Event: First Mike Duck Online Tournament

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Opponent Rating Result
Rafael Rivera Machens 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (1 - 0)) / 1)

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Opponent Rating Result
Gary Reynolds 0 0 - 1
Stephen Lin 0 0 - 1
George Greiff 0 0(def) - 1
Steven P Bennett 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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