Dustin Johnson claimed the FedEx Cup title after a three-stroke victory at the Tour Championship on Monday.
The in-form American carded a two-under 68 in the final round at East Lake to close out his victory and win the $15 million prize.
Johnson finished at 21-under, three strokes clear of Justin Thomas (66) and Xander Schauffele (66).
World number one Johnson was in incredible form to end the season, finishing as runner-up at the US PGA Championship and BMW Championship, either side of his huge win at the Northern Trust.
He carried that run into Atlanta, where he posted three rounds in the 60s, including a solid Monday that featured four birdies and two bogeys.
Johnson started with three birdies on his first six holes before dropping shots at seven and eight, but a consistent back nine was sealed with a gain at the last.
His FedEx Cup crown adds to his 2016 U.S. Open title, while the Tour Championship win marked his 23rd success on the PGA Tour.
While Thomas, the 2017 FedEx Cup winner, and Schauffele finished tied for second, Jon Rahm (66) ended up outright fourth at 17 under.
Scottie Scheffler (65) finished three shots further back and one ahead of US PGA winner Collin Morikawa (69).
After a promising start, Rory McIlroy – who became a father last week – finished in a tie for eighth.
The defending champion opened with a 64 but rounds of 71 and 70 saw him fall out of contention before he closed with a 67.