Another strong finish from England's Matt Fitzpatrick would put him where he wants to be in the RBC Heritage.
Fitzpatrick turned in a strong stretch on the back nine Saturday to shoot a 3-under-par 68 and keep the lead through three rounds at Hilton Head Island, S.C.
"I felt like I was making good enough swings to make a turnaround on the back nine," Fitzpatrick said. "Obviously, some nice momentum with the hole-outs on 14 and 15."
Fitzpatrick moved to 17-under 196 and increased his lead to three shots, but world No 1 Scottie Scheffler stands as his closest pursuer going into Sunday's final round.
Fitzpatrick's eagle 3 on the 15th at Harbour Town Golf Links capped a four-hole stretch that he played at 4 under. He settled down after three bogeys on the front side.
"It's always satisfying when you can turn it around, particularly if you have not played that well and you are struggling a little bit and not scoring as well as you want," Fitzpatrick said.
Scheffler shot 64 to climb into second. Brian Harman (63) joined Austria's Sepp Straka (67) and South Korea's Si Woo Kim (66) at 13 under.
Fitzpatrick will be aiming for his second victory of the year. He won a month ago at the Valspar Championship, just one week after a runner-up finish at The Players Championship.
Saturday's turnaround was rewarding.
"I was pleased the way I hit the ball off the tee coming in," Fitzpatrick said. "Obviously, then just some good putting on that back nine to take advantage of it."
He rolled in a putt from off the green – 26 feet away – the par-3 14th. On the next hole, he chipped from off the green for the eagle on a shot from just inside 30 feet.
Scheffler sizzled at the start Saturday with birdies on five of the first six holes.
"I was a little bit behind the 8-ball going into today but had a nice round to put myself back in position," Scheffler said. "... As you start kind of getting back into contention, I think that's always fun."
Fitzpatrick said he understands there will be a pro-Scheffler tone in Sunday's galleries.
"We're in America, so I wouldn't expect any different," Fitzpatrick said. "Yeah, they've got to support their guy, and that's totally fine."
Harman became the clubhouse leader before the final groups reached the round's midway mark. Harman began the day in 27th place, but he posted birdies on the final three holes to be the first to finish at 13 under.
"Just tried to keep the pedal down," Harman said. "It's going to take a low number to win. The weather is going to turn a little bit (Sunday), so it was nice to get out there with some good conditions."
Still, Harman said the setup could work to his advantage.
"You really have to think your way around this place," he said. "It's not just a bomb-and-gouge. I'm not a bomber."
The golfers at 12 under are Andrew Novak (65), Gary Woodland (66), Patrick Cantlay (68), Sweden's Ludvig Aberg (68) and South Africa's Aldrich Potgieter (67).
"I think I kind of got to go in with the same kind of attack mentality as today and get it going, go post a number, and see how guys handle the wind late," Novak said.