Tiger, Rory in back-to-back groups at PGA Championship

Pairings for the first and second rounds of the PGA Championship at Valhalla Golf Club in Louisville, Ky., include back-to-back groupings featuring Tiger Woods and Rory McIlroy, who are among past Wanamaker Trophy winners on this course.

Woods' group hits the first tee box, starting at No. 10, at 8:04 a.m. EDT Thursday and will tail a group that includes Justin Thomas. McIlroy, Dustin Johnson and Justin Rose will follow the Woods trio at 8:15 a.m.

Defending PGA Championship winner Brooks Koepka anchors a marquee grouping with Max Homa and Jordan Spieth. They'll open on the back nine at 8:37 a.m. EDT on Thursday.

Woods, who posted a playoff win over Bob May to win the 2000 PGA Championship at Valhalla, is joined for the first two rounds by playing partners Adam Scott and Keegan Bradley.

World No. 1 and Masters champion Scottie Scheffler starts at hole No. 1 on Thursday with a scheduled tee time of 2:13 p.m. in a pairing with Wyndham Clark and Brian Harman. The trio immediately follows Jon Rahm, Rickie Fowler and Cameron Young.

McIlroy claimed a one-shot victory in 2014 at Valhalla, outlasting Phil Mickelson.

The full list of tee times and groupings for the first round Thursday:

Starting at No. 1

7:15 a.m. -- Michael Block, Luke Donald, Shaun Micheel

7:26 a.m. -- Jeff Kellen, Alex Smalley, Ben Kohles

7:37 a.m. -- Ryan Fox, Josh Speight, Matt Wallace

7:48 a.m. -- Zac Oakley, Adam Svensson, Ryo Hisatsune

7:59 a.m. -- Adam Hadwin, Martin Kaymer, Taylor Pendrith

8:10 a.m. -- Byeong Hun An, Alexander Bjork, Eric Cole

8:21 a.m. -- Adam Schenk, Corey Conners, Nick Dunlap

8:32 a.m. -- John Daly, Lee Hodges, Robert MacIntyre

8:43 a.m. -- Peter Malnati, Kurt Kitayama, Victor Perez

8:54 a.m. -- Benn Polland, Zac Blair, Ryan van Valezen

9:05 a.m. -- Jeremy Wells, Sami Valimaki, K.H. Lee

9:16 a.m. -- Jared Jones, Taylor Moore, Patrick Rodgers

9:27 a.m. -- Kyle Mendoza, Andy Ogletree, Erik van Rooyen

12:45 p.m. -- David Puig, Thirston Lawrence, Matt Dobyns

12:56 p.m. --- Tracy Phillips, Denny McCarthy, Keita Nakajima

1:07 p.m. -- Talor Gooch, Cameron Davis, Harris English

1:18 p.m. -- Jason Day, Shane Lowry, Nicolai Hojgaard

1:29 p.m. -- Min Woo Lee, Chris Kirk, Billy Horschel

1:40 p.m. -- Gary Woodland, Tom Kim, Joaquin Niemann

1:51 p.m. -- Collin Morikawa, Phil Mickelson, Matthew Fitzpatrick

2:02 p.m. -- Rickie Fowler, Jon Rahm, Cameron Young

2:13 p.m. -- Wyndham Clark, Brian Harman, Scottie Scheffler

2:24 p.m. -- Patrick Cantlay, Camilo Villegas, Will Zalatoris

2:35 p.m. -- Patrick Reed, Sam Burns, Padraig Harrington

2:46 p.m. -- Brad Marek, Mark Hubbard, Maverick McNealy

2:57 p.m. -- Braden Shattuck, S.H. Kim, C.T. Pan

Tee times starting at No. 10

7:20 a.m. -- Doug Ghim, Tyler Collet, Adrian Meronk

7:31 a.m. -- Larkin Gross, Lucas Herbert, Grayson Murray

7:42 a.m. -- Lucas Glover, Stephan Jaeger, Russell Henley

7:53 a.m. -- Ludvig Aberg, Xander Schauffele, Justin Thomas

8:04 a.m. -- Tiger Woods, Adam Scott, Keegan Bradley

8:15 a.m. -- Rory McIlroy, Dustin Johnson, Justin Rose

8:26 a.m. -- Cameron Smith, Hideki Matsuyama, Viktor Hovland

8:37 a.m. -- Brooks Koepka, Max Homa, Jordan Spieth

8:48 a.m. -- Tony Finau, Tyrrell Hatton, Sahith Theegala

8:59 a.m. -- Akshay Bhatia, Tommy Fleetwood, Bryson DeChambeau

9:10 a.m. -- Sepp Straka, Takumi Kanaya, Nick Taylor

9:21 a.m. -- Andy Svoboda, Ben Griffin, Dean Burmester

9:32 a.m. -- Preston Cole, Tim Widing, Adrian Otaegui

12:40 p.m. -- Rich Beem, Sebastian Soderberg, Kazuma Kobori

12:51 p.m. -- Josh Bevell, Aaron Rai, Jordan Smith

1:02 p.m. -- Andrew Putnam, Jesse Mueller, Charley Hoffman

1:13 p.m. -- Si Woo Kim, Tom Hoge, Alex Noren

1:24 p.m. -- Y.E. Yang, Matthieu Pavon, J.T. Poston

1:35 p.m. -- Jake Knapp, Jason Dufner, Francesco Molinari

1:46 p.m. -- Thomas Detry, Jimmy Walker, Rasmus Hojgaard

1:57 p.m. -- Austin Eckroat, Luke List, Mackenzie Hughes

2:08 p.m. -- Sungjae Im, Christiaan Bezuidenhout, Beau Hossler

2:19 p.m. -- Thorbjorn Olesen, Brendon Todd, Keith Mitchell

2:30 p.m. -- John Somers, Brice Garnett, Jesper Svensson

2:41 p.m. -- Emiliano Grillo, Evan Bowser, Alejandro Tosti

2:52 p.m. -- Vincent Norrman, Wyatt Worthington II, Chris Gotterup