Event: Billingham Synthonia Rapid February 2024

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Opponent Rating Result
Brian Ellis 1674 0 - 1
Oliver Butterfield 1223 1 - 0
Dermot O'Higgins 1490 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1329 = (4387 + 400 * (1 - 2)) / 3)

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