| 1st | 2 | Scott Sharp / Ed Brown / Johannes Van Overbeek / Pipo Derani | Ligier JS P2 Honda HPD | Tequila Patrón ESM | 1:39.2490 | 207.8146 |
| 2nd | 60 | John Pew / Oswaldo Negri / A. J. Allmendinger / Olivier Pla | Ligier JS P2 Honda HPD | Michael Shank Racing W/Curb-Agajanian | 1:39.4380 | 207.4187 |
| 3rd | 70 | Joel Miller / Tom Long / Ben Devlin | Mazda Prototype | Mazda Motorsports | 1:39.8280 | 206.6092 |
| 4th | 37 | Nicolas Minassian / Maurizio Mediani / Mikhail Aleshin / Kirill Ladygin | BR 01 Nissan | SMP Racing | 1:39.8990 | 206.4627 |
| 5th | 55 | Jonathan Bomarito / Tristan Nunez / Spencer Pigot | Mazda Prototype | Mazda Motorsports | 1:39.9340 | 206.3903 |
| 6th | 0 | Andrew Meyrick / Katherine Legge / Sean Rayhall / Andreas Wirth | DeltaWing DWC13 Elan | Panoz DeltaWing Racing | 1:39.9550 | 206.3469 |
| 7th | 10 | Ricky Taylor / Jordan Taylor / Max Angelelli | Chevrolet Corvette DP | No. 10 Konica Minolta Corvette DP for Wayne Taylor Racing | 1:39.9730 | 206.3099 |
| 8th | 5 | Christian Fittipaldi / João Barbosa / Filipe Albuquerque / Scott Pruett | Chevrolet Corvette DP | Action Express Racing | 1:39.9950 | 206.2632 |
| 9th | 31 | Eric Curran / Dane Cameron / Simon Pagenaud / Jonathan Adam | Chevrolet Corvette DP | Action Express Racing | 1:40.0110 | 206.2310 |
| 10th | 02 | Scott Dixon / Tony Kanaan / Jamie McMurray / Kyle Larson | Riley Mk XXVI Ford | Ford Chip Ganassi Racing | 1:40.2440 | 205.7514 |
| 11th | 90 | Ryan Dalziel / Marc Goossens / Ryan Hunter-Reay | Chevrolet Corvette DP | VisitFlorida Racing | 1:40.4180 | 205.3958 |
| 12th | 01 | Lawrence Stroll / Alexander Wurz / Brendon Hartley / Andy Priaulx | Riley DP Ford | Ford Chip Ganassi Racing | 1:40.6650 | 204.8904 |
| 13th | 8 | Renger van der Zande / Alex Popow / Chris Cumming / Jack Hawksworth | Oreca FLM 09 Chevrolet | Starworks Motorsport | 1:42.1180 | 201.9759 |
| 14th | 54 | Jon Bennett / Colin Braun / Mark Wilkins / Martin Plowman | Oreca FLM 09 Chevrolet | Core Autosport | 1:42.4230 | 201.3740 |
| 15th | 88 | Mark Kvamme / Sean Johnston / Maro Engel / Felix Rosenqvist | Oreca FLM 09 Chevrolet | Starworks Motorsport | 1:42.4580 | 201.3048 |
| 16th | 20 | Marc Drumwright / Johnny Mowlem / Brian Alder / Lucas Auer | Oreca FLM 09 Chevrolet | BAR1 Motorsports | 1:42.6580 | 200.9137 |
| 17th | 52 | Robert Alon / Tom Kimber-Smith / Jose Gutierrez / Nicholas Boulle | Oreca FLM 09 Chevrolet | PR1/Mathiasen Motorsports | 1:42.9860 | 200.2732 |
| 18th | 50 | Byron Defoor / Dorsey Schroeder / David Hinton / Thomas Grüber / Jim Pace | Riley DP BMW | Highway to Help | 1:43.3300 | 199.6069 |
| 19th | 85 | Chris Miller / Misha Goikhberg / Kenton Koch / Stephen Simpson | Oreca FLM 09 Chevrolet | JDC-Miller Motorsports | 1:43.4910 | 199.2963 |
| 20th | 26 | Adam Merzon / Ryan Eversley / Don Yount / Gustavo Yacaman | Oreca FLM 09 Chevrolet | BAR1 Motorsports | 1:44.0780 | 198.1714 |
| 21st | 38 | James French / Jim Norman / Josh Norman / Brandon Gdovic | Oreca FLM 09 Chevrolet | Performance Tech Motorsports | 1:44.8480 | 196.7166 |
| 22nd | 100 | Lucas Luhr / John Edwards / Kuno Wittmer / Graham Rahal | BMW M6 GTLM | BMW Team RLL | 1:45.0880 | 196.2675 |
| 23rd | 4 | Oliver Gavin / Marcel Fässler / Tommy Milner | Chevrolet Corvette C7.R | Corvette Racing | 1:45.1060 | 196.2337 |
| 24th | 25 | Augusto Farfus / Bill Auberlen / Dirk Werner / Bruno Spengler | BMW M6 GTLM | BMW Team RLL | 1:45.1200 | 196.2080 |
| 25th | 3 | Antonio Garcia / Jan Magnussen / Mike Rockenfeller | Chevrolet Corvette C7.R | Corvette Racing | 1:45.1240 | 196.2000 |
| 26th | 66 | Joey Hand / Sébastien Bourdais / Dirk Müller | Ford GT | Ford Chip Ganassi Racing | 1:45.2480 | 195.9698 |
| 27th | 68 | Alessandro Pier Guidi / Alexandre Prémat / Daniel Serra / Memo Rojas | Ferrari 488 GTE | Scuderia Corsa | 1:45.2660 | 195.9360 |
