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Event: U1825 Group A

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Opponent Rating Result
Paul Mottram 152 1 - 0
Stuart MacDonald 152 ½ - ½
Andrew Bayliss 140 1 - 0
Michael J Norris 107 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

338 = (551 + 400 * (2 - 0)) / 4)

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