Event: Hull Champs Swiss

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Opponent	Rating	Result
Jason Clemmey	1373	1 - 0(def)
Andrei Ciuravin	2178	0 - 1
Steve J Thrower	1456	1 - 0
John G Cooper	2193	0 - 1
Paul A Allison	1711	½ - ½
David Stothard	1748	1 - 0
Mark I Collinson	1961	0 - 1
Kristian C Usifoh	2050	1 - 0

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

1900 = (13297 + 400 * (3 - 3)) / 7)