Adam Schenk had a day to remember as he moved top of the Shriners Children's Open leaderboard by one stroke following a red-hot finish to his third round.
American golfer Schenk carded a five-under-par 66 to hit the front at the PGA Tour tournament in Las Vegas on Saturday.
Searching for his first PGA Tour title, the 29-year-old birdied three of the last four holes to seize control, with a birdie on the final hole ensuring Schenk finished the day 18 under and ahead of Matthew Wolff.
Schenk holds the outright 54-hole lead – the first of his career in a stroke-play event on Tour – thanks to seven total birdies and just two bogeys at TPC Summerlin.
"It was nice to finish off with a birdie," Schenk said. "Great day. I couldn't have shot many shots lower."
Wolff posted a six-under-par 65, his 11th score in the 60s in 11 career rounds at the Shriners Children's Open.
Andrew Putnam (66), Sam Burns (68) and Chad Ramey (69) are two strokes off the pace heading into Sunday's final round, while Im Sung-jae slipped to 15 under following his third-round 70.
Defending champion Martin Laird recorded a four-under-par 67 to catapult himself 15 positions into a tie for 15th, seven shots behind Schenk.
Brooks Koepka – the four-time major champion – is 12 strokes off the pace following his 72, alongside Viktor Hovland (73), while Masters winner Hideki Matsuyama (71) is five under overall.