Event: Division Six

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Opponent Rating Result
Paul L Hardstaff 118 0 - 1
Simon A Jones 101 0 - 1
Mark E Tallis 133 ½ - ½
Joseph Williams 72 0 - 1
Richard F Collett 84 1 - 0
Andy Bolton 50 1 - 0
Steve Larden 94 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-21 = (652 + 400 * (2 - 4)) / 7)

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