US Open winner Jon Rahm will play with defending champion Shane Lowry and 2010 winner Louis Oosthuizen in the first two rounds of the 149th Open.
England’s Richard Bland, who won his first European Tour event on his 478th start in May, will hit Thursday’s first shot at Royal St George’s at 6,35am.
Four-time major champion Rory McIlroy, the 2014 winner, goes out at 3.21pm with American Ryder Cup rival Patrick Reed.
Six-time major winner Phil Mickelson, who won the US PGA Championship in May and was runner-up here in 2011 before going on to win the 2013 Claret Jug, is out at 2.48pm with fellow American Kevin Kisner and Tyrell Hatton.
Jordan Spieth, who won the Open in 2017, is in the 9.25am group with last year’s US Open champion Bryson DeChambeau and South Africa’s Branden Grace.
Round one – Thursday, 15 July
(all times BST, * denotes amateur)
06:35 Marcus Armitage (Eng), Richard Bland (Eng), Andy Sullivan (Eng)
06:46 Justin Harding (SA), Chan Kim (US), Haotong Li (Chn)
06:57 Gonzalo Fernandez-Castano (Spa), Abel Gallegos (Arg)*, Michael Lorenzo-Vera (Fra)
07:08 Richard Mansell (Eng), Alexander Noren (Swe), JC Ritchie (SA)
07:19 Dean Burmester (SA), Laird Shepherd (Eng)*, Danny Willett (Eng)
07:30 Christiaan Bezuidenhout (SA), Sam Horsfield (Eng), Min-Woo Lee (Aus)
07:41 Viktor Hovland (Nor), Ryan Palmer (US), Thomas Detry (Bel)
07:52 Abraham Ancer (Mex), Paul Casey (Eng), Ian Poulter (Eng)
08:03 Garrick Higgo (SA), Brooks Koepka (US), Jason Kokrak (US)
08:14 Daniel Berger (US), Joel Dahmen (US), Joaquin Niemann (Chi)
08:25 Darren Clarke (NI), Joe Long (Eng)*, Bernd Wiesberger (Aut)
08:36 Marcus Kinhult (Swe), Chris Kirk (US), Jack Senior (Eng)
08:47 Talor Gooch (US), Chengtsung Pan (Tai), Jonathan Thomson (Eng)
09:03 Ernie Els (SA), Cole Hammer (US)*, Gary Woodland (US)
09:14 Sam Burns (US), Jorge Campillo (Spa), Lucas Herbert (Aus)
09:25 Bryson DeChambeau (US), Branden Grace (SA), Jordan Spieth (US)
09:36 Brian Harman (US), Mackenzie Hughes (Can), Dylan Frittelli (SA)
09:47 Guido Migliozzi (Ita), Victor Perez (Fra), Kevin Streelman (US)
09:58 Shane Lowry (Ire), Louis Oosthuizen (SA), Jon Rahm (Spa)
10:09 Stewart Cink (US), Martin Kaymer (Ger), Lee Westwood (Eng)
10:20 Dustin Johnson (US), Justin Rose (Eng), Will Zalatoris (US)
10:31 Sergio Garcia (Spa), Yuxin Lin (Chn)*, Scottie Scheffler (US)
10:42 Harris English (US), Chez Reavie (US), Erik van Rooyen (SA)
10:53 Byeong-Hun An (Kor), Lucas Glover (US), Brandt Snedeker (US)
11:04 Takumi Kanaya (Jpn), Marcel Schneider (Ger), Cameron Tringale (US)
11:15 Lanto Griffin (US), Rikuya Hoshino (Jpn), Connor Worsdall (Eng)
11:36 Daniel Croft (Eng), Aaron Rai (Eng), Paul Waring (Eng)
