Emiliano Grillo won his second PGA tour title after he edged out Adam Schenk in a double playoff hole while English golfer Harry Hall finished tied third in Texas on Sunday.

The Argentinian was two strokes clear and looked primed to take out the Charles Schwab Challenge at the Colonial Golf Course in Fort Worth.

But the 30-year-old hit a double-bogey on the last hole, providing an opening for Schenk to come back into contention, seeking to win his first PGA Tour title.

Grillo hit his drive into a small stream on the final hole which took the ball back 150 yards before stopping against a rock.

He decided to take a penalty stroke and landed a two-putt from 20 yards to tie with Schenk.

Schenk made par on the final hole while English PGA Tour rookie Harry Hall needed a par on the final hole to compete in the playoff.

Hall hit a bogey on the last hole after landing his drive into the water and finished tied in third with world number one American Scott Scheffler on 7-under.

Grillo struck a five-foot birdie putt to claim the title on the second playoff hole to get his first tour win in more than seven years, finishing the tournament on eight-under with 68 on his final day.

Grillo’s last win was in Napa in 2015 and has had four top 10 finishes this season.

American Adam Schenk finished second place for the second time this season and is still pushing for his first tour win.

Hall, 25, was leading after the first and second day but failed to hang on to the lead with two birdies and five bogeys on Sunday.

Englishmen Aaron Rei and Justin Rose finished tied 12th on three-under.

Mackenzie Hughes held his nerve in a playoff against Sepp Straka to secure the Sanderson Farms Championship with a score of 17 under.

It is the second PGA Tour win of the 31-year-old Canadian's career, with nearly six years passed since his first win back at the RSM Classic in 2016.

This win was all the more unlikely after shooting a 71 on Thursday, but he followed it with a 63 on Friday for the lowest round of the week, before finishing with 68 and 69 on the weekend.

He had to fend off the challenge of Straka to get it done, who was the only player this week to shoot all four rounds in the 60s.

Straka rose to a share of the lead after four birdies over the space of five holes on his front-nine, and another pair of back-to-back birdies on the 14th and 15th to tie things up for the last few holes.

Hughes had a makeable birdie putt on the 17th to take the lead, but he narrowly missed it, before hooking his drive on the 18th into a position where salvaging a par was the best-case scenario.

From deep in the rough, he sent his second shot on the par-four over the back of the green, requiring an up-and-down to force a playoff. His long putt from off the green was excellent, leaving him a four-footer for par and he made no mistake.

Hughes again failed to make the green in regulation as they replayed the 18th, but he again saved par as Straka missed a 10-footer for birdie. On the second playoff hole, replaying the 18th one more time, Hughes figured it out, landing his approach within 10 feet and converting the birdie for the win.

Speaking to NBC in the moments after his win, he called being greeted by his wife and young son to celebrate a victory "something I've dreamed about since I had my first boy".

"I kept telling myself the whole week that I was going to do it, and that was the only thing I saw in my mind," he said. "Those par-saves down the stretch… I'd say that kind of describes my game a bit, that grit and perseverance."

There was strong South African representation at the top of the leaderboard, with Garrick Higgo alone in third at 16 under while Dean Burmester took sole possession of fourth at 15 under.

Argentina's Emiliano Grillo was joined by Americans Nick Hardy, Keegan Bradley and Mark Hubbard in a tie for fifth at 13 under, and defending champion Sam Burns finished nine shots off the pace at eight under in a tie for 30th.

Justin Lower has kicked off the new PGA Tour season in style, shooting a nine-under 63 in the opening round of the Fortinet Championship to lead by two strokes.

Lower posted nine birdies and nine pars in his bogey-free round, bookending his day with birdies on the first and last holes.

Coming into his second year on the PGA Tour, Lower has two top-10 finishes to his name, making the cut in 16 of his 28 events this past campaign.

Alone in second place at seven under is Max Homa, who was part of the late starters able to finish their rounds right before play was halted due to darkness, with some competitors still not completing the 14th hole.

Tied for third place is J.J. Spaun along with two South Koreans, An Byeong-hun and Kim Seong-hyeon, with the trio shooting 66s.

There is a nine-man logjam at five under, which includes veteran Rickie Fowler as he tries to rediscover some form this season, as well as rising talent Sahith Theegala and Argentina's top player Emiliano Grillo.

Also at five under is Robby Shelton, who will resume play with six holes to play with a chance to climb the leaderboard even further before starting his second round.

