| 1st | 55 | Harry Tincknell / Jonathan Bomarito / Olivier Pla | Mazda RT24-P | Mazda Team Joest | 1:34.2240 |
| 2nd | 10 | Renger van der Zande / Jordan Taylor / Fernando Alonso / Kamui Kobayashi | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R. | 1:34.5340 |
| 3rd | 77 | Oliver Jarvis / René Rast / Timo Bernhard / Tristan Nunez | Mazda RT24-P | Mazda Team Joest | 1:34.6160 |
| 4th | 31 | Felipe Nasr / Eric Curran / Pipo Derani | Cadillac DPi-V.R | Whelen Engineering Racing | 1:34.8210 |
| 5th | 5 | Filipe Albuquerque / João Barbosa / Mike Conway / Christian Fittipaldi | Cadillac DPi-V.R | Mustang Sampling Racing | 1:34.8850 |
| 6th | 54 | Romain Dumas / Loïc Duval / Colin Braun / Jon Bennett | Nissan Onroak DPi | CORE autosport | 1:34.9350 |
| 7th | 6 | Juan Pablo Montoya / Dane Cameron / Simon Pagenaud | Acura ARX-05 | Acura Team Penske | 1:34.9890 |
| 8th | 7 | Ricky Taylor / Alexander Rossi / Helio Castroneves | Acura ARX-05 | Acura Team Penske | 1:35.0170 |
| 9th | 84 | Simon Trummer / Stephen Simpson / Chris Miller / Juan Piedrahita | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:35.3040 |
| 10th | 85 | Devlin DeFrancesco / Rubens Barrichello / Tristan Vautier / Misha Goikhberg | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:35.4920 |
| 11th | 50 | Agustin Canapino / Kyle Kaiser / William Owen / René Binder | Cadillac DPi-V.R | Juncos Racing | 1:35.5540 |
| 12th | 81 | Ben Hanley / Nicolas Lapierre / James Allen / Henrik Hedman | Oreca 07 Gibson | DragonSpeed | 1:35.9750 |
| 13th | 52 | Gabriel Aubry / Matthew McMurry / Mark Kvamme | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:36.1650 |
| 14th | 18 | Pastor Maldonado / Roberto Gonzalez / Ryan Cullen / Sebastian Saavedra | Oreca 07 Gibson | DragonSpeed | 1:36.7890 |
| 15th | 38 | Kyle Masson / Kris Wright / Robert Masson / Cameron Cassels | Oreca 07 Gibson | Performance Tech Motorsports | 1:38.3210 |
| 16th | 67 | Richard Westbrook / Ryan Briscoe / Scott Dixon | Ford GT | Ford Chip Ganassi Racing | 1:43.0830 |
| 17th | 911 | Nick Tandy / Patrick Pilet / Frédéric Makowiecki | Porsche 991 RSR | Porsche GT Team | 1:43.2230 |
| 18th | 66 | Joey Hand / Sébastien Bourdais / Dirk Müller | Ford GT | Ford Chip Ganassi Racing | 1:43.4310 |
| 19th | 3 | Jan Magnussen / Antonio Garcia / Mike Rockenfeller | Chevrolet Corvette C7.R | Corvette Racing | 1:43.5060 |
| 20th | 912 | Earl Bamber / Mathieu Jaminet | Porsche 991 RSR | Porsche GT Team | 1:43.5240 |
| 21st | 62 | Davide Rigon / Miguel Molina | Ferrari 488 GTE | Risi Competizione | 1:43.6470 |
| 22nd | 24 | John Edwards / Jesse Krohn / Chaz Mostert / Alessandro Zanardi | BMW M8 GTE | BMW Team RLL | 1:43.6650 |
| 23rd | 25 | Connor De Phillippi / Philipp Eng / Colton Herta / Tom Blomqvist | BMW M8 GTE | BMW Team RLL | 1:43.7620 |
| 24th | 4 | Oliver Gavin / Marcel Fässler / Tommy Milner | Chevrolet Corvette C7.R | Corvette Racing | 1:43.8160 |
| 25th | 86 | Trent Hindman / A. J. Allmendinger / Mario Farnbacher / Justin Marks | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:45.5330 |
