Adam Schenk and Matthew Wolff took a while to get started in the third round of the US PGA Tour's Shriners Children's Open. It's how they finished that put them into the final group with a chance to win.

Both figure that's how it will unfold again on Sunday at the suddenly-windy TPC Summerlin in Las Vegas.

Schenk let the wind do the work for a driver onto the green at the par-4 15th, setting up three birdies over his last four holes for a five-under 66 and a one-shot lead at 18 under, the second time in his last five starts he has held the 54-hole lead.

The daunting presence behind him was Wolff, who drove the 15th green with a 3-wood and then blistered a drive so far down the par-5 16th hole that he had a pitching wedge for his second shot for eagle and carried him to a 65.

"The back nine, there's two par 5s and a drivable par 4," Wolff said. "I knew that making the turn at 1 under, I definitely would be in a good spot to make a run on the back nine."

Sam Burns, coming off a victory last week in Mississippi, got it backward. He went out in 32 but had to settle for a 68 and was two shots behind, along with Andrew Putnam (66) and Chad Ramey (69).

Marc Leishman shot a 68 to join Matt Jones (71) as the leading Australians at 11 under - tied 15th and seven shots behind Schenk - with Adam Scott two shots further back after a 67.

Schenk recorded his 10th consecutive round in the 60s at the TPC Summerlin, and this started out as one of the tougher days.

Schenk had two bogeys on his opening five holes and was in danger of falling behind, except that he knew the course - even a windy Summerlin - would offer chances.

He seized them at the end of the front nine, running off three straight birdies, including a 6-iron to 5 feet on the 213-yard eighth hole.

"I just knew I needed to come back and make some birdies, hopefully on the end of the front nine and then on the back nine during that stretch where it's pretty gettable," Schenk said.

Wolff loves it here, too. He has never shot worse than 69 in his 11 rounds in Las Vegas, dating to his rookie season. Wolff lost in a three-man playoff at the Shriners last year, and he had a hunch he was in for a good week.

The former Oklahoma State star looked confident as ever, a big change from earlier this year when he stepped away from golf to clear his head, to keep from letting scores dictate what makes him happy.

He has family with him this week from California, and he has another shot to win in Las Vegas.