Event: City Chess Swiss 2023-24

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Opponent Rating Result
Niklas Gärtner 0 0 - 1
David A Morgan 1683 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

442 = (1683 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Ray P Hamilton 1467 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1067 = (1467 + 400 * (0 - 1)) / 1)