| 26th | 13 | Victor Franzoni / Marcos Gomes / Francisco Longo | Ferrari 488 GT3 | Via Italia Racing | 1:45.8420 |
| 27th | 540 | Marco Seefried / Matteo Cairoli / Tim Pappas / *Dirk Werner | Porsche 991 GT3 R | Black Swan Racing | 1:45.9190 |
| 28th | 51 | Daniel Serra / Pedro Lamy / Mathias Lauda / Paul Dalla Lana | Ferrari 488 GT3 | Spirit of Race | 1:45.9540 |
| 29th | 71 | Maximilian Buhk / Fabian Schiller / Dominik Baumann / Juan Perez | Mercedes-AMG GT3 | P1 Motorsports | 1:46.0080 |
| 30th | 57 | Ana Beatriz / Katherine Legge / Christina Nielsen / Simona de Silvestro / *Jackie Heinricher | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:46.0170 |
| 31st | 46 | Phil Keen / Emanuele Busnelli / Fabio Babini | Lamborghini Huracán GT3 Evo | Ebimotors srl | 1:46.0810 |
| 32nd | 63 | Jeff Westphal / Cooper MacNeil / Toni Vilander / Dominik Farnbacher | Ferrari 488 GT3 | Scuderia Corsa | 1:46.1470 |
| 33rd | 14 | Richard Heistand / Jack Hawksworth / Nick Cassidy / Austin Cindric | Lexus RC F GT3 | AIM Vasser Sullivan | 1:46.2150 |
| 34th | 9 | Lars Kern / Zacharie Robichon / Dennis Olsen / Scott Hargrove | Porsche 991 GT3 R | Pfaff Motorsports | 1:46.2940 |
| 35th | 99 | Sven Müller / Klaus Bachler / Alfred Renauer / Steffen Görig / Jürgen Häring | Porsche 991 GT3 R | NGT Motorsport | 1:46.3120 |
| 36th | 73 | Patrick Long / Patrick Lindsey / Matt Campbell / Nicholas Boulle | Porsche 991 GT3 R | Park Place Motorsports | 1:46.3190 |
| 37th | 11 | Mirko Bortolotti / Rolf Ineichen / Christian Engelhart / Kang Ling | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:46.3420 |
| 38th | 12 | Frankie Montecalvo / Townsend Bell / Aaron Telitz / Jeff Segal | Lexus RC F GT3 | AIM Vasser Sullivan | 1:46.3970 |
| 39th | 88 | Kelvin van der Linde / Roman de Angelis / Frederic Vervisch / Ian James | Audi R8 LMS GT3 | WRT Speedstar Audi Sport | 1:46.4320 |
| 40th | 33 | Ben Keating / Jeroen Bleekemolen / Felipe Fraga / Luca Stolz | Mercedes-AMG GT3 | Riley Motorsports - Team AMG | 1:46.4400 |
| 41st | 19 | Andrew Davis / Alex Riberas / Will Hardeman / *Markus Winkelhock | Audi R8 LMS GT3 | Moorespeed | 1:46.4760 |
| 42nd | 44 | Marco Mapelli / Andy Lally / Spencer Pumpelly / John Potter | Lamborghini Huracán GT3 Evo | Magnus Racing | 1:46.5340 |
| 43rd | 8 | Ezequiel Pérez Companc / Parker Chase / Christopher Haase / Ryan Dalziel | Audi R8 LMS GT3 | Starworks Motorsport | 1:46.5600 |
| 44th | 29 | Daniel Morad / Dries Vanthoor / Ricardo Feller | Audi R8 LMS GT3 | Montaplast by Land Motorsport | 1:46.6080 |
| 45th | 96 | Jens Klingmann / Dillon Machavern / Robby Foley / Bill Auberlen | BMW M6 GT3 | Turner Motorsport | 1:46.6500 |
| 46th | 47 | Milos Pavlovic / Linus Lundqvist / Don Yount / Brandon Gdovic / Steve Dunn | Lamborghini Huracán GT3 Evo | Precision Performance Motorsports (PPM) | 1:46.7650 |
| 47th | 48 | Andrea Caldarelli / Corey Lewis / Bryan Sellers / Ryan Hardwick | Lamborghini Huracán GT3 | Paul Miller Racing | 1:46.9440 |