Event: Folkestone Club Championship

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Opponent Rating Result
Vincent Larson 1341 ½ - ½
Harrison Pitchford 1332 0 - 1
Chris Cummins 1170 1 - 0
David Erwee 1438 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1420 = (5281 + 400 * (2 - 1)) / 4)

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