| 1st | 5 | Filipe Albuquerque / Christian Fittipaldi / João Barbosa | Cadillac DPi-V.R | Mustang Sampling Racing | 1:49.7590 |
| 2nd | 31 | Eric Curran / Dane Cameron / *Mike Conway | Cadillac DPi-V.R | Whelen Engineering Racing | 1:50.0760 |
| 3rd | 10 | Jordan Taylor / Ricky Taylor / Alex Lynn | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:50.2280 |
| 4th | 52 | Olivier Pla / Jose Gutierrez / Mike Guasch / *Tom Kimber-Smith | Ligier JS P217 Gibson | PR1/Mathiasen Motorsports | 1:51.3130 |
| 5th | 85 | Stephen Simpson / Chris Miller / Misha Goikhberg | Oreca 07 Gibson | JDC-Miller Motorsports | 1:51.6810 |
| 6th | 55 | Jonathan Bomarito / Tristan Nunez / Spencer Pigot | Mazda RT24-P | Mazda Motorsports | 1:51.8680 |
| 7th | 2 | Ryan Dalziel / Pipo Derani / Scott Sharp / Ed Brown | Nissan Onroak DPi | Tequila Patron ESM | 1:52.0100 |
| 8th | 90 | Renger van der Zande / Marc Goossens / René Rast | Riley Mk.30 Gibson | VisitFlorida Racing | 1:52.2770 |
| 9th | 22 | Johannes Van Overbeek / Ed Brown / *Brendon Hartley | Nissan Onroak DPi | Tequila Patron ESM | 1:52.5910 |
| 10th | 70 | Joel Miller / Tom Long / Marino Franchitti | Mazda RT24-P | Mazda Motorsports | 1:52.8160 |
| 11th | 8 | Chuck Quinton / Scott Mayer / *Sean Rayhall | Oreca FLM 09 Chevrolet | Starworks Motorsports | 1:56.1200 |
| 12th | 26 | Gustavo Yacaman / Colin Thompson / Chapman Ducote / Marc Drumwright | Oreca FLM 09 Chevrolet | BAR 1 Motorsports | 1:57.4400 |
| 13th | 66 | Joey Hand / Sébastien Bourdais / Dirk Müller | Ford GT | Ford Chip Ganassi Racing | 1:58.8940 |
| 14th | 67 | Ryan Briscoe / Richard Westbrook / Scott Dixon | Ford GT | Ford Chip Ganassi Racing | 1:59.1590 |
| 15th | 25 | Alexander Sims / Kuno Wittmer / Bill Auberlen | BMW M6 GTLM | BMW Team RLL | 1:59.1830 |
| 16th | 62 | Toni Vilander / James Calado / Juan Pablo Montoya | Ferrari 488 GTE | Risi Competizione | 1:59.1860 |
| 17th | 4 | Oliver Gavin / Marcel Fässler / Tommy Milner | Chevrolet Corvette C7.R | Corvette Racing | 1:59.3520 |
| 18th | 3 | Jan Magnussen / Mike Rockenfeller / Antonio Garcia | Chevrolet Corvette C7.R | Corvette Racing | 1:59.4410 |
| 19th | 912 | Dirk Werner / Patrick Pilet / Laurens Vanthoor | Porsche 991 RSR | Porsche GT Team | 1:59.4470 |
| 20th | 24 | Martin Tomczyk / John Edwards / Nicky Catsburg | BMW M6 GTLM | BMW Team RLL | 1:59.5990 |
| 21st | 54 | Colin Braun / Niclas Jönsson / Jon Bennett | Porsche 991 GT3 R | Core Autosport | 2:02.6910 |
| 22nd | 57 | Andrew Davis / Lawson Aschenbach / Matt Bell | Audi R8 LMS GT3 | Stevenson Motorsports | 2:03.1020 |
| 23rd | 73 | Matthew McMurry / Jörg Bergmeister / *Patrick Lindsey | Porsche 991 GT3 R | Park Place Motorsports | 2:03.1120 |
| 24th | 28 | Spencer Pumpelly / Daniel Morad / Michael de Quesada | Porsche 991 GT3 R | Alegra Motorsports | 2:03.1720 |
| 25th | 14 | Sage Karam / Scott Pruett / Ian James / Robert Alon | Lexus RCF GT3 | 3GT Racing | 2:03.2290 |
| 26th | 29 | Christopher Mies / Connor De Phillippi / Jules Gounon | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 2:03.2790 |
| 27th | 27 | Paolo Ruberti / Cedric Sbirrazzuoli / Lawrence DeGeorge | Lamborghini Huracán GT3 | Dream Racing Motorsport | 2:03.2930 |
| 28th | 23 | Townsend Bell / Frankie Montecalvo / Bill Sweedler | Audi R8 LMS GT3 | Alex Job Racing | 2:03.4310 |
| 29th | 50 | Gunnar Jeannette / Cooper MacNeil | Mercedes-AMG GT3 | Riley Motorsports - WeatherTech Racing | 2:03.5770 |
| 30th | 11 | Mirko Bortolotti / Christian Engelhart / Rolf Ineichen / Richard Antinucci | Lamborghini Huracán GT3 | GRT Grasser Racing Team | 2:03.5960 |
| 31st | 75 | Boris Said / Kenny Habul / Tristan Vautier | Mercedes-AMG GT3 | SunEnergy1 Racing | 2:03.7290 |
| 32nd | 93 | Mark Wilkins / Katherine Legge / Andy Lally | Acura NSX GT3 | Michael Shank Racing w/Curb-Agajanian | 2:03.8760 |
| 33rd | 86 | Jeff Segal / Oswaldo Negri / Tom Dyer | Acura NSX GT3 | Michael Shank Racing w/Curb-Agajanian | 2:03.9210 |
| 34th | 46 | Fabio Babini / Emanuele Busnelli | Lamborghini Huracán GT3 | Ebimotors | 2:03.9670 |
| 35th | 48 | Bryan Sellers / Madison Snow / Dion von Moltke | Lamborghini Huracán GT3 | Paul Miller Racing | 2:04.1780 |
| 36th | 18 | Brandon Gdovic / Zach Claman / Emmanuel Anassis / Anthony Massari | Lamborghini Huracán GT3 | DAC Motorsports | 2:05.8340 |