Event: Qualifying Group A

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Opponent Rating Result
Nicholas Tweddell 1475 Adjourned
Roger Aris 1667 0 - 1
Henry Spedding 1756 0 - 1
Lee Davis 2042 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1422 = (5465 + 400 * (0 - 3)) / 3)

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