Event: Folkestone Club Championship

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Opponent Rating Result
David Erwee 1533 0 - 1
Vincent Larson 1250 0 - 1
Chris Cummins 1000 1 - 0
Charles De Freitas 1183 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1242 = (4966 + 400 * (2 - 2)) / 4)

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