Event: u1850 County Championship

Opponent Rating Result
Hazel Bowler 1809 1 - 0
Paul Walton 1833 0 - 1
Nathan Barnes 1838 0 - 1
David Scott 1835 ½ - ½
Andrew Maclaren 1818 1 - 0
Thomas Sheat 1797 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1822 = (10930 + 400 * (2 - 2)) / 6)

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