Event: Chessmaster Challenge 80/10

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Opponent Rating Result
Tom Gallagher 1165 0 - 1
Roger Clarke 0 1 - 0
Paul Rutter 1423 1 - 0
Simon Green 0 0 - 1
Alan Ward 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

598 = (2588 + 400 * (3 - 2)) / 5)

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