Event: Division 1

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Opponent Rating Result
Steve Hutchinson 127 0 - 1
Anthony DB Wilkinson 112 0 - 1
Ian D Lamb 139 0 - 1
Graham Peters 67 0 - 1
Brian Davies 83 0 - 1
Graham Ash 78 ½ - ½
Megan Eyiuche 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-142 = (606 + 400 * (1 - 5)) / 7)

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