US Open champion Webb Simpson is the 6/1 favourite to win the Greenbrier Classic after ending the first round two strokes off the lead.
Simpson carded a five-under-par 65 and is in a tie for fifth as three-time Major champion Vijay Singh leads the way on his own at seven under.
Singh, 49, had eight birdies in his round including six on the back nine and is 11/1 with Paddy Power
to record his first victory since he won four times in 2008.
The Fijian is one shot ahead of American trio Jeff Maggert, Martin Flores and Jonathan Byrd who is the 8/1 second favourite.
However, it was a disappointing day for Tiger Woods, who was unable to build upon his third success of the year last weekend at the AT&T National.
Woods, who now tops the PGA Tour money list and FedEx Cup standings, had a mixed round that included a double-bogey seven at the 17th as he went round in one over par.
He is currently below the cut line, as are other big names Jim Furyk, Dustin Johnson and Phil Mickelson.
Collated first round scores in the Greenbrier Classic (USA unless stated):
63 Vijay Singh (Fij)
64 Jeff Maggert, Martin Flores, Jonathan Byrd
65 J.B. Holmes, Garth Mulroy (Rsa), Andres Romero (Arg), Webb Simpson
66 Jerry Kelly, Charley Hoffman, Sean O'Hair, K J Choi (Kor), Ken Duke, Scott Piercy, Billy Horschel
67 Scott Brown, Scott Stallings, Colt Knost, Patrick Cantlay, Graham Delaet (Can), Kevin Streelman, Blake Adams, Charlie Wi (Kor), Justin Thomas, Richard H. Lee
68 Seung-yul Noh (Kor), Chris Di Marco, Greg Owen (Eng), Gavin Coles (Aus), Chris Couch, John Mallinger, Matt Bettencourt, Francis Quinn, Keegan Bradley, John Daly, Bill Haas, Kyle Reifers, Johnson Wagner, Daniel Summerhays, Stephen Ames (Can)
69 Billy Mayfair, David Hearn (Can), Bob Estes, Daniel Chopra (Swe), Tim Petrovic, David Mathis, Troy Kelly, Hunter Haas, Shane Bertsch, Steve Stricker, Rodney Pampling (Aus), John Merrick, Davis Love III, Brian Harman, Kevin Chappell, D.A. Points, Kevin Na, Ricky Barnes, Ted Potter, Jr., Sang-moon Bae (Kor), Russell Knox (Sco), D.J. Trahan
70 Jeff Overton, Vaughn Taylor, Brian Gay, Gary Christian (Eng), Gary Woodland, Ben Curtis, Steve Wheatcroft, Heath Slocum, Matthew Jones (Aus), Charles Howell III, Marc Leishman (Aus), Boo Weekley, Brian Davis (Eng), Tim Herron, Neal Lancaster, Tom Watson, Steve Flesch, William McGirt, Charlie Beljan, Kenny Perry, Trevor Immelman (Rsa), Arjun Atwal (Ind), Brendon Todd, Troy Matteson, Josh Teater
71 Tiger Woods, Scott Dunlap, Steven Bowditch (Aus), Daniel Miernicki, Roland Thatcher, Roberto Castro, Ryuji Imada (Jpn), Jason Gore, Rory Sabbatini (Rsa), Pat Perez, Chris Stroud, Sung Kang (Kor), Lucas Glover, Dustin Johnson, Phil Mickelson, J J Henry, Mathew Goggin (Aus), Jim Furyk, Miguel Angel Carballo (Arg), John Huh (Kor), Camilo Villegas (Col), Carl Pettersson (Swe), Brandt Snedeker, Cameron Tringale
72 Patrick Sheehan, Jason Kokrak, Kris Blanks, Erik Compton, Greg Chalmers (Aus), Harrison Frazar, James Driscoll, Harris English, Danny Lee (Nzl), Justin Leonard, John Rollins, Nathan Green (Aus), Jon Mills (Can), Robert Mcclellan, Stuart Appleby (Aus)
73 Spencer Levin, Marco Dawson, Kyle Thompson, Will Claxton, Nick O'Hern (Aus), Edward Loar, Mark Anderson, Billy Hurley III, Stephen Gangluff, Tommy Gainey
74 Chris Wilson, Brendon De Jonge, Jimmy Walker, Jhonattan Vegas (Ven), J.J Killeen, Derek Lamely, Jason Bohn
75 Cameron Beckman, Michael Maness, Rocco Mediate
76 Chris Kirk, Bobby Gates, Sam Saunders, Garrett Willis, Tommy Biershenk
77 Alexandre Rocha (Bra), Kevin Kisner
79 Jamie Lovemark
80 Jesse Ferrell
81 David Hutsell