Kevin Streelman claimed a PGA Tour title at the 153rd attempt on Sunday as he held off a bold final-day surge from Boo Weekley to win the Tampa Bay Championship.
Weekley, among the early starters after three average rounds, came from nowhere to shoot an eight-under 63 to take the clubhouse lead before facing an anxious wait to see whether he had done enough to take the win.
In the end only fellow American Streelman was able to deny Weekley as he shot a four-under 67 to move to 10 under overall and take his maiden PGA title by two strokes.
If Weekley's victory bid was the product of one outstanding round, Streelman's ultimate triumph owed much to high-level consistency, with the 34-year-old from Illinois going bogey-free over his final 37 holes.
Streelman's performances over the final two days were all the more impressive given the Copperhead course has been tough to play, with Weekley's 63 the best round of the tournament.
Streelman's win earns him a ticket to the Masters next month - only the second time he will have played the famous event at Augusta National.
"That was really cool," Streelman said on pgatour.com.
"I just stayed really patient and had a peace about me today.
"It's such a tough golf course where you've got to pick your battles."
Weekley had earlier captured the imagination with a stunning round that vaulted him from the pack into the thick of the action.
"I just stayed really patient and had a peace about me" - Streelman
The 39-year-old charged up the leaderboard with birdies on three of his first nine holes, but better was to come after the turn as he hit five more birdies in a back-nine 30.
Weekley signed for an eight-under-par 63 after his bogey-free round and admitted afterwards that his performance had come out of the blue.
"Even I'm still kind of shocked at how good I really hit it," Weekley said.
"It was one of the best ball-striking days I've had in a long time."
Cameron Tringalemade it an all-American top three as he shot a closing 66 to finish at seven under.
Defending champion Luke Donald of England shot a 69 as he finished in a tie for fourth on six under alongside Australia's Greg Chalmers and Justin Leonard of the United States.