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Event: National Challenge

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Opponent Rating Result
Ian Ellis 0 ½ - ½
Arnold G Kirkland 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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Opponent Rating Result
Purba A Audhora 0 1 - 0
Paul D Doherty 0 0 - 1
Tim Bowler 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-133 = (0 + 400 * (1 - 2)) / 3)