Event: Division Two

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Opponent Rating Result
Roy A Lawrence 148 0 - 1
Leon Graff 155 ½ - ½
Geoffrey N Stokes 138 ½ - ½
Dave M Davies 159 0 - 1
Julie C Wilson 136 0 - 1
John Freeman 146 1 - 0
Mark Bethel 144 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

32 = (1026 + 400 * (1 - 3)) / 7)

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