Event: York Club Championship

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Opponent	Rating	Result
Toby Conyers-Kelly	1237	1 - 0
M Paul Townsend	2252	0 - 1
David Wm Smith	1735	½ - ½
John Foo	1479	1 - 0
Daniel Meredith	1728	1 - 0
Paul M Barber	1959	1 - 0
Adam Ismail	1902	1 - 0
A Jon Griffith	1771	1 - 0

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

2008 = (14063 + 400 * (6 - 1)) / 8)