Event: Club Championship

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Opponent Rating Result
Simon Green 0 0 - 1
Roger Clarke 0 1 - 0
Tony Gill 0 1 - 0
Paul Rutter 1407 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

552 = (1407 + 400 * (3 - 1)) / 4)

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