Event: Hull Champs Swiss

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Opponent	Rating	Result
Antoni Garczynski	925	1 - 0
Jack Walker	1650	0 - 1
Edward Staples	0	1 - 0(def)
Mark I Collinson	1961	0 - 1
David Stothard	1748	1 - 0
Keith Thompson	1877	0 - 1
Paul A Allison	1711	½ - ½
Benedikt Pitel	1338	0 - 1

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

1487 = (11210 + 400 * (2 - 4)) / 7)