Event: Autumn Rapid

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Opponent Rating Result
Shane Cooksey 1432 0 - 1
Ethan Willetts-Pitt 1596 0 - 1
David Jarvis 1627 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1152 = (4655 + 400 * (0 - 3)) / 3)

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