Justin Thomas made a 15-foot birdie putt on the final hole Saturday for a 5-under-par 65 to tie the 54-hole score record on the PGA Tour, building a seven-shot lead going into the final round of the Sony Open.

No one has ever lost a PGA Tour event with a seven-shot lead, and Thomas has given no indication that will change.

His goal was to not drop any shots on another calm day at Waialae, and he wound up stretching his lead as he goes for a sweep of Hawaii. That last birdie putt put Thomas at 22-under 188, tying the mark Steve Stricker set at the 2010 John Deere Classic.

Thomas got into the record book with an eagle on his final hole in each of the previous two rounds at Waialae — a 59 on Thursday for the eighth sub-60 round in tour history, and the 36-hole scoring record Friday.

He had another chance on the par-5 18th until his second shot clipped a palm frond and came up well short. He pitched to just inside 15 feet below the cup, and poured in the putt.

Zach Johnson shot a 65 to keep pace, though he remained seven shots behind.

Olympic gold medalist Justin Rose (66) and Gary Woodland (68) were eight shots behind, though the 23-year-old Thomas has turned this into a one-man show with one round remaining as he tries to join Ernie Els in 2003 as the only players to win both Hawaii events on the PGA Tour.

The course remained so vulnerable that Kevin Kisner nearly produced the second 59 of the week. Kisner made a 25-foot birdie putt on the eighth hole to reach 9 under for his round. Needing an eagle to shoot 59, he drilled his tee shot on the fast fairways of Waialae, hit 8-iron to 9 feet, and thought he had made it. The putt stayed to the right and burned the edge of the cup, and Kisner had to settle for a 60.

It was the lowest round of his career — but only the second-lowest round this week.

‘‘Can’t be that upset,’’ Kisner said.

He went from making the cut on the number to a tie for sixth, though hardly in contention. Kisner still was nine shots out of the lead.

Thomas had only a few stressful moments, such as the par-3 seventh when his tee shot bounded down to the right into a fluffy lie. He hit a flop shot to about 12 feet and hit the putt so pure he started walking even before it dropped.

Thomas led by at least four shots the entire round. He made his first birdie with a two-putt on the par-5 ninth, drove into a greenside bunker on the par-4 10th and got another birdie and he was on his way.

Coming off a three-shot victory last week at Kapalua, he was in prime position to join Ernie Els in 2003 as the only players to sweep Hawaii.

‘‘He’s not stopping, as we can see,’’ Jordan Spieth said of Thomas. ‘‘Someone has to go out and chase him.’’

European — Graeme Storm took a three-shot lead into the final round of the SA Open in a bid for his first European Tour title in 10 years. The Englishman turned in a third-round 67, the same as Rory McIlroy, who moved into second to set up an intriguing fight Sunday.

‘‘I’d like to be a few shots better or at least a few shots closer to the lead,’’ McIlroy said. ‘‘But hopefully, I can get off to a good start tomorrow and put a bit of pressure on Graeme and make it interesting.’’

Storm had five birdies Saturday and extended his bogey-free run to 41 holes to leave him at 17-under 199 and on the verge of a second European Tour title after winning the Open de France in 2007.

‘‘I have never played with Rory before and I know him really well so it will be a lot of fun,’’ Storm said. ‘‘If he hits a good shot and pips me or beats me comfortably, or whoever makes a move from behind, I can’t really control that. All I can do is control my golf ball.’’

‘‘If I can shoot another score in the 60s I’ll be pleased even if I don’t win. I have come here as a big underdog so that is fine with me.’’

It would complete an amazing turnaround for Storm, who thought he lost his playing privileges by just 100 euros in October but was then handed a reprieve after Patrick Reed opted not to play the Final Series.