Bryson DeChambeau lodged a compelling case for a Ryder Cup wildcard by coasting to a four-stroke win at the Northern Trust.
DeChambeau just missed out on an automatic Ryder Cup place in Jim Furyk's American team when the top eight secured spots after the US PGA Championship two weeks ago.
The 24-year-old was ninth in the standings then, but his third PGA Tour victory must surely convince Furyk to choose him as one of his four wildcard picks - three of which he names on Tuesday.
DeChambeau began with a four-stroke lead in New Jersey, but with memories of his final-day collapse at the European Open last month still fresh.
But a two-under-par 69, consisting of four birdies and two bogeys, saw him close out the first of the four post-regular season events and take him to the top of the FedEx Cup standings.
Waterford's Seamus Power finished on five under, tied for 34th, after a final round of 67.
"I said I was a man on a mission," DeChambeau said on Sky Sports about his ambition to win a Ryder Cup place.
Final leaderboard from @TheNTGolf:
— PGA TOUR (@PGATOUR) August 26, 2018
1. @B_DeChambeau, -18
2. @TonyFinauGolf, -14
3. @BillyHo_Golf, -13
3. @CamSmithGolf
5. @RyanPalmerPGA, -12
5. @AaronWise_
5. Adam Scott
8. @JustinThomas34, -11
8. @BKoepka
Full scores and #FedExCup projections: https://t.co/vZk1d8dmgT pic.twitter.com/NF0KKb6CoT
"Hopefully he (Furyk) can see I've got some grit and grind, and even when I don't execute certain shots I can get it done."
Tony Finau also boosted his Ryder Cup wildcard hopes with a closing 68 taking him into second place.
Brooks Koepka's bid to dislodge Dustin Johnson as the world number one faltered in the closing stages.
Congratulations, @B_DeChambeau. 🏆
— PGA TOUR (@PGATOUR) August 26, 2018
The 24-year-old has won his third PGA TOUR title @TheNTGolf.#LiveUnderPar pic.twitter.com/tO3DR52LbL
Koepka lost shots at 11 and 14 and failed to pick up the one or two birdies he needed in the final four holes, the three-time major winner eventually carding a 69 to finish tied for eighth.
Tyrrell Hatton shot a final day seven-under-par 64 to finish tied 20th alongside fellow Englishman Tommy Fleetwood, who finished with a 68.
Tiger Woods, another probable Ryder Cup wildcard pick for the US, ended in a tie for 40th after a final round 70.
Right now, the 4 picks for Jim Furyk for me are Tiger, Mickelson, DeChambeau and ‘fourball’ Finau...or are they ‘easy’? Looks trickier for Europe. I’m still thinking Casey, Poulter, Pieters (partner for McIlroy), Rafa (partner for Rahm) but that means no Stenson & no Knox (again)
— Greg Allen (@gregallenRTE) August 26, 2018