Event: Folkestone Club Championship

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Opponent Rating Result
Robert Twigg 80 0 - 1
Alec Nicol 143 0 - 1
David J Shire 176 0 - 1
Jim R Bayford 180 0 - 1
Tayfun Demirbilek 152 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-254 = (731 + 400 * (0 - 5)) / 5)

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