| 1st | 31 | Eric Curran / Dane Cameron / Seb Morris / Mike Conway | Cadillac DPi-V.R | Action Express Racing | 1:37.7970 |
| 2nd | 5 | João Barbosa / Christian Fittipaldi / Filipe Albuquerque | Cadillac DPi-V.R | Action Express Racing | 1:38.1560 |
| 3rd | 10 | Ricky Taylor / Jordan Taylor / Max Angelelli / Jeff Gordon | Cadillac DPi-V.R | Wayne Taylor Racing | 1:38.5240 |
| 4th | 55 | Tristan Nunez / Jonathan Bomarito / Spencer Pigot / Miller / Long | Mazda RT24-P | Mazda Motorsports | 1:39.6530 |
| 5th | 90 | Renger van der Zande / Marc Goossens | Riley Mk.30 Gibson | VisitFlorida Racing | 1:39.8040 |
| 6th | 67 | Ryan Briscoe / Richard Westbrook / Scott Dixon | Ford GT | Ford Chip Ganassi Racing | 1:45.4050 |
| 7th | 66 | Joey Hand / Dirk Müller | Ford GT | Ford Chip Ganassi Racing | 1:45.5490 |
| 8th | 3 | Antonio Garcia / Jan Magnussen | Chevrolet Corvette C7.R | Corvette Racing | 1:45.5600 |
| 9th | 62 | Toni Vilander | Ferrari 488 GTE | Risi Competizione | 1:45.6210 |
| 10th | 911 | Patrick Pilet / Dirk Werner | Porsche 991 RSR | Porsche GT Team | 1:45.7590 |
| 11th | 4 | Oliver Gavin / Tommy Milner | Chevrolet Corvette C7.R | Corvette Racing | 1:45.8110 |
| 12th | 25 | John Edwards / Martin Tomczyk / Bruno Spengler | BMW M6 GTLM | BMW Team RLL | 1:45.8520 |
| 13th | 912 | Michael Christensen / Laurens Vanthoor | Porsche 991 RSR | Porsche GT Team | 1:45.9470 |
| 14th | 29 | Connor De Phillippi / Christopher Mies | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 1:46.6210 |
| 15th | 46 | Emanuele Busnelli / Fabio Babini | Lamborghini Huracán GT3 | Ebimotors | 1:47.4190 |
| 16th | 33 | Ben Keating / Jeroen Bleekemolen | Mercedes-AMG GT3 | Riley Motorsports - Team AMG | 1:47.5350 |
| 17th | 9 | Matt Bell / Lawson Aschenbach | Audi R8 LMS GT3 | Stevenson Motorsports | 1:47.6260 |
| 18th | 93 | Andy Lally / Katherine Legge / Mark Wilkins / Graham Rahal | Acura NSX | Michael Shank Racing | 1:47.7130 |
| 19th | 75 | Boris Said / Kenny Habul / Tristan Vautier | Mercedes-AMG GT3 | SunEnergy1 Racing | 1:47.7220 |
| 20th | 28 | Carlos de Quesada / Daniel Morad / Jesse Lazare / Michael de Quesada / Michael Christensen | Porsche 991 GT3 R | Alegra Motorsports | 1:47.9100 |
| 21st | 50 | Cooper MacNeil / Gunnar Jeannette / Shane Van Gisbergen | Mercedes-AMG GT3 | Riley Motorsports - WeatherTech Racing | 1:47.9280 |
| 22nd | 54 | Jon Bennett / Colin Braun | Porsche 991 GT3 R | Core Autosport | 1:47.9410 |
| 23rd | 27 | Lawrence DeGeorge / Cedric Sbirrazzuoli / Paolo Ruberti | Lamborghini Huracán GT3 | Dream Racing Motorsport | 1:48.0110 |
| 24th | 63 | Christina Nielsen / Alessandro Balzan | Ferrari 488 GT3 | Scuderia Corsa | 1:48.0220 |
| 25th | 86 | Jeff Segal / Oswaldo Negri / Tom Dyer / Ryan Hunter-Reay | Acura NSX | Michael Shank Racing | 1:48.0800 |
| 26th | 11 | Rolf Ineichen / Christian Engelhart / Mirko Bortolotti / Ezequiel Pérez Companc | Lamborghini Huracán GT3 | GRT Grasser Racing Team | 1:48.1500 |
| 27th | 15 | Scott Pruett / Sage Karam / Robert Alon / Jack Hawksworth / Austin Cindric | Lexus RCF GT3 | 3GT Racing | 1:48.3060 |
| 28th | 59 | Nils Reimer / Reinhold Renger / Hari Proczyk / Steve Smith | Porsche 991 GT3 R | Manthey Racing | 1:48.6610 |
| 29th | 21 | Lance Willsey / Franz Konrad / Dennis Trebing | Lamborghini Huracán GT3 | Konrad Motorsport | 1:50.3920 |