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Event: U1825 Group B

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Opponent Rating Result
Trevor A Dickerson 140 1 - 0
Brian Tang 152 1 - 0
Shira Parnes 152 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

548 = (444 + 400 * (3 - 0)) / 3)

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