Marc Turnesa fired a four-under-par 68 to win the Justin Timberlake Shriners Hospitals for Children Open.

Turnesa finished at 25-under 263 to record the first PGA Tour victory of his career.

Matt Kuchar was second, a stroke back at 24 under after a closing 67.

Chad Campbell, John Mallinger and Michael Allen tied for third, three shots behind Turnesa, who earned US dollars 738,000 (£425,000) for the win.

Turnesa comes from a successful golf family. His late grandfather Michael won six PGA tour events and his great uncle Joe had 15 tour titles to his credit.

Collated final round scores from the US PGA Tour's Justin Timberlake Shriners Hospitals for Children Open at the TPC at Summerlin in Las Vegas, Nevada (USA unless stated, par 72):

263 Marc Turnesa 62 64 69 68

264 Matt Kuchar 63 63 71 67

266 Chad Campbell 65 67 67 67, Michael Allen 63 69 64 70, John Mallinger 64 64 70 68

267 Tim Herron 72 65 68 62, Davis Love III 68 67 65 67

268 Scott Sterling 69 65 70 64, Tom Pernice Jnr. 68 68 67 65

269 Brad Adamonis 67 65 66 71, Zach Johnson 62 65 70 72, Chris DiMarco 69 64 63 73, Mike Weir (Can) 69 68 66 66, Charles Howell III 67 67 69 66

270 Brian Davis (Eng) 65 68 66 71, Charley Hoffman 67 67 68 68, James Driscoll 71 65 68 66, Kevin Na 64 70 67 69, Bob Estes 66 68 70 66, Daniel Chopra (Swe) 69 65 68 68, George McNeill 67 67 67 69, Ken Duke 63 66 67 74, Ryuji Imada (Jpn) 67 66 71 66

271 Kent Jones 69 69 66 67, Chris Stroud 65 65 67 74, Pat Perez 66 63 71 71, Mark Hensby (Aus) 69 65 68 69, Kevin Sutherland 69 67 66 69, Fred Couples 68 64 69 70, Mark Wilson 70 65 69 67, Jason Day (Aus) 70 67 68 66, Hunter Mahan 65 69 72 65, Bill Haas 68 68 65 70, Mathew Goggin (Aus) 68 67 71 65, Ryan Moore 66 64 68 73

272 Nick Watney 63 68 73 68, Jeff Maggert 70 68 69 65, Robert Garrigus 65 69 68 70, Eric Axley 68 69 69 66, Woody Austin 67 67 68 70, Parker McLachlin 67 69 67 69, Jesper Parnevik (Swe) 69 65 66 72

273 Joe Durant 65 70 68 70, John Huston 71 63 69 70, Kevin Streelman 68 69 68 68, Tim Wilkinson (Nzl) 72 65 70 66

274 Dean Wilson 69 63 72 70, Steve Marino 71 64 69 70, Brett Quigley 68 67 72 67, Martin Laird (Sco) 67 68 70 69, Chez Reavie 64 66 69 75, Frank Lickliter II 65 69 71 69

275 Charlie Wi (Kor) 69 66 71 69, Ben Crane 69 69 68 69, Rich Beem 66 65 72 72, Bo Van Pelt 67 69 68 71

276 Jason Gore 68 70 68 70

277 Steve Lowery 68 70 70 69, Peter Lonard (Aus) 66 69 72 70

278 Charles Warren 65 72 67 74, Omar Uresti 68 70 70 70

279 Jason Allred 69 69 70 71, John Riegger 66 68 70 75

280 Mike Ruiz 67 71 69 73

281 David Duval 69 68 69 75, Matthew Jones (Aus) 66 71 71 73

282 Patrick Sheehan 68 69 66 79, Nick Flanagan (Aus) 64 74 68 76

284 Jeff Overton 69 69 70 76, Kenneth Ferrie (Eng) 66 70 70 78

287 Nicholas Thompson 68 65 75 79