Event: Billingham Synthonia Chess Club May 2023 Rapid

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Opponent Rating Result
Benjmin Dodgson 1150 0 - 1
Bernie Callaghan 1632 1 - 0
Liam Laing 1662 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1348 = (4444 + 400 * (1 - 2)) / 3)

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