Jesper Svensson signed for a 67 to reach 13-under par and take a one-shot lead into the final day of the FedEx Open de France.
The Swede had held a share of the lead since the first round but quickly moved into the outright lead with four birdies on the front nine before adding one more birdie and a single bogey at the par-4 17th.
“I hit the ball really well all day, a lot of good looks, hit a lot of good putts – it was a good day,” said Svensson.
“A lot of putts slid past, hopefully they’ll drop tomorrow.”
Svensson won the Porsche Singapore Classic in March and finished second at August’s D+D Real Czech Masters, his third runner-up finish of the season.
“Singapore was a great week and so far this has been a great week as well,” he said. “All you want is to have a chance tomorrow on 18.”
Dane Thorbjørn Olesen carded a bogey-free 67 and moved down into a share of second place at 12-under alongside England’s Sam Bairstow whose bogey-free 65 featured an eagle at the par-5 14th.
“Just solid,” said Bairstow. “Front nine was very smooth and I just holed a few putts on the back nine. Hopefully keep it going and hopefully another one.”
Englishmen Joe Dean and overnight co-leader Dan Bradbury signed for rounds of 66 and 69 respectively to take a share of fourth place at 11-under.