| 1st | 6 | Helio Castroneves / Juan Pablo Montoya / Simon Pagenaud | Oreca 07 Gibson | Team Penske | 1:11.3140 | 206.3517 |
| 2nd | 22 | Pipo Derani / Bruno Senna / Johannes Van Overbeek | Nissan Onroak DPi | Tequila Patron ESM | 1:11.4750 | 205.8866 |
| 3rd | 2 | Brendon Hartley / Ryan Dalziel / Scott Sharp | Nissan Onroak DPi | Tequila Patron ESM | 1:11.4990 | 205.8174 |
| 4th | 13 | Mathias Beche / Gustavo Menezes / Nick Heidfeld | Oreca 07 Gibson | Rebellion Racing | 1:11.6230 | 205.4617 |
| 5th | 90 | Renger van der Zande / Jonathan Bomarito / Marc Goossens | Ligier JS P217 Gibson | Visit Florida Racing | 1:11.9340 | 204.5734 |
| 6th | 52 | Olivier Pla / Jose Gutierrez | Ligier JS P217 Gibson | PR1/Mathiasen Motorsports | 1:12.1060 | 204.0858 |
| 7th | 85 | Misha Goikhberg / Stephen Simpson / Chris Miller | Oreca 07 Gibson | JDC-Miller Motorsports | 1:12.3880 | 203.2907 |
| 8th | 5 | Christian Fittipaldi / Filipe Albuquerque / João Barbosa | Cadillac DPi-V.R | Mustang Sampling Racing | 1:12.3930 | 203.2762 |
| 9th | 31 | Eric Curran / Dane Cameron / Mike Conway | Cadillac DPi-V.R | Whelen Engineering Racing | 1:13.0510 | 201.4448 |
| 10th | 38 | James French / Patricio O'Ward / Kyle Masson | Oreca FLM 09 Chevrolet | Performance Tech Motorsports | 1:16.0690 | 193.4528 |
| 11th | 26 | Garett Grist / John Falb / Tomy Drissi | Oreca FLM 09 Chevrolet | BAR1 Motorsports | 1:17.2440 | 190.5109 |
| 12th | 20 | Don Yount / Daniel Burkett / Buddy Rice | Oreca FLM 09 Chevrolet | BAR1 Motorsports | 1:17.6280 | 189.5679 |
| 13th | 10 | Ricky Taylor / Ryan Hunter-Reay | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:12.1210 | 204.0423 |
| 14th | 62 | Toni Vilander / Alessandro Pier Guidi / Giancarlo Fisichella | Ferrari 488 GTE | Risi Competizione | 1:17.6600 | 189.4890 |
| 15th | 3 | Antonio Garcia / Jan Magnussen / Mike Rockenfeller | Chevrolet Corvette C7.R | Corvette Racing | 1:17.7140 | 189.3586 |
| 16th | 66 | Joey Hand / Sébastien Bourdais / Dirk Müller | Ford GT | Ford Chip Ganassi Racing | 1:17.7290 | 189.3216 |
| 17th | 25 | Bill Auberlen / Alexander Sims / Kuno Wittmer | BMW M6 GTLM | BMW Team RLL | 1:17.7310 | 189.3168 |
| 18th | 4 | Tommy Milner / Oliver Gavin / Marcel Fässler | Chevrolet Corvette C7.R | Corvette Racing | 1:17.8230 | 189.0931 |
| 19th | 24 | Martin Tomczyk / John Edwards / Nicky Catsburg | BMW M6 GTLM | BMW Team RLL | 1:18.0840 | 188.4606 |
| 20th | 912 | Gianmaria Bruni / Earl Bamber / Laurens Vanthoor | Porsche 991 RSR | Porsche GT Team | 1:18.1610 | 188.2755 |
| 21st | 911 | Patrick Pilet / Nick Tandy / Dirk Werner | Porsche 991 RSR | Porsche GT Team | 1:18.4260 | 187.6382 |
| 22nd | 63 | Matteo Cressoni / Alessandro Balzan / Christina Nielsen | Ferrari 488 GT3 | Scuderia Corsa | 1:20.6610 | 182.4401 |
| 23rd | 93 | Andy Lally / Katherine Legge / Mark Wilkins | Acura NSX GT3 | Michael Shank Racing w/ Curb-Agajanian | 1:20.7390 | 182.2630 |
| 24th | 15 | Jack Hawksworth / Austin Cindric / Scott Pruett | Lexus RCF GT3 | 3GT Racing | 1:20.7980 | 182.1311 |
| 25th | 29 | Connor De Phillippi / Christopher Mies / Sheldon van der Linde | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 1:20.8300 | 182.0587 |
| 26th | 96 | Justin Marks / Jesse Krohn / Jens Klingmann | BMW M6 GT3 | Turner Motorsport | 1:20.9040 | 181.8913 |
| 27th | 28 | Michael Christensen / Daniel Morad / Michael de Quesada | Porsche 991 GT3 R | Alegra Motorsports | 1:20.9680 | 181.7480 |
| 28th | 86 | Oswaldo Negri / Jeff Segal / Tom Dyer | Acura NSX GT3 | Michael Shank Racing w/ Curb-Agajanian | 1:20.9980 | 181.6805 |
| 29th | 16 | Jeroen Mul / Corey Lewis / Brett Sandberg | Lamborghini Huracán GT3 | Change Racing | 1:21.0630 | 181.5356 |
| 30th | 14 | Sage Karam / Robert Alon / Ian James | Lexus RCF GT3 | 3GT Racing | 1:21.1150 | 181.4181 |
| 31st | 57 | Andrew Davis / Lawson Aschenbach / Matt Bell | Audi R8 LMS GT3 | Stevenson Motorsports | 1:21.2200 | 181.1848 |
| 32nd | 48 | Madison Snow / Bryan Sellers / Trent Hindman | Lamborghini Huracán GT3 | Paul Miller Racing | 1:21.3930 | 180.7985 |
| 33rd | 73 | Patrick Lindsey / Jörg Bergmeister / Matthew McMurry | Porsche 991 GT3 R | Park Place Motorsports | 1:21.4700 | 180.6279 |
| 34th | 23 | Townsend Bell / Frankie Montecalvo / Bill Sweedler | Audi R8 LMS GT3 | Alex Job Racing | 1:21.6480 | 180.2336 |
| 35th | 75 | Dion von Moltke / Kenny Habul / Tristan Vautier | Mercedes-AMG GT3 | SunEnergy1 Racing | 1:21.9150 | 179.6462 |
| 36th | 50 | Cooper MacNeil | Porsche 991 GT3 R | Riley Motorsports - WeatherTech Racing | 1:22.1770 | 179.0733 |
| 37th | 33 | Ben Keating / Jeroen Bleekemolen / Mario Farnbacher | Mercedes-AMG GT3 | Riley Motorsports - Team AMG | 1:21.9590 | 179.5497 |
| 38th | 54 | Jon Bennett / Colin Braun / Niclas Jönsson | Porsche 991 GT3 R | CORE autosport | 1:23.3790 | 176.4919 |
| 39th | 67 | Richard Westbrook / Ryan Briscoe / Scott Dixon | Ford GT | Ford Chip Ganassi Racing | 1:17.7050 | 189.3796 |