - 1
Michael Honey 132 1 - 0
Simon Errington 102 1 - 0
Robert Halse 130 1 - 0
Michael Honey 132 1 - 0
Paul A Bland 117 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

409 = (866 + 400 * (6 - 1)) / 7)

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