Jason Day finished his bogey-free round of 5-under 65 with an approach to 6 feet for birdie on No. 9, the toughest hole on the course at 518 yards.
Tour Championship: Tiger Woods wins first PGA Tour title in five years to cap off incredible return to golf
Tiger Woods, in his Sunday red shirt, both arms raised in victory on the 18th green. For so many years, the scene was familiar. This time, it was surreal.
Open Championship 2018: Shubhankar Sharma marks birthday by becoming youngest Indian to make cut in a Major
Shubhankar Sharma became the youngest Indian golfer to make the cut in any Major after he capped a wonderful back nine to achieve the feat at the 147th Open Championships.
Jordan Spieth handled the miserable conditions brilliantly in the second round of the British Open on Friday as he took a commanding two-shot lead into the weekend at Royal Birkdale.
A great start to the final round was undone on the back nine for Anirban Lahiri
"I just wish I'd given myself a little better opportunity," Spieth, who would have become the youngest ever world number one had he won, said.
Johnson wiped tears from his eyes before hugging his wife as he walked off the 18th green to pick up the coveted Claret Jug and a first prize of 1.15 million pounds ($1.79 million).
2010 winner Poulter was upset 2&1 by American Rickie Fowler in the 64-player event at Dove Mountain while Donald, who clinched the 2011 title, was hammered 5&4 by Italy's Matteo Manassero.
Johnson chipped in for his opening birdie and then hit four exquisite wedge shots on the back nine Monday to rally from two shots behind to win the Tournament of Champions.
In glorious late afternoon sunshine after a rainy start to the day, Woods rolled in a 12-foot birdie putt at the par-four last to retain control of an event he has won a record five times.
Johnson rolled in two birdie putts over the closing holes at soggy Conway Farms and closed with a 6-under 65 for a two-shot victory over Nick Watney.
Helped along by a 45-foot eagle putt and only one bogey despite trouble lurking around every pot bunker, Johnson had a 5-under 66 for a one-shot lead
Nineteen-year-old Jordan Spieth outlasted David Hearn and Zach Johnson on the fifth hole of a playoff to win the John Deere Classic on Sunday, becoming the youngest winner on the PGA Tour in 82 years.