| 1st | 01 | Renger van der Zande / Sébastien Bourdais / Ryan Hunter-Reay | Cadillac DPi-V.R | Cadillac Racing | 1:45.1660 | 206.0363 |
| 2nd | 31 | Pipo Derani / Tristan Nunez / Mike Conway | Cadillac DPi-V.R | Whelen Engineering Racing | 1:45.1920 | 205.9864 |
| 3rd | 10 | Ricky Taylor / Filipe Albuquerque / Will Stevens | Acura ARX-05 | Konica Minolta Acura ARX-05 | 1:45.3010 | 205.7723 |
| 4th | 02 | Earl Bamber / Alex Lynn / Neel Jani | Cadillac DPi-V.R | Cadillac Racing | 1:45.3230 | 205.7305 |
| 5th | 48 | Mike Rockenfeller / Kamui Kobayashi / José Maria Lopez | Cadillac DPi-V.R | Ally Cadillac | 1:45.5760 | 205.2364 |
| 6th | 60 | Oliver Jarvis / Tom Blomqvist / Stoffel Vandoorne | Acura ARX-05 | Meyer Shank Racing W/Curb-Agajanian | 1:46.2490 | 203.9361 |
| 7th | 5 | Tristan Vautier / Richard Westbrook / Loïc Duval | Cadillac DPi-V.R | JDC Miller MotorSports | 1:51.3380 | 194.6148 |
| 8th | 52 | Ben Keating / Mikkel Jensen / Scott Huffaker | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:49.9540 | 197.0642 |
| 9th | 81 | Henrik Hedman / Juan Pablo Montoya / Sebastian Montoya | Oreca 07 Gibson | DragonSpeed USA LLC | 1:50.5920 | 195.9280 |
| 10th | 18 | Dwight Merriman / Kyle Tilley / Ryan Dalziel | Oreca 07 Gibson | Era Motorsport | 1:51.5840 | 194.1867 |
| 11th | 29 | Frits van Eerd / Giedo Van Der Garde / Dylan Murry | Oreca 07 Gibson | Racing Team Nederland | 1:51.6790 | 194.0209 |
| 12th | 8 | John Farano / Louis Deletraz / Rui Pinto de Andrade | Oreca 07 Gibson | Tower Motorsport | 1:51.8900 | 193.6556 |
| 13th | 20 | Dennis Andersen / Anders Fjordbach / Fabio Scherer | Oreca 07 Gibson | High Class Racing | 1:52.5070 | 192.5934 |
| 14th | 22 | James McGuire / Guy Smith / Duncan Tappy | Oreca 07 Gibson | United Autosports | 1:53.2090 | 191.3993 |
| 15th | 11 | Steven Thomas / Josh Pierson / Jonathan Bomarito | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:50.7320 | 195.6801 |
| 16th | 74 | Gar Robinson / Felipe Fraga / Kay van Berlo | Ligier JS P320 Nissan | Riley Motorsports | 1:57.0480 | 185.1212 |
| 17th | 36 | Jarett Andretti | Ligier JS P320 Nissan | Andretti Autosport | 1:57.0830 | 185.0665 |
| 18th | 6 | Alec Udell / Harry Gottsacker / Ugo de Wilde | Duqueine D08 Nissan | Muehlner Motorsports America | 1:57.6100 | 184.2361 |
| 19th | 40 | Maxwell Hanratty / Todd Archer / James Vance | Duqueine D08 Nissan | FastMD Racing | 1:57.7190 | 184.0655 |
| 20th | 38 | Dan Goldburg / Rasmus Lindh / Cameron Shields | Ligier JS P320 Nissan | Performance Tech Motorsports | 1:58.0870 | 183.4926 |
| 21st | 54 | Jon Bennett / Colin Braun / George Kurtz | Ligier JS P320 Nissan | CORE Autosport | 1:58.7170 | 182.5189 |
| 22nd | 33 | João Barbosa / Malthe Jakobsen / Lance Willsey | Ligier JS P320 Nissan | Sean Creech Motorsport | 1:59.7810 | 180.8967 |
| 23rd | 30 | Ari Balogh / Garett Grist / Dakota Dickerson | Ligier JS P320 Nissan | Jr III Racing | 2:00.2300 | 180.2224 |
| 24th | 13 | Orey Fidani / Kuno Wittmer / Lars Kern | Duqueine D08 Nissan | AWA | 2:00.4870 | 179.8378 |
| 25th | 7 | Mark Kvamme / Anthony Mantella / Matt Bell | Duqueine D08 Nissan | Forty7 Motorsports | 2:00.6240 | 179.6334 |
| 26th | 62 | Daniel Serra / Davide Rigon / Edward Cheever | Ferrari 488 GT3 | Risi Competizione | 1:59.4140 | 181.4535 |
