| 1st | 77 | Oliver Jarvis / Tristan Nunez / Olivier Pla | Mazda RT24-P | Mazda Team Joest | 1:33.7110 | 220.0470 |
| 2nd | 6 | Juan Pablo Montoya / Dane Cameron / Simon Pagenaud | Acura ARX-05 | Acura Team Penske | 1:34.1540 | 219.0120 |
| 3rd | 55 | Jonathan Bomarito / Harry Tincknell / Ryan Hunter-Reay | Mazda RT24-P | Mazda Team Joest | 1:34.1690 | 218.9790 |
| 4th | 31 | Mike Conway / Felipe Nasr / Pipo Derani / Filipe Albuquerque | Cadillac DPi-V.R | Whelen Engineering Racing | 1:34.2940 | 218.6870 |
| 5th | 10 | Renger van der Zande / Ryan Briscoe / Scott Dixon / Kamui Kobayashi | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:34.4420 | 218.3450 |
| 6th | 85 | Juan Piedrahita / Chris Miller / Matheus Leist / Tristan Vautier | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:34.4540 | 218.3170 |
| 7th | 5 | Sébastien Bourdais / Loïc Duval / João Barbosa | Cadillac DPi-V.R | Mustang Sampling Racing/JDC-Miller MotorSports | 1:35.0470 | 216.9540 |
| 8th | 7 | Helio Castroneves / Ricky Taylor / Alexander Rossi | Acura ARX-05 | Acura Team Penske | 1:44.0650 | 198.1530 |
| 9th | 52 | Ben Keating / Simon Trummer / Nicholas Boulle / Gabriel Aubry | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:37.4460 | 211.6140 |
| 10th | 81 | Ben Hanley / Henrik Hedman / Colin Braun / Harrison Newey | Oreca 07 Gibson | DragonSpeed USA | 1:37.7280 | 211.0030 |
| 11th | 8 | Ryan Dalziel / David Heinemeier Hansson / John Farano / Nicolas Lapierre | Oreca 07 Gibson | Tower Motorsport by Starworks | 1:39.2750 | 207.7140 |
| 12th | 38 | Cameron Cassels / Robert Masson / Kyle Masson / Don Yount | Oreca 07 Gibson | Performance Tech Motorsports | 1:39.3970 | 207.4600 |
| 13th | 18 | Kyle Tilley / Dwight Merriman / Ryan Lewis / Nicolas Minassian | Oreca 07 Gibson | Era Motorsport | 1:42.2620 | 201.6480 |
| 14th | 911 | Nick Tandy / Frédéric Makowiecki / Matt Campbell | Porsche 991 RSR 19 | Porsche GT Team | 1:42.2070 | 201.7560 |
| 15th | 912 | Earl Bamber / Laurens Vanthoor / Mathieu Jaminet | Porsche 991 RSR 19 | Porsche GT Team | 1:42.2560 | 201.6590 |
| 16th | 3 | Antonio Garcia / Jordan Taylor / Nicky Catsburg | Chevrolet Corvette C8.R | Corvette Racing | 1:42.5450 | 201.0910 |
| 17th | 4 | Oliver Gavin / Tommy Milner / Marcel Fässler | Chevrolet Corvette C8.R | Corvette Racing | 1:42.8010 | 200.5910 |
| 18th | 25 | Bruno Spengler / Philipp Eng / Connor De Phillippi / Colton Herta | BMW M8 GTE | BMW Team RLL | 1:42.9410 | 200.3170 |
| 19th | 24 | Augusto Farfus / Jesse Krohn / John Edwards / Chaz Mostert | BMW M8 GTE | BMW Team RLL | 1:43.0890 | 200.0290 |
| 20th | 62 | James Calado / Alessandro Pier Guidi / Daniel Serra / Davide Rigon | Ferrari 488 GTE | Risi Competizione | 1:43.6680 | 198.9170 |
| 21st | 9 | Dennis Olsen / Zacharie Robichon / Lars Kern / Patrick Pilet | Porsche 991 GT3 R | Pfaff Motorsports | 1:45.2370 | 195.9470 |
| 22nd | 63 | Cooper MacNeil / Toni Vilander / Alessandro Balzan / Jeff Westphal | Ferrari 488 GT3 | Scuderia Corsa | 1:45.7130 | 195.0640 |
| 23rd | 57 | Alvaro Parente / Misha Goikhberg / Trent Hindman / A. J. Allmendinger | Acura NSX GT3 | Heinricher Racing w/MSR Curb-Agajanian | 1:45.8370 | 194.8350 |
| 24th | 96 | Bill Auberlen / Robby Foley / Dillon Machavern / Jens Klingmann | BMW M6 GT3 | Turner Motorsport | 1:45.8720 | 194.7710 |
| 25th | 11 | Richard Heistand / Steijn Schothorst / Franck Perera / Albert Costa | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:46.0400 | 194.4640 |
| 26th | 88 | Mirko Bortolotti / Rolf Ineichen / Daniel Morad / Dries Vanthoor | Audi R8 LMS GT3 | WRT Speedstar Audi Sport | 1:46.1750 | 194.2160 |
| 27th | 12 | Frankie Montecalvo / Shane Van Gisbergen / Aaron Telitz / Townsend Bell | Lexus RC F GT3 | AIM Vasser-Sullivan | 1:46.1850 | 194.1980 |
| 28th | 48 | Bryan Sellers / Madison Snow / Corey Lewis / Andrea Caldarelli | Lamborghini Huracán GT3 Evo | Paul Miller Racing | 1:46.1910 | 194.1870 |
| 29th | 86 | Matthew McMurry / Mario Farnbacher / Shinya Michimi | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:46.4780 | 193.6620 |
| 30th | 16 | Ryan Hardwick / Patrick Long / Anthony Imperato / Klaus Bachler | Porsche 991 GT3 R | Wright Motorsports | 1:46.4850 | 193.6500 |
| 31st | 47 | Brandon Gdovic / Eric Lux / Mark Kvamme / Jonathan Hoggard | Lamborghini Huracán GT3 Evo | Precision Performance Motorsports | 1:46.8350 | 193.0160 |
| 32nd | 98 | Pedro Lamy / Ross Gunn / Mathias Lauda / Andrew Watson | Aston Martin Vantage GT3 | Aston Martin Racing | 1:46.8800 | 192.9350 |
| 33rd | 23 | Ian James / Roman de Angelis / Nicki Thiim / Alex Riberas | Aston Martin Vantage GT3 | Heart of Racing Team | 1:47.0410 | 192.6440 |
| 34th | 19 | Christina Nielsen / Katherine Legge / Tatiana Calderón / Rahel Frey | Lamborghini Huracán GT3 Evo | GEAR Racing powered by GRT Grasser | 1:47.1480 | 192.4520 |
| 35th | 74 | Gar Robinson / Lawson Aschenbach / Ben Keating / Felipe Fraga | Mercedes-AMG GT3 | Riley Motorsports | 1:47.2730 | 192.2270 |
| 36th | 44 | Andy Lally / John Potter / Spencer Pumpelly / Marco Mapelli | Lamborghini Huracán GT3 Evo | GRT Magnus | no time | |
| 37th | 14 | Parker Chase / Jack Hawksworth / Michael de Quesada / Kyle Busch | Lexus RC F GT3 | AIM Vasser-Sullivan | no time | |
| 38th | 54 | Tim Pappas / Jeroen Bleekemolen / Sven Müller / Trenton Estep | Porsche 991 GT3 R | Black Swan Racing | no time | |