11:47 Christoffer Bring (Den)*, Jazz Janewattananond (Tha), Daniel van Tonder (SA)
11:58 Matthias Schmid (Ger)*, Brendan Steele (US), Harold Varner III (US)
12:09 Jaco Ahlers (SA), Troy Merritt (US), Adam Long (US)
12:20 Jason Day (Aus), Joost Luiten (Ned), Johannes Veerman (US)
12:31 John Catlin (US), Romain Langasque (Fra), Aaron Pike (Aus)
12:42 Sam Forgan (Eng), Padraig Harrington (Ire), Brad Kennedy (Aus)
12:53 Tony Finau (US), Adam Hadwin (Can), Billy Horschel (US)
13:04 Patrick Cantlay (US), Matthew Fitzpatrick (Eng), Ryan Fox (NZ)
13:15 Marc Leishman (Aus), Francesco Molinari (Ita), Matt Wallace (Eng)
13:26 Corey Conners (Can), Collin Morikawa (US), Sebastian Munoz (Col)
13:37 Sam Bairstow (Eng)*, Keith Mitchell (US), Jason Scrivener (Aus)
13:48 Emiliano Grillo (Arg), Benjamin Hebert (Fra), Charley Hoffman (US)
14:04 Keegan Bradley (US), Rafael Cabrera (Spa), Richard T Lee (Can)
14:15 Carlos Ortiz (Mex), Matthias Schwab (Aut), Brendon Todd (US)
14:26 Russell Henley (US), Shaun Norris (SA), Webb Simpson (US)
14:37 Daniel Hillier (NZ), Matt Jones (Aus), Marcel Siem (Ger)
14:48 Tyrrell Hatton (Eng), Kevin Kisner (US), Phil Mickelson (US)
14:59 Rickie Fowler (US), Robert MacIntyre (Sco), Xander Schauffele (US)
15:10 Tommy Fleetwood (Eng), Adam Scott (Aus), Justin Thomas (US)
15:21 Rory McIlroy (NI), Patrick Reed (US), Cameron Smith (Aus)
15:32 Max Homa (US), Matt Kuchar (US), Henrik Stenson (Swe)
15:43 Ben Hutchinson (Eng), Ryosuke Kinoshita (Jpn), Antoine Rozner (Fra)
15:54 Kurt Kitayama (US), Deyen Lawson (Aus), Poom Saksansin (Tha)
16:05 Ricardo Celia (Col), Yuki Inamori (Jpn), Jimmy Walker (US)
16:16 Rikard Karlberg (Swe), Ryutaro Nagano (Jpn), Nicholas Poppleton (Eng)
Round two – Friday, 16 July
06:35 Daniel Croft (Eng), Aaron Rai (Eng), Paul Waring (Eng)
06:46 Christoffer Bring (Den)*, Jazz Janewattananond (Tha), Daniel van Tonder (SA)
06:57 Matthias Schmid (Ger)*, Brendan Steele (US), Harold Varner III (US)
07:08 Jaco Ahlers (SA), Troy Merritt (US), Adam Long (US)
07:19 Jason Day (Aus), Joost Luiten (Ned), Johannes Veerman (US)
07:30 John Catlin (US), Romain Langasque (Fra), Aaron Pike (Aus)
07:41 Sam Forgan (Eng), Padraig Harrington (Ire), Brad Kennedy (Aus)
07:52 Tony Finau (US), Adam Hadwin (Can), Billy Horschel (US)
08:03 Patrick Cantlay (US), Matthew Fitzpatrick (Eng), Ryan Fox (NZ)
08:14 Marc Leishman (Aus), Francesco Molinari (Ita), Matt Wallace (Eng)
08:25 Corey Conners (Can), Collin Morikawa (US), Sebastian Munoz (Col)
08:36 Sam Bairstow (Eng)*, Keith Mitchell (US), Jason Scrivener (Aus)
08:47 Emiliano Grillo (Arg), Benjamin Hebert (Fra), Charley Hoffman (US)
