Event: u1850 County Championship

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Opponent Rating Result
Patrick Fitzgerald 1733 ½ - ½
Ben Yelverton 1730 ½ - ½
Alan PH Norman 1708 1 - 0
David Willsher 1772 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1936 = (6943 + 400 * (2 - 0)) / 4)

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