Event: Dave Nicholas Summer League

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Opponent Rating Result
Joshua Gittins 121 0 - 1
Steve J Dyer 135 0 - 1
Joshua Gittins 121 0 - 1
Steve J Dyer 135 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-172 = (512 + 400 * (0 - 3)) / 4)

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