Event: Folkestone Club Championship

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Opponent Rating Result
Jim R Bayford 2065 0 - 1
Jimmy Phillips 1437 ½ - ½
Matthew Causer 1538 0 - 1
Chris Cummins 1000 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1410 = (6040 + 400 * (1 - 2)) / 4)

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