The 153rd Open Championship begins at 1:35 a.m. ET Thursday morning at Royal Portrush Golf Club in Northern Ireland.

Below are the scheduled pairings for the opening round and viewing options.

Thursday’s featured groups
(All times ET)
4:58 a.m. — Xander Schauffele, J.J. Spaun, Jon Rahm
5:09 a.m. — Shane Lowry, Collin Morikawa, Scottie Scheffler
9:48 a.m. — Robert MacIntyre, Bryson DeChambeau, Justin Rose
9:59 a.m. — Jordan Spieth, Ludvig Aberg, Viktor Hovland
10:10 a.m. — Rory McIlroy, Justin Thomas, Tommy Fleetwood

First round tee times
(All times ET; (a) amateur)
1:35 a.m. — Padraig Harrington, Nicolai Hojgaard, Tom McKibbin
1:46 a.m. — Louis Oosthuizen, Guido Migliozzi, K.J. Choi
1:57 a.m. — Cameron Smith, Marco Penge, Justin Hastings (a)

2:08 a.m. — Jason Day, Taylor Pendrith, Jacob Skov Olesen
2:19 a.m. — Phil Mickelson, Daniel van Tonder, Ryan Peake
2:30 a.m. — Max Greyserman, Byeong Hun An, Niklas Norgaard
2:41 a.m. — Jordan Smith, Haotong Li, Dustin Johnson
2:52 a.m. — Darren Clarke, Davis Riley, Lucas Herbert

3:03 a.m. — Kevin Yu, Julien Guerrier, Mikiya Akutsu
3:14 a.m. — Thomas Detry, Chris Gotterup, Lee Westwood
3:25 a.m. — Patrick Cantlay, Cameron Young, Mackenzie Hughes
3:36 a.m. — Thorbjorn Olesen, Matthew Jordan, Filip Jakubcik (a)
3:47 a.m. — Henrik Stenson, Stephan Jaeger, Sebastian Soderberg

4:03 a.m. — Kristoffer Reitan, Martin Couvra, Adrien Saddier
4:14 a.m. — Takumi Kanaya, Justin Walters, Bryan Newman (a)
4:25 a.m. — Hideki Matsuyama, Ryan Fox, Matt Fitzpatrick
4:36 a.m. — Sepp Straka, Ben Griffin, Akshay Bhatia
4:47 a.m. — Sam Burns, Aldrich Potgieter, Brooks Koepka
4:58 a.m. — Xander Schauffele, J.J. Spaun, Jon Rahm

5:09 a.m. — Shane Lowry, Collin Morikawa, Scottie Scheffler
5:20 a.m. — Corey Conners, Wyndham Clark, Tom Hoge
5:31 a.m. — Denny McCarthy, Nico Echavarria, Patrick Reed
5:42 a.m. — Matt Schmid, Ryggs Johnston, Richard Teder (a)
5:53 a.m. — Dylan Naidoo, Darren Fichardt, John Axelsen

6:04 a.m. — Justin Suh, Oliver Lindell, Jesper Sandborg
6:15 a.m. — Sadom Kaewkanjana, Riki Kawamoto, Sampson Zheng
6:26 a.m. — Stewart Cink, Matteo Manassero, Marc Leishman
6:47 a.m. — Francesco Molinari, Jesper Svensson, Connor Graham (a)
6:58 a.m. — Zach Johnson, Daniel Hillier, Daniel Brown

7:09 a.m. — Adam Scott, Rickie Fowler, Ethan Fang (a)
7:20 a.m. — Laurie Canter, Elvis Smylie, Sergio Garcia
7:31 a.m. — Andrew Novak, Matthieu Pavpn, Matt Wallace
7:42 a.m. — Davis Thompson, Dean Burmester, Rikuya Hoshino
7:53 a.m. — Si Woo Kim, Shugo Imahira, Sebastian Cave (a)

8:04 a.m. — Michael Kim, Bud Cauley, John Parry
8:15 a.m. — Matt McCarty, Shaun Norris, Angel Hidalgo
8:26 a.m. — Keegan Bradley, Sungjae Im, Daniel Berger
8:37 a.m. — Rasmus Hojgaard, Christiaan Bezuidenhout, Romain Langasque
8:48 a.m. — Aaron Rai, Sahith Theegala, Harry Hall

9:04 a.m. — Justin Leonard, Thriston Lawrence, Antoine Rozner
9:15 a.m. — J.T. Poston, Chris Kirk, Carlos Ortiz
9:26 a.m. — Brian Harman, Maverick McNealy, Joaquin Niemann
9:37 a.m. — Russell Henley, Tyrrell Hatton, Min Woo Lee
9:48 a.m. — Robert MacIntyre, Bryson DeChambeau, Justin Rose
9:59 a.m. — Jordan Spieth, Ludvig Aberg, Viktor Hovland

10:10 a.m. — Rory McIlroy, Justin Thomas, Tommy Fleetwood
10:21 a.m. — Harris English, Nick Taylor, Tony Finau
10:32 a.m. — Lucas Glover, Johnattan Vegas, Tom Kim
10:43 a.m. — Brian Campbell, John Catlin, Frazer Jones (a)
10:54 a.m. — Nathan Kimsey, Jason Kokrak, Cameron Adam (a)

11:04 a.m. — Daniel Young, Curtis Luck, Curtis Knipes
11:16 a.m. — Younghan Song, George Bloor, O.J. Farrell

How to watch The Open Championship
(All times ET)
1:30-4 a.m.: Stream on Peacock
4 a.m-3:30 p.m.: USA Network, NBC Sports app, Peacock, Fubo
3:30-6 p.m.: Golf Channel

–Field Level Media