Event: B Division

Opponent Rating Result
Foivos Patrik Tzortzakos 1940 1 - 0
Chris Jardine 1779 0 - 1
Ondrej Chalupa 1787 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1835 = (5506 + 400 * (1 - 1)) / 3)

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