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Event: U1825 Group A

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Opponent Rating Result
John R Wickham 130 ½ - ½
Martin Pettinger 152 0 - 1
Peter A Mottram-Epson 107 1 - 0
Ian D Lamb 107 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

124 = (496 + 400 * (1 - 1)) / 4)

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