Event: City Chess Swiss 2022-23

Opponent Rating Result
Daniel Aziz 0 1 - 0
Alfie Heath 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (0 + 400 * (2 - 0)) / 2)

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Opponent Rating Result
Nick Thynne 1510 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1110 = (1510 + 400 * (0 - 1)) / 1)