09:03 Keegan Bradley (US), Rafael Cabrera (Spa), Richard T Lee (Can)
09:14 Carlos Ortiz (Mex), Matthias Schwab (Aut), Brendon Todd (US)
09:25 Russell Henley (US), Shaun Norris (SA), Webb Simpson (US)
09:36 Daniel Hillier (NZ), Matt Jones (Aus), Marcel Siem (Ger)
09:47 Tyrrell Hatton (Eng), Kevin Kisner (US), Phil Mickelson (US)
09:58 Rickie Fowler (US), Robert MacIntyre (Sco), Xander Schauffele (US)
10:09 Tommy Fleetwood (Eng), Adam Scott (Aus), Justin Thomas (US)
10:20 Rory McIlroy (NI), Patrick Reed (US), Cameron Smith (Aus)
10:31 Max Homa (US), Matt Kuchar (US), Henrik Stenson (Swe)
10:42 Ben Hutchinson (Eng), Ryosuke Kinoshita (Jpn), Antoine Rozner (Fra)
10:53 Kurt Kitayama (US), Deyen Lawson (Aus), Poom Saksansin (Tha)
11:04 Ricardo Celia (Col), Yuki Inamori (Jpn), Jimmy Walker (US)
11:15 Rikard Karlberg (Swe), Ryutaro Nagano (Jpn), Nicholas Poppleton (Eng)
11:36 Marcus Armitage (Eng), Richard Bland (Eng), Andy Sullivan (Eng)
11:47 Justin Harding (SA), Chan Kim (US), Haotong Li (Chn)
11:58 Gonzalo Fernandez-Castano (Spa), Abel Gallegos (Arg)*, Michael Lorenzo-Vera (Fra)
12:09 Richard Mansell (Eng), Alexander Noren (Swe), JC Ritchie (SA)
12:20 Dean Burmester (SA), Laird Shepherd (Eng)*, Danny Willett (Eng)
12:31 Christiaan Bezuidenhout (SA), Sam Horsfield (Eng), Min-Woo Lee (Aus)
12:42 Viktor Hovland (Nor), Ryan Palmer (US), Thomas Detry (Bel)
12:53 Abraham Ancer (Mex), Paul Casey (Eng), Ian Poulter (Eng)
13:04 Garrick Higgo (SA), Brooks Koepka (US), Jason Kokrak (US)
13:15 Daniel Berger (US), Joel Dahmen (US), Joaquin Niemann (Chi)
13:26 Darren Clarke (NI), Joe Long (Eng)*, Bernd Wiesberger (Aut)
13:37 Marcus Kinhult (Swe), Chris Kirk (US), Jack Senior (Eng)
13:48 Talor Gooch (US), Chengtsung Pan (Tai), Jonathan Thomson (Eng)
14:04 Ernie Els (SA), Cole Hammer (US)*, Gary Woodland (US)
14:15 Sam Burns (US), Jorge Campillo (Spa), Lucas Herbert (Aus)
14:26 Bryson DeChambeau (US), Branden Grace (SA), Jordan Spieth (US)
14:37 Brian Harman (US), Mackenzie Hughes (Can), Dylan Frittelli (SA)
14:48 Guido Migliozzi (Ita), Victor Perez (Fra), Kevin Streelman (US)
14:59 Shane Lowry (Ire), Louis Oosthuizen (SA), Jon Rahm (Spa)
15:10 Stewart Cink (US), Martin Kaymer (Ger), Lee Westwood (Eng)
15:21 Dustin Johnson (US), Justin Rose (Eng), Will Zalatoris (US)
15:32 Sergio Garcia (Spa), Yuxin Lin (Chn)*, Scottie Scheffler (US)
15:43 Harris English (US), Chez Reavie (US), Erik van Rooyen (SA)
15:54 Byeong-Hun An (Kor), Lucas Glover (US), Brandt Snedeker (US)
16:05 Takumi Kanaya (Jpn), Marcel Schneider (Ger), Cameron Tringale (US)
16:16 Lanto Griffin (US), Rikuya Hoshino (Jpn), Connor Worsdall (Eng)