Event: calderdale 30

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Opponent Rating Result
David Shapland 0 1 - 0
Nick Sykes 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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Opponent Rating Result
Jeremy Butts 0 ½ - ½
Sam B Swain 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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