Event: Division A

Opponent Rating Result
Rob Gallagher 157 1 - 0
Graham J Ashcroft 163 ½ - ½
Peter Thompson 162 1 - 0
Phillip J Taylor 149 ½ - ½
Paul A Evans 181 1 - 0
Geoffrey Pennington 143 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

426 = (955 + 400 * (4 - 0)) / 6)

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