Event: City Chess Swiss 2023-24

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Opponent Rating Result
Gennady B Kupava 1553 0 - 1
Ray P Hamilton 1467 1 - 0
Alfie Heath 1540 0 - 1
Inga Jirgensone 1477 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1509 = (6037 + 400 * (2 - 2)) / 4)

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