Event: Division Two

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Opponent Rating Result
Andrew N Lake 157 0 - 1
Geoffrey Marchant 178 0 - 1
Adam Routledge 146 0 - 1
Mike Hadley 150 0(def) - 1
John E Crump 162 ½ - ½
Charlie Sutton 155 ½ - ½
David R Thomas 148 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-109 = (946 + 400 * (0 - 4)) / 6)

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