Event: Open County Championship

Opponent Rating Result
Alan Watkins 1821 0 - 1
Francis J Bowers 1843 ½ - ½
Andrew Bowler 0 ½ - ½
Andrew J Donnelly 1822 1 - 0
Francis J Bowers 1843 ½ - ½
Adrian MS Matthews 1833 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1594 = (9162 + 400 * (2 - 1)) / 6)

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