Event: Rapidplay

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Opponent Rating Result
Simon N Rogers 0 0 - 1
Simon N Rogers 0 0 - 1
Kevin Birch 0 0 - 1
Christian E Lamb 0 0 - 1
Christian E Lamb 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-240 = (0 + 400 * (1 - 4)) / 5)

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