Event: Division 1

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Opponent Rating Result
Philip J Meade 178 ½ - ½
Ian R White 157 0 - 1
Michael Ashworth 192 1 - 0
Ian R White 166 0 - 1
Michael Ashworth 192 0 - 1
David J Horton 172 ½ - ½
Ian A Robson 190 ½ - ½
Rob E Wilden 150 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

75 = (1397 + 400 * (1 - 3)) / 8)

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