| 28th | 67 | Ryan Briscoe / Richard Westbrook / Stefan Mücke | Ford GT | Ford Chip Ganassi Racing | 1:45.2690 | 195.9296 |
| 29th | 72 | Andrea Bertolini / Victor Shaytar / Gianmaria Bruni / James Calado | Ferrari 488 GTE | SMP Racing | 1:45.3140 | 195.8459 |
| 30th | 911 | Patrick Pilet / Nick Tandy / Kevin Estre | Porsche 991 RSR | Porsche North America | 1:45.5240 | 195.4564 |
| 31st | 912 | Earl Bamber / Frédéric Makowiecki / Michael Christensen | Porsche 991 RSR | Porsche North America | 1:45.5430 | 195.4210 |
| 32nd | 22 | David MacNeil / Cooper MacNeil / Leh Keen / Shane Van Gisbergen / Gunnar Jeannette | Porsche 991 GT3 R | Alex Job Racing | 1:47.8520 | 191.2384 |
| 33rd | 48 | Mirko Bortolotti / Bryce Miller / Bryan Sellers / Madison Snow | Lamborghini Huracán GT3 | Paul Miller Racing | 1:47.8810 | 191.1868 |
| 34th | 6 | Andrew Davis / Robin Liddell / Lawson Aschenbach / Matt Bell | Audi R8 LMS GT3 | Stevenson Motorsports | 1:47.9490 | 191.0661 |
| 35th | 93 | Ben Keating / Gar Robinson / Jeff Mosing / Eric Foss / Damien Faulkner | Dodge Viper GT3-R | Riley Motorsports | 1:47.9600 | 191.0468 |
| 36th | 30 | Frank Stippler / Klaus Abbelen / Patrick Huisman / Connor De Phillippi / Sven Müller | Porsche 991 GT3 R | Frikadelli Racing | 1:47.9630 | 191.0404 |
| 37th | 33 | Ben Keating / Jeroen Bleekemolen / Dominik Farnbacher / Marc Miller | Dodge Viper GT3-R | Riley Motorsports | 1:48.0000 | 190.9760 |
| 38th | 44 | John Potter / Andy Lally / Marco Seefried / René Rast | Audi R8 LMS GT3 | Magnus Racing | 1:48.0700 | 190.8521 |
| 39th | 23 | Ian James / Alex Riberas / Mario Farnbacher / Wolf Henzler | Porsche 991 GT3 R | Team Seattle / Alex Job Racing | 1:48.1190 | 190.7652 |
| 40th | 73 | Matthew McMurry / Patrick Lindsey / Jörg Bergmeister | Porsche 991 GT3 R | Park Place Motorsports | 1:48.1860 | 190.6477 |
| 41st | 96 | Bret Curtis / Ashley Freiberg / Jens Klingmann / Marco Wittmann | BMW M6 GT3 | Turner Motorsport | 1:48.2070 | 190.6107 |
| 42nd | 11 | Townsend Bell / Bill Sweedler / Edoardo Piscopo / Richard Antinucci | Lamborghini Huracán GT3 | O'Gara Motorsport | 1:48.2530 | 190.5286 |
| 43rd | 63 | Christina Nielsen / Alessandro Balzan / Jeff Segal / Robert Renauer | Ferrari 458 GT3 | Scuderia Corsa | 1:48.2660 | 190.5061 |
| 44th | 540 | Tim Pappas / Andy Pilgrim / Nicky Catsburg / Patrick Long | Porsche 991 GT3 R | Black Swan Racing | 1:48.2810 | 190.4803 |
| 45th | 97 | Michael Marsal / Jesse Krohn / Markus Palttala / Maxime Martin | BMW M6 GT3 | Turner Motorsport | 1:48.3070 | 190.4337 |
| 46th | 28 | Rolf Ineichen / Lance Willsey / Franz Konrad / Fabio Babini / Marc Basseng | Lamborghini Huracán GT3 | Konrad Motorsport | 1:48.3090 | 190.4305 |
| 47th | 9 | Boris Said / Kenny Habul / Dion von Moltke / Tristan Vautier | Audi R8 LMS GT3 | Stevenson Motorsports | 1:48.3210 | 190.4095 |
| 48th | 51 | Peter Mann / Raffaele Giammaria / Matteo Cressoni / Marco Cioci | Ferrari 458 | Spirit of Race | 1:48.3350 | 190.3854 |
| 49th | 16 | Spencer Pumpelly / Corey Lewis / Justin Marks / Kaz Grala / Austin Cindric | Lamborghini Huracán GT3 | Change Racing | 1:48.5590 | 189.9927 |
| 50th | 45 | Pierre Kaffer / Niclas Jönsson / Christopher Haase / Tracy Krohn | Audi R8 | Flying Lizard Motorsports | 1:48.8710 | 189.4472 |
| 51st | 98 | Paul Dalla Lana / Pedro Lamy / Mathias Lauda / Ritchie Stanaway | Aston Martin Vantage GT3 | Aston Martin Racing | 1:48.9110 | 189.3779 |
| 52nd | 007 | Santiago Creel / Antonio Pérez / Ricardo Pérez de Lara / Sergio Pérez / Lars Viljoen | Aston Martin V12 Vantage GT3 | TRG-AMR | 1:49.1750 | 188.9209 |
| 53rd | 21 | Emanuele Busnelli / Jim Michaelian / Kaz Grala | Lamborghini Huracán GT3 | Konrad Motorsport | 1:51.1570 | 185.5509 |