Event: Division B

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Opponent Rating Result
Peter Dickinson 122 ½ - ½
John Addison 143 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-68 = (265 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Sean Fitzgibbon 150 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-250 = (150 + 400 * (0 - 1)) / 1)