Event: York Club Championship

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Opponent	Rating	Result
Maksym Kryshtafor	1607	1 - 0(def)
Aaron Rich	1822	1 - 0
Adam Ismail	1915	1 - 0
Paul M Barber	1955	1 - 0
Ewen Miller	1802	1 - 0(def)
A Jon Griffith	1769	1 - 0
Stephen Donkin	1544	1 - 0
David Wm Smith	1712	1 - 0

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

2186 = (10717 + 400 * (6 - 0)) / 6)