Event: u1850 County Championship

Opponent Rating Result
Simon Riley 1749 1 - 0
John R Wickham 1707 ½ - ½
Paul Walton 1810 0 - 1
Nathan Barnes 1829 ½ - ½
Trevor J Ansell 1845 ½ - ½
Roger H Gordonsmith 1835 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1796 = (10775 + 400 * (1 - 1)) / 6)

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