Event: City Chess Swiss 2014-15

Opponent Rating Result
John Kingdom 0 1 - 0
Erika Orsagova 0 ½ - ½
Denis Frayssignes 0 0 - 1
Hassan Atteeque 0 ½ - ½
Brendan Whitworth 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-80 = (0 + 400 * (1 - 2)) / 5)

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