Event: U1850

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Opponent Rating Result
Nathaniel Holroyd-Doveton 1707 ½ - ½
Peter E Caulfield 1665 1 - 0
Ben Ellington 1732 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1835 = (5104 + 400 * (1 - 0)) / 3)

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