Event: City Chess Swiss 2019-20

Opponent Rating Result
Shujaat Ishaq 1645 1 - 0
Alberto Pambira 0 0 - 1
Daniel Bautista Martin 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

682 = (1645 + 400 * (2 - 1)) / 3)

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