Here are the first-round groupings and tee times for the Memorial Tournament, beginning Thursday at Muirfield Village Golf Club in Dublin, Ohio.
1st tee
7:20 a.m. - Chris DiMarco, Marc Leishman, Chris Stroud
7:31 a.m. - Bud Cauley, Blake Adams, Greg Chalmers
7:42 a.m. - Graham DeLaet, Steve Marino, Ryuji Imada
7:53 a.m. - Brendan Steele, Vijay Singh, Trevor Immelman
8:04 a.m. - Carl Pettersson, Webb Simpson, Charl Schwartzel
8:15 a.m. - Kyle Stanley, Mark Wilson, Jason Day
8:26 a.m. - Kevin Na, Angel Cabrera, Mike Weir
8:37 a.m. - Chris Kirk, Robert Garrigus, Robert Allenby
8:48 a.m. - Pat Perez, Kris Blanks, Kevin Chappell
8:59 a.m. - J.J. Killeen, Martin Flores, Bo Hoag
12:10 p.m. - Chris Couch, Briny Baird, Ricky Barnes
12:21 p.m. - Nick O’Hern, Jimmy Walker, Tommy Gainey
12:32 p.m. - J.B. Holmes, Brian Davis, Nicolas Colsaerts
12:43 p.m. - Ben Crane, Lucas Glover, Geoff Ogilvy
12:54 p.m. - Hunter Mahan, Justin Rose, Steve Stricker
1:05 p.m. - Rickie Fowler, Bubba Watson, Phil Mickelson
1:16 p.m. - Scott Piercy, K.J. Choi, Stuart Appleby
1:27 p.m. - Scott Stallings, Nick Watney, Jonathan Byrd
1:38 p.m. - Jonas Blixt, Colt Knost, Brian Harman
1:49 p.m. - Daniel Summerhays, Erik Compton, Bryden Macpherson
10th tee
7:20 a.m. - Jeff Overton, James Driscoll, Tom Gillis
7:31 a.m. - Boo Weekley, Billy Mayfair, Brendon de Jonge
7:42 a.m. - Sang-moon Bae, Andres Romero, Kevin Streelman
7:53 a.m. - Bo Van Pelt, Davis Love III, John Senden
8:04 a.m. - Luke Donald, Rory McIlroy, Keegan Bradley
8:15 a.m. - Tiger Woods, Fred Couples, Bill Haas
8:26 a.m. - Camilo Villegas, Aaron Baddeley, Jim Furyk
8:37 a.m. - Gary Woodland, Rory Sabbatini, D.A. Points
8:48 a.m. - Charlie Wi, Ken Duke, David Mathis
8:59 a.m. - Seung-yul Noh, Kyle Reifers, Kelly Kraft
12:10 p.m. - Troy Matteson, Kevin Stadler, David Hearn
12:21 p.m. - Brandt Jobe, Cameron Tringale, Michael Thompson
12:32 p.m. - Ryan Moore, Spencer Levin, Greg Owen
12:43 p.m. - George McNeill, Bryce Molder, Henrik Stenson
12:54 p.m. - Brandt Snedeker, Dustin Johnson, Adam Scott
1:05 p.m. - John Huh, Johnsno Wagner, Louis Oosthuizen
1:16 p.m. - Ben Curtis, Jhonattan Vegas, Jerry Kelly
1:27 p.m. - Charley Hoffman, Ernie Els, Stewart Cink
1:38 p.m. - Matt Every, Harris English, Ryo Ishikawa
1:49 p.m. - Garth Mulroy, Billy Hurley III, Branden Grace