| 1st | 22 | Pipo Derani / Timo Bernhard / Johannes Van Overbeek | Nissan Onroak DPi | Tequila Patron ESM | 1:10.4370 | 208.9202 |
| 2nd | 77 | Oliver Jarvis / Lucas di Grassi / Tristan Nunez | Mazda RT24-P | Mazda Team Joest | 1:10.5610 | 208.5533 |
| 3rd | 55 | Jonathan Bomarito / Spencer Pigot / Marino Franchitti | Mazda RT24-P | Mazda Team Joest | 1:10.6000 | 208.4390 |
| 4th | 2 | Norman Nato / Ryan Dalziel / Scott Sharp | Nissan Onroak DPi | Tequila Patron ESM | 1:10.7750 | 207.9224 |
| 5th | 7 | Ricky Taylor / Helio Castroneves / Graham Rahal | Acura ARX-05 | Acura Team Penske | 1:10.7800 | 207.9079 |
| 6th | 5 | Filipe Albuquerque / Christian Fittipaldi / Tristan Vautier | Cadillac DPi-V.R | Mustang Sampling Racing | 1:10.8920 | 207.5796 |
| 7th | 85 | Simon Trummer / Devlin DeFrancesco / Robert Alon | Oreca 07 Gibson | JDC-Miller Motorsports | 1:10.9120 | 207.5217 |
| 8th | 6 | Juan Pablo Montoya / Dane Cameron / Simon Pagenaud | Acura ARX-05 | Acura Team Penske | 1:10.9470 | 207.4187 |
| 9th | 31 | Felipe Nasr / Eric Curran / Gabby Chaves | Cadillac DPi-V.R | Whelen Engineering Racing | 1:10.9810 | 207.3189 |
| 10th | 99 | Stephen Simpson / Misha Goikhberg / Chris Miller | Oreca 07 Gibson | JDC-Miller Motorsports | 1:11.1510 | 206.8248 |
| 11th | 10 | Renger van der Zande / Jordan Taylor / Ryan Hunter-Reay | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:11.4680 | 205.9075 |
| 12th | 52 | Jose Gutierrez / Sebastian Saavedra / William Owen | Oreca 07 Gibson | AFS/PR1 Mathiasen Motorsports | 1:11.7080 | 205.2171 |
| 13th | 38 | James French / Kyle Masson / Nicholas Boulle | Oreca 07 Gibson | Performance Tech Motorsports | 1:11.8590 | 204.7858 |
| 14th | 54 | Jon Bennett / Romain Dumas / Colin Braun | Oreca 07 Gibson | CORE autosport | 1:11.0710 | 207.0566 |
| 15th | 24 | John Edwards / Chaz Mostert / Jesse Krohn | BMW M8 GTE | BMW Team RLL | 1:17.0060 | 191.0983 |
| 16th | 3 | Antonio Garcia / Jan Magnussen / Marcel Fässler | Chevrolet Corvette C7.R | Corvette Racing | 1:17.0300 | 191.0388 |
| 17th | 912 | Earl Bamber / Laurens Vanthoor / Mathieu Jaminet | Porsche 991 RSR | Porsche GT Team | 1:17.2090 | 190.5962 |
| 18th | 67 | Richard Westbrook / Ryan Briscoe / Scott Dixon | Ford GT | Ford Chip Ganassi Racing | 1:17.2200 | 190.5689 |
| 19th | 911 | Patrick Pilet / Frédéric Makowiecki / Nick Tandy | Porsche 991 RSR | Porsche GT Team | 1:17.3690 | 190.2019 |
| 20th | 66 | Joey Hand / Dirk Müller / Sébastien Bourdais | Ford GT | Ford Chip Ganassi Racing | 1:17.3830 | 190.1681 |
| 21st | 25 | Connor De Phillippi / Alexander Sims / Bill Auberlen | BMW M8 GTE | BMW Team RLL | 1:17.4280 | 190.0571 |
| 22nd | 4 | Tommy Milner / Oliver Gavin / Marcel Fässler | Chevrolet Corvette C7.R | Corvette Racing | 1:17.4510 | 190.0008 |
| 23rd | 62 | Toni Vilander / Miguel Molina / Andrea Bertolini | Ferrari 488 GTE | Risi Competizione | 1:17.7740 | 189.2122 |
| 24th | 63 | Daniel Serra / Gunnar Jeannette / Cooper MacNeil | Ferrari 488 GT3 | Scuderia Corsa | 1:19.6950 | 184.6513 |
| 25th | 15 | Jack Hawksworth / David Heinemeier Hansson / Sean Rayhall | Lexus RC F GT3 | 3GT Racing | 1:19.7320 | 184.5644 |
| 26th | 29 | Sheldon van der Linde / Christopher Mies / Daniel Morad | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 1:19.7440 | 184.5370 |
| 27th | 93 | Justin Marks / Mario Farnbacher / Lawson Aschenbach | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:19.8770 | 184.2297 |
| 28th | 48 | Bryan Sellers / Madison Snow / Corey Lewis | Lamborghini Huracán GT3 | Paul Miller Racing | 1:20.0790 | 183.7646 |
| 29th | 86 | Alvaro Parente / Trent Hindman / Katherine Legge | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:20.0950 | 183.7292 |
| 30th | 64 | Matteo Cressoni / Townsend Bell / Frankie Montecalvo | Ferrari 488 GT3 | Scuderia Corsa | 1:20.2970 | 183.2657 |
| 31st | 14 | Philipp Frommenwiler / Dominik Baumann / Kyle Marcelli | Lexus RC F GT3 | 3GT Racing | 1:20.3660 | 183.1096 |
| 32nd | 33 | Ben Keating / Jeroen Bleekemolen / Luca Stolz | Mercedes-AMG GT3 | Mercedes-AMG Team Riley Motorsports | 1:20.5870 | 182.6074 |
| 33rd | 71 | Juan Perez / Felipe Fraga / Maximilian Buhk | Mercedes-AMG GT3 | P1 Motorsports | 1:21.5800 | 180.3833 |
| 34th | 96 | Don Yount / Dillon Machavern | BMW M6 GT3 | Turner Motorsport | 1:21.6500 | 180.2288 |
| 35th | 58 | Christina Nielsen / Patrick Long / Robert Renauer | Porsche 991 GT3 R | Wright Motorsports | no time | |
| 36th | 44 | John Potter / Andy Lally / Andrew Davis | Audi R8 LMS GT3 | Magnus Racing | 1:21.8950 | 179.6897 |
| 37th | 73 | Tim Pappas / Spencer Pumpelly | Porsche 991 GT3 R | Park Place Motorsports | 1:22.6100 | 178.1351 |