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Event: National Challenge

Opponent Rating Result
James Blair 90 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-310 = (90 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
John Morgan 75 1 - 0
Keith Forde 110 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

93 = (185 + 400 * (1 - 1)) / 2)