Event: City Chess Swiss 2023-24

Opponent Rating Result
David C Bareham 1892 1 - 0
Miguel Senlle Caride 0 0 - 1
D Ian Calvert 2025 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1306 = (3917 + 400 * (1 - 1)) / 3)

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