Event: Kent TCC

Opponent Rating Result
Ximan Mao 0 0 - 1
Dmitry Belousov 82 ½ - ½
Alex Tyson 0 0 - 1
Robert Payne 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-80 = (82 + 400 * (1 - 2)) / 4)

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