Event: Division 1

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Opponent Rating Result
Peter J Mulleady 175 0 - 1
Andrew Hargreaves 154 ½ - ½
Ian Williamson 145 1 - 0
Peter Dickinson 122 1 - 0
A Rajski 0 1 - 0
Jonathan Howarth 0 1 - 0
Brian Bancroft 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

314 = (596 + 400 * (5 - 1)) / 7)

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