Event: Open County Championship

Opponent Rating Result
Damanjeet Singh 1945 1 - 0
David E Hall 1943 ½ - ½
Alan Watkins 1821 ½ - ½
Kevin J Williamson 1881 ½ - ½
David E Hall 1943 ½ - ½
Andrew J Donnelly 1822 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2026 = (11355 + 400 * (2 - 0)) / 6)

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