Event: West of England Counties Online Championship

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Opponent	Rating	Result
Adrian N Walker	1762	0(def) - 1
Graham Stuart	1769	½ - ½
Richard Clark	1885	0 - 1
Neville N Senior	1783	½ - ½

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

1679 = (5437 + 400 * (0 - 1)) / 3)