Golfweek’s Heat Index rankings heading into the United States Open shows Rory McIlroy as the No. 1 player in golf.
McIlroy is third in the Official World Golf Rankings and second in the Golfweek/Sagarin rankings, but might be the one to beat at Pebble Beach. The Heat Index likes Hideki Matsuyama (3rd) and Matt Kuchar (4th).
U.S. Open Ranking
| GW/Sagarin | Heat Index | OWGR | |
| Dustin Johnson | 1 | 2 | 2 |
| Rory McIlroy | 2 | 1 | 3 |
| Rickie Fowler | 3 | 8 | 11 |
| Patrick Cantlay | 4 | 6 | 8 |
| Tiger Woods | 5 | 7 | 5 |
| Justin Rose | 6 | 13 | 4 |
| Justin Thomas | 7 | 11 | 7 |
| Tommy Fleetwood | 8 | 9 | 18 |
| Webb Simpson | 9 | 12 | 19 |
| Tony Finau | 10 | 34 | 14 |
| Gary Woodland | 11 | 15 | 25 |
| Brooks Koepka | 12 | 20 | 1 |
| Matt Kuchar | 13 | 4 | 12 |
| Hideki Matsuyama | 14 | 3 | 29 |
| Xander Schauffele | 15 | 14 | 10 |
| Adam Scott | 16 | 10 | 17 |
| Francesco Molinari | 17 | 21 | 6 |
| Paul Casey | 19 | 23 | 15 |
| Louis Oosthuizen | 20 | 42 | 22 |
| Jon Rahm | 21 | 19 | 13 |
| Bryson DeChambeau | 22 | 52 | 9 |
| Marc Leishman | 23 | 28 | 21 |
| Billy Horschel | 24 | 29 | 39 |
| Jason Day | 25 | 27 | 16 |
| Lucas Glover | 26 | 33 | 78 |
| Jordan Spieth | 27 | 22 | 28 |
| Ian Poulter | 28 | 16 | 33 |
| Jim Furyk | 29 | 17 | 48 |
| Tyrell Hatton | 30 | 84 | 42 |
| Brandt Snedeker | 32 | 24 | 44 |
| Emiliano Grillo | 33 | 35 | 53 |
| Henrik Stenson | 34 | 62 | 43 |
| Rafael Cabrera Bello | 35 | 39 | 38 |
| Thomas Pieters | 37 | 43 | 93 |
| Haotong Li | 38 | 48 | 40 |
| Matthew Fitzpatrick | 39 | 31 | 36 |
| Patrick Reed | 40 | 66 | 23 |
| Sergio Garcia | 42 | 56 | 30 |
| Scott Piercy | 43 | 32 | 59 |
| Byeong-Hun An | 44 | 70 | 58 |
| Rory Sabbatini | 45 | 18 | 115 |
| Keegan Bradley | 46 | 77 | 37 |
| Kevin Na | 47 | 49 | 31 |
| Charles Howell III | 49 | 51 | 52 |
| Kevin Kisner | 50 | 53 | 27 |
| Abraham Ancer | 52 | 83 | 66 |
| Graeme McDowell | 53 | 25 | 101 |
| Bubba Watson | 54 | 55 | 20 |
| Cameron Smith | 55 | 105 | 34 |
| C.T. Pan | 57 | 98 | 49 |
| Shane Lowry | 58 | 64 | 32 |
| Matt Wallace | 59 | 60 | 26 |
| Andrew Putnam | 61 | 88 | 50 |
| Joel Dahmen | 62 | 82 | 81 |
| Zach Johnson | 64 | 111 | 95 |
| Alex Noren | 65 | 129 | 41 |
| Daniel Berger | 66 | 97 | 98 |
| Scottie Scheffler | 74 | 72 | 132 |
| Shugo Imahira | 78 | 112 | 70 |
| Jhonattan Vegas | 82 | 76 | 82 |
| Jimmy Walker | 85 | 92 | 104 |
| Lucas Bjerregaard | 86 | 155 | 45 |
| Justin Harding | 88 | 54 | 47 |
| Keith Mitchell | 90 | 103 | 57 |
| Nick Taylor | 91 | 74 | 254 |
| Phil Mickelson | 92 | 134 | 24 |
| Matt Jones | 99 | 46 | 187 |
| Luke List | 102 | 116 | 64 |
| Aaron Baddeley | 103 | 79 | 180 |
| Aaron Wise | 104 | 156 | 72 |
| Chez Reavie | 107 | 95 | 65 |
| Thorbjorn Olesen | 109 | 195 | 60 |
| Si Woo Kim | 116 | 130 | 56 |
| Brian Stuard | 120 | 41 | 165 |
| Branden Grace | 121 | 153 | 54 |
| Martin Kaymer | 128 | 63 | 97 |
| Kiradech Aphibarnrat | 129 | 174 | 46 |
