Event: York Club Championship

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Opponent	Rating	Result
Paul Masiak	1372	1 - 0
Paul M Barber	1979	0 - 1
Aaron Rich	1864	½ - ½
Daniel Meredith	1659	0 - 1
Vinayak Prasad	1351	1 - 0
Norman G Andrews	1604	1 - 0
Derek Toyne	1604	½ - ½
M Paul Townsend	2298	0 - 1

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

1716 = (13731 + 400 * (3 - 3)) / 8)