| 27th | 63 | Marco Mapelli / Andrea Caldarelli / Mirko Bortolotti | Lamborghini Huracán GT3 Evo | TR3 Racing | 1:59.4310 | 181.4278 |
| 28th | 16 | Ryan Hardwick / Zacharie Robichon / Jan Heylen | Porsche 991 GT3 R | Wright Motorsports | 1:59.7630 | 180.9241 |
| 29th | 96 | Robby Foley / Bill Auberlen / Michael Dinan | BMW M4 GT3 | Turner Motorsport | 1:59.7880 | 180.8871 |
| 30th | 1 | Bryan Sellers / Madison Snow / Erik Johansson | BMW M4 GT3 | Paul Miller Racing | 1:59.8980 | 180.7213 |
| 31st | 47 | Roberto Lacorte / Giorgio Sernagiotto / Antonio Fuoco | Ferrari 488 GT3 | Cetilar Racing | 1:59.9170 | 180.6923 |
| 32nd | 3 | Antonio Garcia / Jordan Taylor / Nicky Catsburg | Chevrolet Corvette C8.R GTD | Corvette Racing | 1:59.9270 | 180.6778 |
| 33rd | 23 | Ross Gunn / Alex Riberas / Maxime Martin | Aston Martin Vantage GT3 | Heart of Racing Team | 1:59.9570 | 180.6312 |
| 34th | 9 | Matt Campbell / Mathieu Jaminet / Felipe Nasr | Porsche 991 GT3 R | Pfaff Motorsports | 1:59.9820 | 180.5941 |
| 35th | 14 | Jack Hawksworth / Ben Barnicoat / Aaron Telitz | Lexus RC F GT3 | VasserSullivan | 2:00.0020 | 180.5636 |
| 36th | 24 | Philipp Eng / Marco Wittmann / Nick Yelloly | BMW M4 GT3 | BMW M Team RLL | 2:00.0310 | 180.5201 |
| 37th | 32 | Mike Skeen / Stevan McAleer / Daniel Juncadella | Mercedes-AMG GT3 Evo | Gilbert Korthoff Motorsports | 2:00.1760 | 180.3029 |
| 38th | 21 | Simon Mann / Luis Pérez Companc / Toni Vilander | Ferrari 488 GT3 | AF Corse | 2:00.2030 | 180.2626 |
| 39th | 25 | Connor De Phillippi / John Edwards / Augusto Farfus | BMW M4 GT3 | BMW M Team RLL | 2:00.4600 | 179.8780 |
| 40th | 93 | Ashton Harrison / Kyle Marcelli / Tom Long | Acura NSX GT3 | Racers Edge Motorsports with WTR | 2:00.6050 | 179.6607 |
| 41st | 28 | Michael de Quesada / Daniel Morad / Maximilian Götz | Mercedes-AMG GT3 Evo | Alegra Motorsports | 2:00.9190 | 179.1940 |
| 42nd | 79 | Cooper MacNeil / Julien Andlauer / Alessio Picariello | Porsche 991 GT3 R | WeatherTech Racing | 2:00.9510 | 179.1474 |
| 43rd | 59 | Jon Miller / Patrick Gallagher / Paul Holton | McLaren 720S GT3 | Crucial Motorsports | 2:01.2870 | 178.6517 |
| 44th | 66 | Kyffin Simpson / Till Bechtolsheimer / Mario Farnbacher | Acura NSX GT3 | Gradient Racing | 2:01.3520 | 178.5551 |
| 45th | 12 | Frankie Montecalvo / Scott Andrews / Richard Heistand | Lexus RC F GT3 | VasserSullivan | 2:01.5360 | 178.2847 |
| 46th | 97 | Cooper MacNeil / Jules Gounon / Maro Engel | Mercedes-AMG GT3 Evo | WeatherTech Racing | 2:01.9470 | 177.6844 |
| 47th | 39 | Robert Megennis / Corey Lewis / Jeff Westphal | Lamborghini Huracán GT3 Evo | CarBahn with Peregrine Racing | 2:01.9730 | 177.6458 |
| 48th | 27 | Roman de Angelis / Ian James / Tom Gamble | Aston Martin Vantage GT3 | Heart of Racing Team | 2:02.2710 | 177.2129 |
| 49th | 42 | Don Yount / Jaden Conwright / Mateo Llarena | Lamborghini Huracán GT3 Evo | NTE/SSR | 2:05.8340 | 172.1950 |
| 50th | 44 | John Potter / Andy Lally / Spencer Pumpelly | Aston Martin Vantage GT3 | Magnus Racing | no time | |
| 51st | 70 | Brendan Iribe / Ollie Millroy / Jordan Pepper | McLaren 720S GT3 | Inception Racing | no time | |
| 52nd | 99T | Robert Ferriol / Katherine Legge / Stefan Wilson | Porsche 991 GT3 R | Team Hardpoint | no time | |
| 53rd | 57 | Russell Ward / Philip Ellis / Marvin Dienst | Mercedes-AMG GT3 Evo | Winward Racing | 1:59.8480 | 180.7969 |