Event: Division B

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Opponent Rating Result
Chris Jardine 146 ½ - ½
David Tuke 132 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

339 = (278 + 400 * (1 - 0)) / 2)

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Opponent Rating Result
Robert Hart 130 ½ - ½
Tony Byrne 111 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-80 = (241 + 400 * (0 - 1)) / 2)