Spieth shot a final-round 66 to complete two photographs forward of Charley Hoffman and put an finish to a drought that had lasted 1,351 days and 83 match begins.
The former world No. 1’s earlier victory was at the 2017 Open Championship when he secured his third main title.
His return to the winner’s circle is nicely timed as the Masters tees off on Thursday, with Spieth bidding to win his second title at Augusta.
“I feel grateful. It kind of bounces off and on right now when it hits me that I’m back in the winner’s circle,” Spieth, who completed the week on 18-under, advised reporters of his victory in Texas.
“It’s been a road that’s had a lot of tough days. I’ve had people in my corner that have always believed in me even when I’ve kind of believed less in myself.”
Spieth shared the lead with England’s Matt Wallace going into the fourth spherical, but it surely was fellow American Hoffman who got here closest to difficult the 27-year-old by hitting three birdies between the 13th and 16th holes.
That moved Hoffman to inside one shot of the lead, however Spieth’s birdie on the 17th and par on the 18th proved sufficient to wrap up the victory.
With the 12th title of his profession, he joined Tiger Woods, Phil Mickelson, Rory McIlroy and Justin Thomas as the solely gamers from the previous 40 years to win at least 12 occasions earlier than turning 28.
It was additionally Spieth’s first victory since marrying his spouse, Annie Verret, who he embraced on the 18th inexperienced after sealing the win.
“I just feel a lot of gratitude to those who have helped me kind of get back here,” he stated.
“My wife has been just a rock to me … It’s been progressing this way since maybe December, but before that there had been a lot of tough times. When you’re struggling at work, you try not to bring it home and that kind of stuff.”
Spieth will now be amongst the favorites to win the Green Jacket in Augusta, alongside with defending champion Dustin Johnson, 2020 US Open champion Bryson DeChambeau and world No. 3 Jon Rahm, who’s celebrating turning into a father for the first time after the beginning of his son over the weekend.