Event: Division 1

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Opponent Rating Result
Simon Pickard 131 1 - 0
Roger D Knight 156 1 - 0
Caspian Fowler 113 0 - 1
Alex Conway 150 0 - 1
Paul Groves 0 ½ - ½
James E Fewkes 141 0 - 1
RN Phil Johnson 125 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2 = (816 + 400 * (2 - 4)) / 7)

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