Bryson DeChambeau won for the second time in as many starts as he dominated the final round of the Dell Technologies Championship at TPC Boston.
Leaderboard
-16 Bryson DeChambeau
-14 Justin Rose
-13 Cameron Smith
-12 Hideki Matsuyama, CT Pan, Tony Finau
Final round report
For the second event running, Bryson DeChambeau poured cold water on what might have been a sizzling final round as he cruised to victory in the Dell Technologies Championship at TPC Boston.
The American landed his third PGA Tour title in The Northern Trust and, little more than a week later, made it four courtesy of another measured display, rubber-stamping a place on the US Ryder Cup side which captain Jim Furyk will surely make official within 24 hours.
Furyk names three of his four wild cards on Tuesday, with one place reserved for the conclusion of the BMW Championship, and DeChambeau is expected to be given the nod along with Tiger Woods and Phil Mickelson with Tony Finau leading the race to complete the side.
DeChambeau narrowly missed out on an automatic spot to Webb Simpson, but his place in Paris can no longer be in doubt as he capitalised on a Sunday charge with a dominant final round.
Justin Rose finished with a flourish for second after Cameron Smith made bogey at the last to fall to third, but what looked set to be a final-round shootout to rival any this season turned into a lesson in front-running from the newest member of the world's top 10.
DeChambeau took the lead with a birdie at the second and while there were threats emerging from all around the golf course, birdies at seven, eight and nine saw him establish a clear lead as others began to stumble.
A bogey at the 13th hole was cancelled out by a birdie at the 15th and when Cameron Smith's bid for eagle at the final hole ended in disaster, DeChambeau was able to enjoy another victory march as he won by two.
"I can't believe it's my fourth win. It's such an honour to be able to do it so early in my career," he told Sky Sports.
Smith had emerged as the final challenger courtesy of three birdies in seven holes from the 10th, but the closest he got was a stroke - and that for a matter of minutes as DeChambeau produced perhaps the killer blow at the 15th hole.
With Australian youngster Smith coming up short with his approach to the last, Rose's four birdies over the closing six holes saw him move up to second place after a nightmare start to a round which began with back-to-back bogeys.
Rose, though, was never a threat to DeChambeau, whose challengers all came on the easier outward nine and went on the tougher closing holes.
First, Hideki Matsuyama raced to the turn in 30 strokes and added a seventh birdie at the 10th, only for back-to-back three-putts to effectively end his bid for a first win this season.
Then, Ryder Cup hopeful Rafa Cabrera Bello joined in the fun, playing the first two-thirds of his round in six-under, until three bogeys thereafter cost him a top-five spot. Just how expensive they will prove will be revealed when Thomas Bjorn names his European wild cards on Wednesday.
Tyrrell Hatton cut a frustrated figure as he carded an over-par final round to fall to 12th alongside Rory McIlroy, who was within two of the lead during the front-nine but made a series of mistakes coming home, too.
Finau meanwhile bogeyed the 13th and 15th holes but returned to the top-five with a birdie at the last, joining Matsuyama and CT Pan, the latter having earned a place in the BMW Championship with a closing 66.
In the battle to be world number one, Dustin Johnson held off Brooks Koepka for another week courtesy of a closing 64 but the round of the day belonged to Mickelson, who added a 63 to Sunday's 67 and in doing so surely ended speculation that his Ryder Cup place is in danger.
DeChambeau's place has appeared all but certain since he landed The Memorial Tournament in June, with victories in each of the first two events of the FedEx Cup Playoffs confirming his Ryder Cup debut and putting him in line to secure a $10m bonus before then.
Two events of the Playoffs remain, starting with the BMW Championship at Aronimink, Pennsylvania, on Thursday, where DeChambeau will seek to become the first player in the history of the Playoffs to win three events.
On this evidence, he may well take some stopping and it will be a shock if he doesn't tee off later in the week as not only the newest member of the world's top 10, but the latest Ryder Cup rookie. Europe, watch out.
Third round report
Abraham Ancer holds a one-shot lead going into the final round of the Dell Technologies Championship in Boston.
Ancer, 27, who has dual American and Mexican citizenship, shot a six-under-par 65 on the third day to move up four places and sit one stroke better off than Englishman Tyrell Hatton and Bryson DeChambeau.
Hatton followed up his second-round 63 with a two-under-par 69 to remain tied in second place as bogeys at the fifth and ninth holes, plus a double bogey on the 12th, spoilt his card, which included six birdies.
Alongside Hatton is American DeChambeau, who climbed 19 places up the leaderboard after carding one bogey, seven birdies and an eagle-three on the last for an eight-under-par 63.
Hatton's Ryder Cup team-mate Justin Rose shot a one-under-par 70 and is tied in fourth place with 25-year-old Australian Cameron Smith. Both are two shots behind Ancer.
Argentina's Emiliano Grillo shot eight birdies and a bogey for a 64, which lifted him up 23 places into sixth alongside American Kyle Stanley, one stroke further back on 10 under.
Rory McIlroy moved up 13 places and is tied in eighth alongside Jordan Spieth, Tony Finau and American Beau Hossler after carding seven birdies and two bogeys in his third-round score of 66.
Second round report
Tyrrell Hatton's shop-bought putter continued to prove a real bargain as the Englishman surged into a share of second place in the Dell Technologies Championship.
Hatton carded eight birdies in a flawless second round of 63 at TPC Boston to join Ryder Cup team-mate Justin Rose on 10 under par, a shot behind Players Championship winner Webb Simpson, who holed from 70 feet for an eagle on the 18th in his 63.
European number one Tommy Fleetwood is three shots off the pace following a 65, with Spain's Rafael Cabrera Bello part of a nine-way tie for seventh on six under as he tries to enhance his case for a Ryder Cup wild card.
Tiger Woods and Rory McIlroy are both seven shots off the pace on four under after rounds of 66 and 67 respectively.
Frustrated by poor putting during last week's opening FedEx Cup play-off event in New Jersey, Hatton sent his caddie to a Golf Galaxy store to buy a new putter, using a video app to make the selection.
"I was too embarrassed to go into the store to buy a putter. Obviously, he made a good choice," said Hatton, who posted a picture of the receipt on Twitter which showed that the club cost him USD149 (£115) before taxes.
That proved to be money well spent as Hatton carded a closing 65 in New Jersey and six days later the same club helped Hatton one-putt six holes in succession, including a par save on the par-five second after hitting his second shot into the water.
Latest Sky Bet odds (after round two*)
14/1 Bar. *Odds correct at 0845 BST 02/09/2019
First round report
Justin Rose carded a six-under 65 to take the lead after the first round of the Dell Technologies Championship and is 4/1 favourite with Sky Bet to go on and win the tournament.
The Englishman handled windy conditions to hit a bogey-free round at Boston TPC - one of only two players to do so.
His lead is small, however, with Abraham Ancer and Scotland's Russell Knox hot on his heels just one shot behind on five-under.
Knox got off to a flying start with a birdie on the par-4 opening hole, before cancelling out two bogeys with an eagle on the par-4 15th and finishing with a 15-foot birdie putt.
Ancer, who started on the back nine, completed his round with four birdies over the final six holes.
Four Americans - Chris Kirk, Beau Hossler, Keegan Bradley and Gary Woodland - make up a group tied for fourth on four-under, while Dustin Johnson and Rafa Cabrera Bello are among eight sitting on 68.
Tiger Woods struggled to keep up the form he showed at this month's USPGA, finishing round one on 72.
Woods currently sits 25th in the FedEx Cup standings, with the top 70 making it to next week's BMW Championship and the top 30 ultimately qualifying for the season-ending Tour Championship.