One shot further back at four under is a group that includes Matt Kuchar and Canada's Adam Svensson, with major champions Hideki Matsuyama and Danny Willett at three under.

Tony Finau produced a terrific Sunday performance to win the 3M Open with a final score of 17 under par – even if It was not quite a comfortable finish.

The American completed his final round with six birdies and two bogeys to post the equal second-best score of the day with a 67. One bogey came on the 18th after Finau teed off into the water, but he was never in any real danger after starting that hole with a four-stroke lead.

Finau's charge to the front of the field began during his back nine, when he rattled off four birdies over the course of six holes – including three in a row on 14, 15 and 16 – perfectly coinciding with the collapse of 54-hole leader Scott Piercy.

Speaking to CBS after stepping off the 18th green, Finau said it felt like he was a long way off the lead until it all started to shift.

"[It took] really everything I had," he said. "I was playing great, and every time I looked it up it seemed like I was four or five shots back, really all day.

"I really got things going down the back nine, and once I took control of the golf tournament it was a totally different mindset, trying to seal the deal.

"It's so special just to have my family here with me, and to celebrate this win with them… this one was for them."

Piercy began his day at 18 under with a four-stroke lead, and he was cruising early, making a couple of early birdies to jump out to 20 under, with his buffer extending to five. But everything began to fall apart on the eighth hole.

After back-to-back bogeys on eight and nine, Piercy also bogeyed 11, teased a bounce-back with a birdie on 12, and then capitulated with bogey, triple-bogey, bogey from his next three holes to go tumbling down the leaderboard. Over the course of eight holes, he dropped seven shots, completely eliminating himself from contention.

Piercy finished tied for fourth at 13 under after his 76, along with fellow Americans Tom Hoge and James Hahn, with Hahn's six-under 65 ending up two strokes better than any other final round.

That grouping was one stroke behind Argentina's Emiliano Grillo and South Korea Im Sung-jae, who were tied for second at 14 under.

Rounding out the top 10 were the English pairing of Danny Willett and Callum Tarren, tied for seventh at 10 under along with Greyson Sigg, with Chesson Hadley one shot back.

Recent PGA Tour winner J.T. Poston headlined the group at eight under, and Australia's Cam Davis was at seven under as he prepares to defend his Rocket Mortgage Classic crown this coming week.

Scott Piercy holds a commanding four-stroke lead coming into the final round of the 3M Open, after posting a five-under 66 at TPC Twin Cities.

Coming into moving day with a three-shot lead, Piercy was red-hot on the front nine on a rain-interrupted Saturday in Blaine, Minnesota, scoring five consecutive birdies between holes three and seven.

A bogey on the par-five 18th to close out the round put him on 18-under after 54 holes, moving him four shots clear of Emiliano Grillo in second.

Piercy's last win on the PGA Tour came alongside Billy Horschel as the 2018 Zurich Classic, with his last solo win on the tour going back three years further, taking out the 2015 Barbasol Championship.

Grillo's last win on the PGA Tour also came in 2015, winning the Frys.com Open in a playoff, and he's in contention despite an up-and-down third round amid suitable conditions.

Afternoon thunderstorms caused the third round to be moved up, and without much, the more accessible pin locations and shortened course distance made for low scores.

Grillo and Im Sung-jae were the only players to finish Saturday in the leaderboard's top ten with a third-round score of less than five-under.

Going four-under over the opening six holes after an eagle on the par-five sixth, the Argentine also had to birdie the last to make up for bogeys on the ninth and 15th holes.

Doug Ghim and Tom Hoge are a further stroke back on 13-under, with both posting scores of six-under 65 for their third rounds.

After three consecutive birdies between five and seven, Finau made an extraordinary par save on the par-four ninth, after failing to make the green with his opening three shots.

With the ball nestled in the rough just off the green, the 32-year-old turned his putter sideways and after a couple of practice strokes, made a 34-foot save with the putter's toe.

Scott Piercy's putter was on fire for the second round in a row, setting up a seven-under 64 to follow his opening 65, and at 13 under he is three strokes clear of the chasing field.

Piercy – who this week changed his coach, swing, caddie, driver and putter – seems to be reaping the benefits of his bold moves, going bogey-free on Friday in a round that included four consecutive birdies to open his round on the back-nine.

