A total of 156 golfers will tee it up this week for the 121st edition of the U.S. Open at Torrey Pines Golf Course.

The field is made up of players who gain entry through various qualifying events and/or those who are exempt by the way of performance criteria.

The performance exemption criteria includes recent tournament champions and top positioning in the Official World Golf Rankings, among other categories.

For instance, world Nos. 1 and 2, Dustin Johnson (1,2,5,10,11,15) and Justin Thomas (2,6,8,10,11,15), fell under six qualification buckets, while Bryson DeChambeau (1,2,10,11,15) and Rory McIlroy (1,2,8,10,15) qualified through five categories. Others like Martin Kaymer (1) and Zach Johnson (2) checked off only one exemption criteria, but that’s all it takes to get in.

Here’s a look at the 18 exemption categories and the players who met the criteria to gain entrance into the field:

1. Winners of the U.S. Open (2011–2020)
Bryson DeChambeau
Dustin Johnson
Martin Kaymer
Brooks Koepka
Rory McIlroy
Justin Rose
Webb Simpson
Jordan Spieth
Gary Woodland

2. Top-10 Finishers at 2020 U.S. Open
Bryson DeChambeau
Harris English
Tony Finau
Dustin Johnson
Zach Johnson
Rory McIlroy
Louis Oosthuizen
Xander Schauffele
Webb Simpson
Justin Thomas
Matthew Wolff
Will Zalatoris
(including ties)

3. Winner of the 2020 U.S. Amateur
Tyler Strafaci

4. Runner-up in the 2020 U.S. Amateur
Ollie Osborne (a)

5. Winners of the Masters Tournament
Sergio Garcia
Dustin Johnson
Hideki Matsuyama
Patrick Reed
(2017–2021)

6. Winners of the PGA Championship
Brooks Koepka
Phil Mickelson
Collin Morikawa
Justin Thomas
Jimmy Walker
(2017–2021)

7. Winners of The Open Championship
Shane Lowry
Francesco Molinari
Jordan Spieth
Henrik Stenson
(2016–2021)

8. Winners of The Players Championship
Rory McIlroy
Justin Thomas
(2019-2021)

9. Winner of the 2020 BMW PGA Championship
Tyrrell Hatton

10. 2020 Tour Championship Qualifiers
Abraham Ancer
Daniel Berger
Cameron Champ
Bryson DeChambeau
Harris English
Tony Finau
Lanto Griffin
Tyrrell Hatton
Billy Horschel
Viktor Hovland
Mackenzie Hughes
Im Sung-jae
Kevin Kisner
Dustin Johnson
Marc Leishman
Hideki Matsuyama
Rory McIlroy
Collin Morikawa
Sebastian Munoz
Kevin Na
Joaquín Niemann
Ryan Palmer
Jon Rahm
Patrick Reed
Xander Schauffele
Scottie Scheffler
Webb Simpson
Cameron Smith
Justin Thomas
Brendon Todd

11. Multiple PGA Tour Winners
Patrick Cantlay
Stewart Cink
Dustin Johnson
Jason Kokrak
Collin Morikawa
Justin Thomas
Between June 2020 and June 2021

12. Leading 10 “European Qualifying Series”
Marcus Armitage
Richard Bland
Dave Coupland
Thomas Detry
Adrian Meronk
Guido Migliozzi
Edoardo Molinari
Jordan Smith
Matthew Southgate
Mikko Korhonen*

13. 2020 Amateur Championship Winner
Joe Long (a)

14. 2020 Mark H. McCormack Medalist
Takumi Kanaya

15. Top 60: Official World Golf Rankings
Abraham Ancer
Daniel Berger
Christiaan Bezuidenhout
Sam Burns
Patrick Cantlay
Stewart Cink
Paul Casey
Corey Conners
Bryson DeChambeau
Harris English
Tony Finau
Matthew Fitzpatrick
Tommy Fleetwood
Sergio Garcia
Brian Harman
Tyrrell Hatton
Russell Henley
Garrick Higgo
Max Homa
Billy Horschel
Viktor Hovland
Dustin Johnson
Matt Jones
Brooks Koepka
Jason Kokrak
Kim Si-woo
Im Sung-jae
Kevin Kisner
Matt Kuchar
Lee Kyoung-hoon
Marc Leishman
Shane Lowry
Robert MacIntyre
Rory McIlroy
Phil Mickelson
Collin Morikawa
Kevin Na
Joaquín Niemann
Ryan Palmer
Jon Rahm
Louis Oosthuizen
Carlos Ortiz
Victor Perez
Justin Rose
Scottie Scheffler
Xander Schauffele
Adam Scott
Webb Simpson
Cameron Smith
Jordan Spieth
Kevin Streelman
Justin Thomas
Matt Wallace
Bubba Watson
Lee Westwood
Matthew Wolff
Gary Woodland
Will Zalatoris
As of May 24, 2021

16. Top 60: Official World Golf Rankings
Charley Hoffman
Ian Poulter
Bernd Wiesberger
Otherwise not exempt. As of June 7, 2021

17. Order of Merit Leaders: International Tours
Brad Kennedy
Wilco Nienaber
Wade Ormsby
2020–21 Asian Tour, PGA Tour of Australasia and Sunshine Tour

18. Special Exemptions
Phil Mickelson

Gained Spots Thru Qualifying Events
Yosuke Asaji
Ryo Ishikawa
Louis Fernando Barco
Paul Barjon
Mario Carmona
Eric Cole
Alvaro Ortiz
Matthias Schmid
Matthew Sharpstene (a)
Hayden Springer
Johannes Veerman
Kyle Westmoreland
Roy Cootes
Rikuya Hoshino
Chan Kim
Taylor Montgomery
Justin Suh
Thomas Aiken
Luis Gagne
Fabián Gómez
Branden Grace
Andrew Kozan (a)
Patrick Rodgers
Hayden Buckley
Rick Lamb
Spencer Ralston (a)
Davis Shore
Greyson Sigg
Chris Baker
Chris Crawford
Taylor Pendrith
Dylan Wu
Jimmy Hervol
Andy Pope
Cameron Young
Zach Zaback
Rafa Cabrera-Bello
Wyndham Clark
Pierceson Coody (a)
Dylan Frittelli
Adam Hadwin
Tom Hoge
Michael Johnson
Kang Sung-hoon
Martin Laird
Peter Malnati
J. T. Poston
Chez Reavie
Charl Schwartzel
Brendan Steele
Erik van Rooyen
Jhonattan Vegas
Bo Hoag
Troy Merritt
Dylan Meyer
Carson Schaake
Robby Shelton
Brian Stuard
Sahith Theegala
Akshay Bhatia
Wilson Furr
John Huh
Sam Ryder
J.J. Spaun
Stephen Allan
Joe Highsmith (a)

Alternates Who Gained Entry*
Cole Hammer (a)
Zack Sucher