Event: Division 1

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Opponent Rating Result
Glyn D Valentine 143 0 - 1
Chris P Hankey 155 ½ - ½
John M Turner 176 0 - 1
David I Hulme 144 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-146 = (618 + 400 * (0 - 3)) / 4)

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