Sweden's Daniel Chopra secured his maiden PGA Tour victory after a late birdie saw off the challenge of compatriot Fredrik Jacobson and Japan's Shigeki Maruyama at the £2.2million Ginn sur Mer Classic.
The 33-year-old returned to the Tesoro course in a three-way share of the lead on 18 under after darkness forced the postponement of Sunday's final round with just a few holes to play.
Chopra had three to play and his rivals two and knew he probably needed a birdie to take the title and prevent a play-off.
And his nerves were settled almost immediately as a birdie four at the 502-yard 16th edged him ahead.
Jacobson and Maruyama could only par their remaining two holes and Chopra avoided any calamity to collect a cheque for £400,000 - and a first win in 133 starts on the US tour.
Chopra's final-round 71 was the worst of the challengers but just enough for victory.
Jacobson, whose previous best finish of the season was joint fifth at the Memorial in June, carded a four-under 69 to be tied second with Maruyama, who also registered a 69, with the Japanese securing his playing privileges for next season after moving up to 103 on the money list.
Collated final round scores & totals in the USPGA tour Ginn sur Mer Classic, Tesoro Resort, Port St. Lucie, Florida, United States of America
(USA unless stated, par 73):
273 Daniel Chopra (Swe) 67 66 69 71
274 Fredrik Jacobson (Swe) 71 67 67 69, Shigeki Maruyama (Jpn) 69 68 68 69
276 Dicky Pride 73 70 69 64
279 Charlie Wi (Kor) 69 71 68 71, Sean O'Hair 68 68 69 74, Cameron Beckman 70 70 67 72, Ken Duke 72 67 70 70
280 Robert Gamez 72 71 71 66, Michael Sim (Aus) 69 67 72 72, Robert Garrigus 72 70 67 71
281 Jerry Kelly 72 72 68 69, Bob Estes 64 68 72 77, Chris Stroud 70 69 70 72, Parker McLachlin 71 68 70 72
282 Kent Jones 69 71 73 69, Jeff Quinney 73 64 72 73, Daisuke Maruyama (Jpn) 71 66 71 74, Briny Baird 69 70 65 78, Tommy Armour III 64 68 78 72
283 Bryce Molder 67 71 72 73, Greg Owen (Eng) 70 71 68 74
284 Lucas Glover 71 68 73 72, Rich Beem 71 72 71 70, Cliff Kresge 74 70 70 70
285 Brendon De Jonge 74 70 68 73, Paul Gow (Aus) 70 70 70 75, Russ Cochran 73 69 72 71, Matt Kuchar 72 70 69 74, Kevin Na (Kor) 68 70 73 74, Justin Leonard 73 69 68 75, Mark Brooks 69 72 71 73, Frank Lickliter II 68 72 74 71
286 Andrew Buckle (Aus) 72 72 71 71, Brian Gay 70 70 75 71, Ryan Armour 72 72 72 70, John Huston 70 69 76 71, Garrett Willis 73 71 70 72
287 Joe Durant 71 71 75 70, Michael Boyd 73 68 72 74, Lee Janzen 75 68 73 71, Craig Bowden 71 70 70 76, Craig Kanada 67 71 76 73, Johnson Wagner 73 71 71 72
288 Ryan Palmer 71 71 71 75, Ryuji Imada (Jpn) 68 71 70 79, Michael Putnam 68 70 73 77, Jason Dufner 71 70 72 75, Ben Curtis 75 66 73 74, Rich Barcelo 74 68 73 73
289 Steve Flesch 68 73 71 77, Ted Purdy 69 68 77 75, Steve Lowery 70 66 76 77, Steve Wheatcroft 72 72 72 73
290 Brian Davis (Eng) 73 71 73 73, Duffy Waldorf 71 72 74 73, Jeff Gove 73 70 73 74, Bob Tway 70 70 73 77
291 Steve Marino 73 71 74 73, Jim, jr. Gallagher 70 74 72 75, Craig Lile (Rsa) 73 70 71 77, Kyle Reifers 73 68 73 77, Jay Williamson 69 75 72 75, Harrison Frazar 75 68 73 75, Greg Kraft 72 70 73 76
292 Dan Forsman 70 72 73 77, Douglas Labelle 75 69 73 75
293 Grant Waite (Nzl) 72 72 72 77, Jesper Parnevik (Swe) 72 72 70 79
294 Bart Bryant 72 72 73 77, John Merrick 72 70 73 79
298 Chris Riley 70 74 72 82