Event: Division 3

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Opponent Rating Result
Amandeep Singh 1488 0 - 1
William Boothman 1736 ½ - ½
Philip Cockayne 1335 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1520 = (4559 + 400 * (1 - 1)) / 3)

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