Event: Div4

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Opponent Rating Result
Adrian J Dibble 88 0 - 1
Paul Hardwick 102 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-105 = (190 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Brian Jones 55 1 - 0
Matthew Smeeton 0 1 - 0
Dudley Thorpe 71 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

309 = (126 + 400 * (2 - 0)) / 3)