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Event: Open Division 2 A

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Opponent Rating Result
Chris A Fraser 0 1 - 0
Eleanor Hapeshi 135 1 - 0
George Mitchell 0 1 - 0
Witold Koreywo 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

434 = (135 + 400 * (4 - 0)) / 4)

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