Event: Dave Nicholas Summer League

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Opponent Rating Result
Graham K Brown 149 1 - 0
Tristram De Piro 159 1 - 0
Graham K Brown 149 1 - 0
Tristram De Piro 159 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

554 = (616 + 400 * (4 - 0)) / 4)

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