Bubba Watson shot a final round of 63 to win the Travelers Championship by three strokes.
The American Ryder Cup hopeful and two-time Masters Champion carded eight birdies and only one bogey to finish clear of a group of four players including overnight leader Paul Casey.
The Englishman went into Sunday with a four-shot lead and an opening birdie strengthened his position further, but that was as good as it got as three bogeys saw him finish in a share of second with Americans Stewart Cink, JB Holmes and Beau Hossler.
Watson told Sky Sports Golf: "It was a fun round of golf and I got lucky that he (Casey) didn't have his best stuff today."
The left-hander's third win of 2018 confirms his impressive form ahead of next month's Open at Carnoustie and he also took the opportunity to send a message to his country's Ryder Cup captain.
"I'm looking forward to (the Open) and I'm hoping Jim Furyk's going to text and says, 'You're guaranteed for the Ryder Cup' - still waiting on that text!" he said.
"It's one of those years where you want it to keep going, you just don't want it to end."