| Erik Van Rooyen | 136 | 121 | 87 |
| Danny Willett | 139 | 154 | 80 |
| Kyoung-Hoon Lee | 142 | 94 | 243 |
| Kyle Stanley | 143 | 253 | 55 |
| Ryan Fox | 158 | 316 | 89 |
| Ernie Els | 165 | 172 | 348 |
| Nathan Lashley | 169 | 224 | 402 |
| Carlos Ortiz | 175 | 260 | 284 |
| Harris English | 182 | 133 | 309 |
| Patton Kizzire | 192 | 216 | 112 |
| J.B. Holmes | 198 | 292 | 51 |
| Roberto Castro | 203 | 304 | 319 |
| Adri Arnaus | 214 | 252 | 146 |
| Sam Horsfield | 219 | 266 | 225 |
| Joseph Bramlett | 222 | 238 | 385 |
| Sam Saunders | 240 | 282 | 326 |
| Jason Dufner | 245 | 194 | 145 |
| Marcus Kinhult | 248 | 451 | 122 |
| Alex Prugh | 266 | 349 | 538 |
| Rob Oppenheim | 268 | 214 | 731 |
| Luke Guthrie | 271 | 235 | 597 |
| Justin Walters | 273 | 207 | 346 |
| Anirban Lahiri | 279 | 287 | 253 |
| Ollie Schniederjans | 308 | 245 | 238 |
| Bernd Wiesberger | 309 | 211 | 143 |
| Julian Etulain | 316 | 149 | 349 |
| Chesson Hadley | 321 | 317 | 102 |
| Sepp Straka | 328 | 277 | 359 |
| Zac Blair | 343 | 342 | 816 |
| Callum Tarren | 373 | 405 | 459 |
| Tom Hoge | 412 | 363 | 355 |
| Dean Burmester | 426 | 429 | 172 |
| Clement Sordet | 438 | 261 | 292 |
| Matthieu Pavon | 440 | 470 | 380 |
| Lee Slattery | 444 | 493 | 370 |
| Billy Hurley III | 449 | N/R | 1166 |
| Mikumu Horikawa | 451 | 398 | 182 |
| Nick Hardy | 457 | N/R | 2072 |
| Renato Paratore | 460 | 432 | 364 |
| Marcus Fraser | 481 | 418 | 467 |
| Brett Drewitt | 483 | 378 | 1017 |
| Cody Gribble | 527 | 331 | 743 |
| Kodai Ichihara | 604 | 542 | 197 |
| Mike Weir | 610 | 489 | 1880 |
| Rhys Enoch | 639 | 481 | 358 |
| Merrick Bremner | 648 | 457 | 409 |
| Brian Davis | 742 | N/R | 2072 |
| Andreas Halvorsen | N/R | N/R | 751 |
| Andy Pope | N/R | N/R | 1986 |
| Austin Eckroat (a) | N/R | N/R | N/R |
| Brandon Wu (a) | N/R | N/R | 2072 |
| Brendon Todd | N/R | N/R | 999 |
| Cameron Young (a) | N/R | N/R | N/R |
| Chan Kim | N/R | 426 | 264 |
| Chandler Eaton (a) | N/R | N/R | N/R |
| Charles Danielson | N/R | N/R | 1461 |
| Chip McDaniel | N/R | N/R | 923 |
| Chun An Yu (a) | N/R | N/R | N/R |
| Collin Morikawa | N/R | N/R | 1039 |
| Connor Arendell | N/R | N/R | 2072 |
| Daniel Hillier (a) | N/R | N/R | 1905 |
| David Toms | N/R | N/R | 1332 |
| Devon Bling (a) | N/R | N/R | 1363 |
| Eric Dietrich | N/R | N/R | 2072 |
| Guillermo Pereira | N/R | N/R | 811 |
| Hayden Shieh | N/R | N/R | 2072 |
| Jovan Rebula (a) | N/R | N/R | 1519 |
| Kevin O’Connell (a) | N/R | N/R | 2072 |
| Luis Gagne | N/R | N/R | 1543 |
| Luke Donald | N/R | 220 | 514 |
| Matt Parziale (a) | N/R | N/R | 1543 |
| Matthew Naumec | N/R | N/R | 2072 |
| Michael Thorbjornsen (a) | N/R | N/R | N/R |
| Noah Norton (a) | N/R | N/R | N/R |
| Richard H. Lee | N/R | N/R | 2072 |
| Ryan Sullivan | N/R | N/R | 2001 |
| Spencer Tibbits (a) | N/R | N/R | N/R |
| Stewart Hagestad (a) | N/R | N/R | 2072 |
| Viktor Hovland (a) | N/R | N/R | 680 |
