Event: Folkestone Club Championship

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Opponent Rating Result
John B Atherton 1933 0 - 1
Chris Cummins 1161 0 - 1
Oscar Christensen 1458 0 - 1
Vincent Larson 1324 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1069 = (5876 + 400 * (0 - 4)) / 4)

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