Event: U1850

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Opponent Rating Result
Christopher Hodgson 1821 ½ - ½
David Stuttard 1775 0 - 1
George H Horne 1754 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1783 = (5350 + 400 * (1 - 1)) / 3)

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