Event: Division 2

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Opponent Rating Result
Andy J Trevelyan 1924 0 - 1
John G Horton 1694 1 - 0
James W Ross 1870 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1829 = (5488 + 400 * (1 - 1)) / 3)

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