Patrick Cantlay entered Sunday's final round of the BMW Championship with the outright lead, and he ended it with his second consecutive win at the event after birdieing his 17th hole to pull ahead by one stroke, finishing at 14 under.

He is the first player in the 16-year history of the FedEx Cup playoffs to successfully defend one of the playoff events.

On a tough scoring day where only three players shot better than 68, Cantlay kept his cool, taking advantage of Scott Stallings' missed birdie putt on 18 that would have also moved him to 14 under, draining his own final birdie moments later to head onto the 72nd hole with the lead.

Things threatened to heat up after Cantlay's last tee shot veered right into the bunker, but with a few branches hanging over his direct line to the flag, he played it safe and landed his approach on the open left-side of the green, leaving a 15-yard two-putt to win the tournament.

In his typical stoic fashion, he stepped up and nearly birdied it, lipping out for a tap-in par to secure back-to-back victories at the BMW Championship. 

It is Cantlay's 11th top-10 finish of the season, giving him the most for this PGA Tour season, leading Matt Fitzpatrick and Scottie Scheffler with 10.

Speaking to The Golf Channel after stepping off the 18th green, Cantlay said it takes a little bit of luck to win events like these, highlighting his tee shot on the 17th hole which looked destined for the bunker, only to bounce over and land in the middle of the fairway to set up his winning birdie.

"I hit a lot of solid shots, and then I got a couple of good breaks," he said. "Obviously on 17, that isn't a break I'm expecting, and it was really big for me to take advantage of it. 

"I've played a lot of great golf this week, and I'm happy to come away with the win.

"I made a lot of clutch five and four-footers today, the putter felt really good today, really solid, and I'll hopefully carry that into next week."

Stallings finished in outright second at 13 under, jumping up from 46th in the FedEx Cup standings to 12th, comfortably landing inside the top-30 to book his spot in the coming week's Tour Championship at East Lake Golf Course.

In the two-way tie for third at 11 under was world number one Scottie Scheffler and Xander Schauffele, and in a tie for fifth at 10 under was Canada's Corey Conners, South Korea's Lee Kyoung-hoon, and Australia's Adam Scott.

Lee and Scott had plenty to play for on Sunday, as Lee shot the round of the day with a 65 to leapfrog into the top-30, while Scott needed a bunker save on the 18th hole to book his spot in the Tour Championship, and he did so, finishing 29th in the FedEx Cup standings.

Rounding out the top-10 at nine under was a group that included Jon Rahm and Rory McIlroy, while Shane Lowry was one of three players to finish at eight under, and he was the unlucky player to fall out of the top-30 as Scott jumped in.

Sahith Theegala's tie for 15th at seven under was good enough to finish 28th in the FedEx Cup standings, Jordan Spieth was at six under, and Cameron Young, who looked like a potential winner heading into the weekend, ended up at five under after back-to-back 72s on Saturday and Sunday.