Event: York Club Championship

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Opponent	Rating	Result
Paul Masiak	0	1 - 0
Adam Bedi	2006	½ - ½
Adam Ismail	0	0 - 1
Stephen Donkin	0	1 - 0
Paul M Barber	0	0 - 1
John Foo	0	1 - 0
T Noel Stewart	0	½ - ½
Herbert Lockwood	0	½ - ½
M Paul Townsend	0	0 - 1

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

223 = (2006 + 400 * (3 - 3)) / 9)