Event: Club Championship

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Opponent Rating Result
Chris Cummins 1294 1 - 0
Kevin Smyth 1915 0 - 1
Robert Kingdon 1807 1 - 0
David Erwee 1473 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1822 = (6489 + 400 * (3 - 1)) / 4)

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