Event: Open County Championship

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Opponent	Rating	Result
Paul P Smith	2042	½ - ½
Adrian G Elwin	1952	½ - ½
Konrad Scheffler	1922	0 - 1
Paul P Smith	2042	½ - ½
Graham E Borrowdale	2011	0 - 1
Ruben Nangalia Evans	1994	0 - 1

performance = (sum(opponents ratings) + 400(wins-losses)) / games

1794 = (11963 + 400 * (0 - 3)) / 6)