Event: City Chess Swiss 2017-18

Opponent Rating Result
Denis Frayssignes 0 0 - 1
Alan Freedman 0 0 - 1
Michael N Jones 0 0 - 1
David Loughran 0 1 - 0
Shujaat Ishaq 0 0 - 1
Robert Wylie 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-267 = (0 + 400 * (1 - 5)) / 6)

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