Event: Hull Champs Swiss

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Opponent	Rating	Result
Nicholas Tarasenko	1125	1 - 0
John W Atkinson	2005	½ - ½
Oleg Dukalev	1707	½ - ½
Kristian C Usifoh	2050	0 - 1
Joseph Catto	1856	½ - ½
Robert Docwra	1685	½ - ½
David Stothard	1748	1 - 0

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

1797 = (12176 + 400 * (2 - 1)) / 7)