Event: Poulton Rapidplay Championship

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Opponent Rating Result
Dave C Hartley 114 0 - 1
Dave C Hartley 114 1 - 0
Paul N Fearnhead 93 0 - 1
Paul N Fearnhead 93 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-97 = (414 + 400 * (1 - 3)) / 4)

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