Event: Division 2

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Opponent Rating Result
Karl Lockett 149 0 - 1
Alan M Paling 159 0 - 1
Geoff Laurence 149 0 - 1
Glyn D Valentine 145 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-250 = (602 + 400 * (0 - 4)) / 4)

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