Event: Division 1

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Opponent Rating Result
Peter Harbott 163 ½ - ½
Oliver Froom 173 ½ - ½
Matthew J Britnell 166 ½ - ½
Mark Broom 200 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

176 = (702 + 400 * (0 - 0)) / 4)

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Opponent Rating Result
Laurence A Butt 161 1 - 0
James M Wheeler 156 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

359 = (317 + 400 * (1 - 0)) / 2)