Event: Kenneth Appleby (U1700)

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Opponent Rating Result
Keith J Riach 1690 0 - 1
Neil Harris 871 1 - 0
Richard Higham 1600 0 - 1
Lewis Carroll 1374 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1184 = (5535 + 400 * (1 - 3)) / 4)

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