The Open Championship will commence on Thursday, July 17 at Royal Portrush in Northern Ireland. The 156-player field is divided into 52 groups with no split tees.

The first round of The Open Championship 2025 will begin on Thursday at 1:35 a.m. ET. Pádraig Harrington, Nicolai Højgaard, and Tom McKibbin will go off as the first group of the day, while Young-han Song, George Bloor, and OJ Farrell will tee off at 11:06 a.m. ET as the last group.

World No. 1 Scottie Scheffler is paired alongside Shane Lowry and Collin Morikawa for the opening round and will begin at 5:09 a.m. ET. Local favorite Rory McIlroy is paired with Justin Thomas and Tommy Fleetwood, and they will begin their Open Championship week at 10:10 a.m. ET.

The Open Championship 2025 Round 1 tee times explored

Here’s a look at the tee time details for the Open Championship 2025, Round 1:

• 1:35 am: Padraig Harrington, Nicolai Højgaard, Tom McKibbin
• 1:46 am: Louis Oosthuizen, Guido Migliozzi, K.J. Choi
• 1:57 am: Cameron Smith, Marco Penge, Justin Hastings (a)
• 2:08 am: Jason Day, Taylor Pendrith, Jacob Skov Olesen
• 2:19 am: Phil Mickelson, Daniel van Tonder, Ryan Peake
• 2:30 am: Max Greyserman, Byeong Hun An, Niklas Norgaard
• 2:41 am: Jordan Smith, Haotong Li, Dustin Johnson
• 2:52 am: Darren Clarke, Davis Riley, Lucas Herbert
• 3:03 am: Kevin Yu, Julien Guerrier, Mikiya Akutsu
• 3:14 am: Thomas Detry, Chris Gotterup, Lee Westwood
• 3:25 am: Patrick Cantlay, Cameron Young, Mackenzie Hughes
• 3:36 am: Thorbjørn Olesen, Matthew Jordan, Filip Jakubcik (a)
• 3:47 am: Henrik Stenson, Stephan Jaeger, Sebastian Soderberg
• 4:03 am: Kristoffer Reitan, Martin Couvra, Adrien Saddier
• 4:14 am: Takumi Kanaya, Justin Walters, Bryan Newman (a)
• 4:25 am: Hideki Matsuyama, Ryan Fox, Matt Fitzpatrick
• 4:36 am: Sepp Straka, Ben Griffin, Akshay Bhatia
• 4:47 am: Sam Burns, Aldrich Potgieter, Brooks Koepka
• 4:58 am: Xander Schauffele, J.J. Spaun, Jon Rahm
• 5:09 am: Shane Lowry, Collin Morikawa, Scottie Scheffler
• 5:20 am: Corey Conners, Wyndham Clark, Tom Hoge
• 5:31 am: Denny McCarthy, Nico Echavarria, Patrick Reed
• 5:42 am: Matthias Schmid, Ryggs Johnston, Richard Teder (a)
• 5:53 am: Dylan Naidoo, Darren Fichardt, John Axelsen
• 6:04 am: Justin Suh, Oliver Lindell, Jesper Sandborg
• 6:15 am: Sadom Kaewkanjana, Riki Kawamoto, Sampson Zheng
• 6:26 am: Stewart Cink, Matteo Manassero, Marc Leishman
• 6:47 am: Francesco Molinari, Jesper Svensson, Connor Graham (a)
• 6:58 am: Zach Johnson, Daniel Hillier, Daniel Brown
• 7:09 am: Adam Scott, Rickie Fowler, Ethan Fang (a)
• 7:20 am: Laurie Canter, Elvis Smylie, Sergio Garcia
• 7:31 am: Andrew Novak, Matthieu Pavon, Matt Wallace
• 7:42 am: Davis Thompson, Dean Burmester, Rikuya Hoshino
• 7:53 am: Si Woo Kim, Shugo Imahira, Sebastian Cave (a)
• 8:04 am: Michael Kim, Bud Cauley, John Parry
• 8:15 am: Matt McCarty, Shaun Norris, Angel Hidalgo
• 8:26 am: Keegan Bradley, Sungjae Im, Daniel Berger
• 8:37 am: Rasmus Højgaard, Christiaan Bezuidenhout, Romain Langasque
• 8:48 am: Aaron Rai, Sahith Theegala, Harry Hall
• 9:04 am: Justin Leonard, Thriston Lawrence, Antoine Rozner
• 9:15 am: J.T. Poston, Chris Kirk, Carlos Ortiz
• 9:26 am: Brian Harman, Maverick McNealy, Joaquín Niemann
• 9:37 am: Russell Henley, Tyrrell Hatton, Min Woo Lee
• 9:48 am: Robert MacIntyre, Bryson DeChambeau, Justin Rose
• 9:59 am: Jordan Spieth, Ludvig Åberg, Viktor Hovland
• 10:10 am: Rory McIlroy, Justin Thomas, Tommy Fleetwood
• 10:21 am: Harris English, Nick Taylor, Tony Finau
• 10:32 am: Lucas Glover, Jhonattan Vegas, Tom Kim
• 10:43 am: Brian Campbell, John Catlin, Frazer Jones (a)
• 10:54 am: Nathan Kimsey, Jason Kokrak, Cameron Adam (a)
• 11:04 am: Daniel Young, Curtis Luck, Curtis Knipes
• 11:16 am: Young-han Song, George Bloor, OJ Farrell