Event: Durham League Division 1

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Opponent Rating Result
John M Findlay 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-400 = (0 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Robin J Nandi 0 0 - 1
Ned Carmichael 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-200 = (0 + 400 * (0 - 1)) / 2)

Opponent Rating Result
Steve H Jefferies 0 1 - 0
Ned Carmichael 0 1 - 0
Jonathan Sams 0 1 - 0
AD Tony Shires 0 1 - 0
Ben Snodgrass 0 0 - 1
Robert Donner 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

267 = (0 + 400 * (5 - 1)) / 6)