Event: Rapidplay

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Opponent Rating Result
William T Marjoram 133 1 - 0
Joe Cunningham 99 0 - 1
Joe Cunningham 99 0 - 1
William T Marjoram 133 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-84 = (464 + 400 * (1 - 3)) / 4)

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