Event: Billingham Synthonia Rapid February 2024

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Opponent Rating Result
Nicola Harrington 1147 1 - 0
John S Garnett 2070 0 - 1
Graham E Edwards 1386 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1668 = (4603 + 400 * (2 - 1)) / 3)

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