He trailed only first-round co-leader Im Sung-jae in strokes gained with the putter on Thursday, and he was again second in that category in his second trip around the course, finishing with 3.96 strokes gained on the greens. Only Danny Willett (5.46 strokes gained) performed better with the flat stick.

In outright second place at 10 under is Argentina's Emiliano Grillo, with a strong 65 that included an eagle. He did not excel in any one area in his first round, but on Friday he was top-10 in both strokes gained putting (3.12 strokes, seventh-best) and in approach shots (2.57, ninth-best).

Grillo is two strokes ahead of England's Callum Taren, who is alone in third place at eight under, and he worked his way there after an even-par opening round. 

He shot Friday's round of the day with his eight-under 63, going bogey-free with eight birdies, finishing fifth on the day in strokes gained putting (3.36), second in strokes gained off the tee (2.07) and second in strokes gained tee-to-green (4.92).

There is a five-way tie for fourth at seven under, with American quartet Tony Finau, Robert Streb, Tom Hoge and Doug Ghim, as well as Im after the South Korean followed his six-under opening round with a disappointing 70.

The group tied for ninth are a further two strokes back at five under, which includes Patton Kizzire and Jared Wolfe, while Australia's Cam Davis and England's Willett headlining the group at four under.

Canada's Adam Hadwin finished right on the cut-line at one over, while Davis Riley missed out on the weekend by one stroke, with Beau Hossler at three over and Cameron Tringale at four over.

J.T. Poston claimed his second PGA Tour win on Sunday, holding on to win the John Deere Classic at TPC Deere Run.

The 29-year-old posted a two-under 69 in the fourth and final round to finish on 21-under for the tournament, three shots clear of Emiliano Grillo and the fast-finishing Christiaan Bezuidenhout, tied for second at 18-under.

As well as qualifying for The Open Championship, Poston becomes the first player since David Frost in 1992 to go wire-to-wire at the John Deere Classic and only the third in the tournament's history along with Scott Hoch, who achieved the feat in 1980.

Poston revealed it was not easy to remove the possibility of that achievement from his mind following his round, but with his last win coming at the 2019 Wyndham Championship, believes it is a boost for his confidence.

"It is hard," he told CBS. "I mean, wire-to-wire, having the lead for that long, it's just hard not to think about it and think about that finish line.

"I tried to stick to the game plan. We got off to a great start and then, kind of started to try and give some back, but I hit a lot of good shots down the stretch.

"I was just trying to breathe. I think there were a lot of nerves, more than the first few days. I was just trying to battle through them and I think, after this week, knowing I can play with those nerves. I can still win, I can still shoot a solid score considering the pressure and trying to win out here."

Poston started strongly, opening the round with consecutive birdies on each of the first three holes, but his momentum was halted with bogeys on the fifth and sixth holes.

His round stabilised on the back nine, however, with a birdie on the par-five 17th effectively securing the tournament.

Poston was able to see off Grillo and Bezuidenhout, who claimed three birdies over the closing five holes, with Christopher Gotterup and Scott Stallings finishing a further stroke back on 17-under.

J.T. Poston holds a three-stroke lead heading into the final round of the John Deere Classic after shooting a four-under 67 on Saturday.

Trying to complete a wire-to-wire victory after tying for second last weekend at the Travelers Championship, Poston sits on 19-under after 54 holes at TPC Deere Run.

The 29-year-old started strongly with three birdies on the front nine, but suffered a blip on the closing nine holes, with a birdie on 14 softening the blow of bogeys on 12 and 15.

He recovered to take momentum into Sunday with an eagle on the par-five 17th, forcing his way past the bunkers on his approach to the green to then one-putt and restore breathing room from the chasing pack.

Despite the solid form coming into this weekend in Silvis, Poston's lone win on the PGA Tour came in 2019, taking out the Wyndham Championship.

He leads a three-way tie for second between Scott Stallings, Denny McCarthy and Emiliano Grillo, who birdied four of the last five holes on Saturday to finish on 16-under.

Out of the top four players on the leaderboard, McCarthy is the lone player not to have won a tournament on the PGA Tour, with Stallings and Grillo's last wins coming in 2014 and 2015 respectively.

Trailing them is Callum Tarren on 15-under, with Bo Hoag and Chris Naegel tied for sixth on 14-under.

Hoag, the world number 524, was Saturday's big mover with a third-round score of eight-under, opening the first four holes with two birdies and an eagle.

He more than compensated for his solitary bogey on 15 with birdies on 14, 16 and 17 to finish with the day's lowest score.