| 1st | 6 | Dane Cameron / Simon Pagenaud / Juan Pablo Montoya | Acura ARX-05 | Acura Team Penske | 1:45.8650 | 202.5150 |
| 2nd | 77 | Tristan Nunez / Timo Bernhard / Oliver Jarvis | Mazda RT24-P | Mazda Team Joest | 1:46.0110 | 202.2350 |
| 3rd | 7 | Helio Castroneves / Alexander Rossi / Ricky Taylor | Acura ARX-05 | Acura Team Penske | 1:46.0110 | 202.2350 |
| 4th | 5 | Filipe Albuquerque / Brendon Hartley / João Barbosa | Cadillac DPi-V.R | Mustang Sampling Racing | 1:46.2380 | 201.8037 |
| 5th | 31 | Pipo Derani / Felipe Nasr / Eric Curran | Cadillac DPi-V.R | Whelen Engineering Racing | 1:46.3540 | 201.5832 |
| 6th | 10 | Renger van der Zande / Jordan Taylor / Matthieu Vaxiviere | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R. | 1:46.5300 | 201.2501 |
| 7th | 55 | Jonathan Bomarito / Harry Tincknell / Olivier Pla | Mazda RT24-P | Mazda Team Joest | 1:46.8320 | 200.6820 |
| 8th | 84 | Simon Trummer / Stephen Simpson / Chris Miller | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:47.0860 | 200.2056 |
| 9th | 85 | Juan Piedrahita / Misha Goikhberg / Tristan Vautier | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:47.2750 | 199.8532 |
| 10th | 50 | William Owen / René Binder / Agustin Canapino | Cadillac DPi-V.R | Juncos Racing | 1:47.4780 | 199.4750 |
| 11th | 54 | Jon Bennett / Colin Braun / Romain Dumas | Nissan Onroak DPi | CORE autosport | 1:50.0290 | 194.8497 |
| 12th | 52 | Matthew McMurry / Gabriel Aubry / Anders Fjordbach | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:49.7280 | 195.3856 |
| 13th | 38 | Kyle Masson / Cameron Cassels / Andrew Evans | Oreca 07 Gibson | Performance Tech Motorsports | 1:49.7390 | 195.3647 |
| 14th | 911 | Patrick Pilet / Nick Tandy / Frédéric Makowiecki | Porsche 991 RSR | Porsche GT Team | 1:55.8990 | 184.9812 |
| 15th | 3 | Antonio Garcia / Jan Magnussen / Mike Rockenfeller | Chevrolet Corvette C7.R | Corvette Racing | 1:56.1580 | 184.5692 |
| 16th | 67 | Richard Westbrook / Scott Dixon / Ryan Briscoe | Ford GT | Ford Chip Ganassi Racing | 1:56.1890 | 184.5193 |
| 17th | 4 | Tommy Milner / Oliver Gavin / Marcel Fässler | Chevrolet Corvette C7.R | Corvette Racing | 1:56.2480 | 184.4260 |
| 18th | 24 | Jesse Krohn / John Edwards / Philipp Eng | BMW M8 GTE | BMW Team RLL | 1:56.4860 | 184.0494 |
| 19th | 25 | Tom Blomqvist / Colton Herta / Connor De Phillippi | BMW M8 GTE | BMW Team RLL | 1:56.4860 | 184.0494 |
| 20th | 66 | Sébastien Bourdais / Joey Hand / Dirk Müller | Ford GT | Ford Chip Ganassi Racing | 1:56.7310 | 183.6632 |
| 21st | 912 | Laurens Vanthoor / Mathieu Jaminet / Earl Bamber | Porsche 991 RSR | Porsche GT Team | 1:56.0420 | 184.7543 |
| 22nd | 86 | Trent Hindman / Mario Farnbacher / Justin Marks | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:59.9170 | 178.7836 |
| 23rd | 96 | Robby Foley / Bill Auberlen / Dillon Machavern | BMW M6 GT3 | Turner Motorsport | 2:00.2990 | 178.2155 |
| 24th | 9 | Zacharie Robichon / Scott Hargrove / Lars Kern | Porsche 991 GT3 R | Pfaff Motorsports | 2:00.5040 | 177.9130 |
| 25th | 11 | Rolf Ineichen / Mirko Bortolotti / Rik Breukers | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 2:00.7100 | 177.6088 |
| 26th | 47 | Brandon Gdovic / Lawson Aschenbach / Don Yount | Lamborghini Huracán GT3 Evo | Precision Performance Motorsports (PPM) | 2:00.7750 | 177.5139 |
| 27th | 57 | Christina Nielsen / Katherine Legge / Ana Beatriz | Acura NSX GT3 | Heinricher Racing w/Meyer Shank Racing | 2:00.8090 | 177.4640 |
| 28th | 63 | Cooper MacNeil / Toni Vilander / Jeff Westphal | Ferrari 488 GT3 | Scuderia Corsa | 2:00.9740 | 177.2210 |
| 29th | 12 | Frankie Montecalvo / Townsend Bell / Aaron Telitz | Lexus RC F GT3 | AIM Vasser Sullivan | 2:01.1000 | 177.0375 |
| 30th | 33 | Ben Keating / Jeroen Bleekemolen / Felipe Fraga | Mercedes-AMG GT3 | Riley Motorsports - Team AMG | 2:01.1840 | 176.9136 |
| 31st | 29 | Daniel Morad / Christopher Mies / Ricardo Feller | Audi R8 LMS GT3 | Montaplast by Land Motorsport | 2:01.1890 | 176.9072 |
| 32nd | 8 | Ezequiel Pérez Companc / Parker Chase / Ryan Dalziel | Audi R8 LMS GT3 | Starworks Motorsport | 2:01.3330 | 176.6979 |
| 33rd | 48 | Ryan Hardwick / Bryan Sellers / Corey Lewis | Lamborghini Huracán GT3 Evo | Paul Miller Racing | 2:01.7250 | 176.1282 |
| 34th | 71 | Juan Perez / Maximilian Buhk / Fabian Schiller | Mercedes-AMG GT3 | P1 Motorsports | 2:01.9610 | 175.7870 |
| 35th | 73 | Nicholas Boulle / Patrick Long / Patrick Lindsey | Porsche 991 GT3 R | Park Place Motorsports | 2:02.1500 | 175.5151 |
| 36th | 19 | Will Hardeman / Alex Riberas / Andrew Davis | Audi R8 LMS GT3 | Moorespeed | 2:02.5340 | 174.9647 |
| 37th | 14 | Richard Heistand / Jack Hawksworth / Philipp Frommenwiler | Lexus RC F GT3 | AIM Vasser Sullivan | | |
| 38th | 44 | John Potter / Spencer Pumpelly / Andy Lally | Lamborghini Huracán GT3 Evo | Magnus Racing | 2:02.2050 | 175.4362 |