Matthew Fitzpatrick made the turn in 32 strokes and eventually opened a three-shot lead after two rounds of the Nordea Masters on Friday.
Fitzpatrick's bogey-free 7-under 65 put him at 11 under overall at Bro Hof Slott club and in sight of a second European Tour win, to go with his British Masters victory last November.
In his only top-10 finish this season, he closed the U.S. Masters with a 67 to tie for seventh.
In a five-way tie for second were Fitzpatrick's English countrymen Ross Fisher (68) and Andrew Johnston (69), Nicolas Colsaerts of Belgium (66), local hope Alexander Bjork (68), and Scott Henry of Scotland (69).
Lee Westwood was six shots behind Fitzpatrick after a 71, and Henrik Stenson, the highest-ranked player in the field at No. 6, was two shots inside the even-par cut at 2 under thanks to a 70.