Event: Kenneth Appleby

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Opponent Rating Result
Stephen Burton 109 1 - 0
Philip May 98 1 - 0
Dominic Gallagher 108 0 - 1
Pete Farrell 115 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

108 = (430 + 400 * (2 - 2)) / 4)

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