Event: Billingham Synthonia Rapid February 2024

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Opponent Rating Result
Bill Wilson 1920 0 - 1
Derek Simpson 1415 1 - 0
Stuart McLaughlin 1558 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1631 = (4893 + 400 * (1 - 1)) / 3)

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