Event: Autumn OTB Division 2

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Opponent Rating Result
Christopher Hodgson 1750 ½ - ½
John F Walton 1450 1 - 0
Michael Carroll 1668 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1889 = (4868 + 400 * (2 - 0)) / 3)

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