Practice days at a golf tournament play a crucial part in a player's success, as they allow those to learn about the course and practice their long and short game on the range and putting green.
Although the main event of the The Open Championship begins on Thursday, there is still plenty of interest over the practice days, with the tee sheet littered with big names heading out on to Royal Birkdale.
Unlike the competition tee times, which are drawn, practice day tee times aren't, as any player can book any tee time and, consequently, be paired with whoever they like.
Obviously, the maximum amount of players you can have in one group is four, but these could range from Ryder Cup stars and Major winners, all the way to amateurs.
Usually, you will find close friends grouping up as well as those from the same country, with money games sometimes involved to keep the competitive juices flowing.
Sometimes, though, some groups will be formed of a mix of experience, with the young players teeing up alongside the older guard in order to learn as much as possible over the practice round.
For fans, it's a great way of seeing the world's best players up close, as the big names are usually scattered around the course throughout the day, thus crowds disperse in different directions.
What's more, depending on what time players are teeing off on Thursday, they will alter their practice rounds accordingly.
For example, if a player is off late on Thursday, they may well have a later tee time on Wednesday, so that it replicates the conditions they will be playing in.
On the other hand, if a player is out early on Thursday, they will practice earlier in the day, so that they guarantee a goodnight's rest before the main event.
Tens of thousands of fans will be attending The Open Championship's practice day on Wednesday and, below, we have listed the full tee times for the day.
It's worth noting that these tee times are subject to change. Players may opt to alter their tee times to suit their practice, and won't necessarily tee off at the given time.
The Open Championship Practice Day Tee Times
Correct as of Wednesday 15th July (9:00am)
All start times BST
*denotes 10th tee start
- 7:00am: Jack McDonald, Max Homa
- 7.:2am: Justin Thomas, Eugenio Chacarra, Jack Buchanan (a)
- 7:24am: Martin Couvra, Tommy Fleetwood, Tiger Christensen, Stuart Grehan (a)
- 7:36am: Sungjae Im, Michael Kim
- 7:48am: Billy Horschel
- 8:00am: Alex Fitzpatrick, Matthew Baldwin, Joe Dean
- 8:12am: David Duval, Sam Stevens
- 8:24am: Rasmus Hojgaard, Nicolai Hojgaard, Ryan Fox, Daniel Hillier
- 8:36am: Fifa Laopakdee (a), David Howard (a)
- 8:48am: Scott Vincent, Patrick Reed, Lev Grinberg (a)
- 9:12am: Jackson Suber, Pierceson Coody, Caleb Surratt
- 9:36am: Keita Nakajima
- 9:36am*: Jeongwoo Ham, Jiho Yang, Keita Nakajima, Thomas Detry
- 9:48am*: Matthew Southgate, Casey Jarvis, Shaun Norris, Alex Smalley
- 10:00am: Henrik Stenson, Andy Sullivan, Robert MacIntyre
- 10:00am*: MJ Daffue, Antoine Rozner, Jordan Spieth, Mateo Pulcini (a)
- 10:12am: Bernd Wiesberger, Min Woo Lee, Michael Thorbjornsen
- 10:12am*: Tom McKibbin, Darren Clarke, Adrien Saddier
- 10:24am: Viktor Hovland, Kristoffer Reitan, Baard Bjoernevik Skogen
- 10:24am*: Travis Smyth, Sam Burns, Scottie Scheffler, Nevill Ruiter (a)
- 10:36am: Jayden Schaper
- 10:36am*: Sepp Straka, JT Poston, Alejandro De Castro Piera (a), Jake Knapp
- 10:48am: Brian Harman, Russell Henley, Rasmus Neergaard-Petersen
- 10:48am*: Andrew Novak, Frederic Lacroix, David Duval, Nick Taylor
- 11:00am: Corey Conners
- 11:00am*: Ren Yonezawa, Justin Rose, Jon Rahm, Michael Hollick
- 11:12am: Joakim Lagergren
- 11:12am*: Gary Woodland, Kurt Kitayama, JJ Spaun, Collin Morikawa
- 11:24am*: David Puig, Joaquin Niemann, Jose Luis Ballester Barrio, Angel Ayora
- 11:36am: Keegan Bradley, Si Woo Kim
- 11:36am*: Ryo Hisatsune, Hideki Matsuyama, Naoyuki Kataoka
- 11:48am: Ben Griffin
- 11:48am*: Ryan Gerard, Harris English, Keith Mitchell, Tom Sloman
- 12:00pm: Bryson DeChambeau, Kazuma Kobori, Kota Kaneko
- 12:36pm*: Dan Bradbury, Sam Bairstow, Robert MacIntyre, Hennie Du Plessis
- 12:48pm*: Johnny Keefer, Maverick McNealy, Jacob Bridgeman, Matt McCarty
- 1:00pm: Alistair Docherty, Stewart Cink
- 1:00pm*: Sami Valimaki, Jesper Svensson, Matthew Jordan
- 1:12pm: Tim Wiedemeyer (a), Haotong Li, Jordan Smith
- 1:24pm: Patrick Cantlay, Xander Schauffele, Adam Scott, Chris Gotterup
- 1:24pm*: Brian Harman, Mason Howell (a)
- 1:36pm: Akshay Bhatia, Rickie Fowler, Sahith Theegala
- 1:36pm*: Tyrrell Hatton, Tom Kim, Michael Brennan, Cameron Young
- 1:48pm: Ludvig Aberg
- 1:48pm*: Max Homa, Bud Cauley, Alex Noren
- 2:00pm: Wyndham Clark, Peter Uihlein, Victor Perez
- 2:00pm*: Aldrich Potgieter, Laurie Canter
- 2:12pm: Francesco Molinari, Francesco Laporta, Matt Fitzpatrick
- 2:24pm*: Dan Brown, Nico Echavarria
- 3:00pm: Austen Truslow, Marcus Plunkett
- 3:12pm: Lucas Herbert, John Parry, Cameron John
- 4:00pm*: Kazuki Higa
- 4:36pm*: Daniel Berger
- 4:48pm*: Francesco Molinari, Harry Hall
