David Lingmerth leads the Quicken Loans National by one shot, despite enduring a difficult day at the TPC Potomac.

Lingmerth waved his arm disgustedly to the right to warn the gallery after he blocked his tee shot on the tight par-5 10th hole at TPC Potomac, reports the PGA TOUR website. After two shots from the rough, one from a hazard and one from a bunker, he made a 6-footer for bogey to fall to 3 over for the day.

He was still tied for the lead. Minutes later, he led by himself again when Daniel Summerhays bogeyed 11.

It was that kind of day at the Quicken Loans National.

Lingmerth steadied himself after his adventure on 10, and made an aggressive swing with a driver that came off perfectly on the short par-4 14th, leading to a two-putt birdie. The 29-year-old Swede made a sloppy bogey on 17 and managed a 3-over 73 to drop to 7 under and maintain a one-shot over Summerhays.

Spencer Levin, who teed off two hours ahead of Lingmerth, was alone in third at 5 under after the best round of the day, a 65.

There was little wind on Saturday and the greens were softened by a thunderstorm that caused a 90-minute delay, but TPC Potomac played as difficult as ever, showing as much bite as its storied neighbor, Congressional. Saturday ended the same way that the first two rounds did – with Lingmerth atop the leaderboard.

Lingmerth, who came from behind to win a Web.com Tour event at TPC Potomac in 2012, has a chance to go wire-to-wire for his second PGA TOUR victory.

‘I haven’t had the wire-to-wire scenario in my career, but a lot of great players have won tournaments that way and I would like to do it as well,’ he said. ‘I’m kind of feeling like I’m up for the challenge.’

Lingmerth relied on a fade to avoid trouble off the tee while starting the tournament with back-to-back rounds of 65. On Saturday, it didn’t take long for his go-to shot to abandon him. He yanked his opening tee shot into a fairway bunker, leading to bogey. It was one of four tee shots he missed to the left in the first eight holes, including a driver in the water on the narrow par-4 fourth.

Only 17 players were under par after three rounds.

Photo: PGA Tour