GRAND SLAM CHALLENGE OPEN CHAMPIONSHIP 1 Jon Rahm 28 Lee Westwood 57 Carlos Ortiz 84 Antoine Rozner 141 Jazz Janewattananond 347 Richard Mansell 2 Dustin Johnson 29 Cameron Smith 58 Charley Hoffman 85 Takumi Kanaya 142 Brandt Snedeker 361 Haotong Li 3 Justin Thomas 30 Will Zalatoris 59 Bernd Wiesberger 86 Troy Merritt 144 Rafa Cabrera Bello 385 Louis de Jager
TIER 1 4 Collin Morikawa 31 Phil Mickelson 60 Matt Wallace 87 Harold Varner III 145 Byeong Hun An 478 Ryutaro Nagano 5 Xander Schauffele 32 Marc Leishman 61 Branden Grace 88 Brendan Steele 161 Henrik Stenson 627 Deyen Lawson 6 Bryson DeChambeau 33 Tommy Fleetwood 62 Matt Jones 89 John Catlin 162 Padraig Harrington 637 Aaron Pike 7 Brooks Koepka 34 Sam Burns 63 Mackenzie Hughes 91 Chan Kim 163 Chez Reavie 670 Daniel Hillier 8 Patrick Cantlay 36 Ryan Palmer 64 Matt Kuchar 93 Erik van Rooyen 168 Keith Mitchell 824 Gonzalo Fernandez-Castano 9 Patrick Reed 37 Corey Conners 65 Chris Kirk 95 Rickie Fowler 182 Ryan Fox 871 Jon Thomson 10 Tyrrell Hatton 38 Victor Perez 66 Gary Woodland 97 Dean Burmester 187 Jorge Campillo 976 Nicholas Poppleton 11 Rory McIlroy 39 Garrick Higgo 68 Jason Day 98 Jason Scrivener 188 Joost Luiten 999 Ernie Els TIER 2 12 Harris English 41 Adam Scott 69 Brendon Todd 101 Ryosuke Kinoshita 191 C.T. Pan 999 Darren Clarke 13 Louis Oosthuizen 42 Max Homa 71 Guido Migliozzi 105 Richard Bland 199 Marcus Kinhult 999 Matthias Schmid TIER 5 14 Viktor Hovland TIER 4 43 Stewart Cink 72 Talor Gooch 107 Aaron Rai 201 Romain Langasque 999 Poom Saksansin 15 Webb Simpson 44 Shane Lowry 73 Lanto Griffin 109 Danny Willett 210 Brad Kennedy 999 Cole Hammer 16 Daniel Berger 45 Justin Rose 74 Cameron Tringale 113 Adam Hadwin 219 J.C. Ritchie 999 Abel Gallegos 17 Tony Finau 46 Brian Harman 75 Sebastián Muñoz 115 Lucas Glover 225 Mike Lorenzo-Vera 999 Yuxin Lin 19 Scottie Scheffler 47 Christiaan Bezuidenhout 76 Keegan Bradley 118 Shaun Norris 237 Jaco Ahlers 999 Joe Long 20 Paul Casey 48 Kevin Kisner 77 Emiliano Grillo 122 Zach Johnson 239 Johannes Veerman 999 Sam Bairstow 21 Abraham Ancer 49 Sergio Garcia 78 Joel Dahmen 124 Kurt Kitayama 250 Benjamin Hebert 999 Christoffer Bring 22 Jordan Spieth 51 Robert MacIntyre 79 Martin Kaymer 125 Justin Harding 259 Marcel Schneider 999 Ricardo Celia TIER 3 23 Matt Fitzpatrick 53 Kevin Streelman 80 Rikuya Hoshino 128 Marcus Armitage 291 Rikard Karlberg 999 Daniel Croft 24 Jason Kokrak 54 Russell Henley 81 Andy Sullivan 130 Matthias Schwab 295 Paul Waring 999 Sam Forgan 25 Billy Horschel 55 Lucas Herbert 82 Daniel van Tonder 137 Francesco Molinari 327 Jimmy Walker 999 Ben Hutchinson 26 Joaquin Niemann 56 Ian Poulter 83 Alex Noren 139 Yuki Inamori 344 Richard T. Lee 999 Laird Shepard **TIER 6 IS THE ENTIRE FIELD**