Event: DCL Div 2

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Opponent Rating Result
Ken Smith 153 0 - 1
Andrew Young 149 ½ - ½
Andrew Young 149 0 - 1
John F Coles 146 ½ - ½
Chris JP Leeson 143 0 - 1
Malcolm J Steevens 149 0 - 1
Robert Halse 145 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-24 = (1034 + 400 * (1 - 4)) / 7)

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