| 1st | 10 | van der Zande / Taylor / Hunter-Reay | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:36.083 | 1:36.0830 | 1:37.9080 | 1:37.4520 | 1:37.6770 |
| 2nd | 7 | Castroneves / Taylor / Rahal | Acura ARX-05 | Acura Team Penske | 1:36.090 | 1:36.0900 | 1:37.7580 | 1:37.0360 | 1:37.6490 |
| 3rd | 5 | Albuquerque / Barbosa / Fittipaldi | Cadillac DPi-V.R | Mustang Sampling Racing | 1:36.194 | 1:36.1940 | 1:37.6180 | 1:37.3850 | 1:37.2830 |
| 4th | 38 | O'Ward / French / Masson / Miller | Oreca 07 Gibson | Performance Tech Motorsports | 1:36.318 | 1:36.3180 | 1:38.5390 | 1:37.8660 | 1:38.1890 |
| 5th | 90 | McMurry / Cheever / Vautier | Cadillac DPi-V.R | Spirit of Daytona Racing | 1:36.472 | 1:36.4720 | 1:37.9600 | 1:37.2150 | 1:37.1180 |
| 6th | 37 | Frijns / Rosenqvist / Stroll / Juncadella | Oreca 07 Gibson | Jackie Chan DCR Jota | 1:36.492 | 1:36.4920 | 1:38.3150 | 1:37.6200 | 1:37.0460 |
| 7th | 31 | Nasr / Conway / Middleton / Curran | Cadillac DPi-V.R | Whelen Engineering Racing | 1:36.508 | 1:36.5080 | 1:37.4750 | 1:37.7710 | 1:36.8650 |
| 8th | 54 | Braun / Dumas / Duval / Bennett | Oreca 07 Gibson | CORE autosport | 1:36.567 | 1:36.5670 | 1:38.1750 | 1:37.5630 | |
| 9th | 55 | Bomarito / Tincknell / Pigot | Mazda RT24-P | Mazda Team Joest | 1:36.633 | 1:36.6330 | 1:38.1070 | 1:37.5430 | |
| 10th | 6 | Cameron / Montoya / Pagenaud | Acura ARX-05 | Acura Team Penske | 1:36.931 | 1:36.9310 | 1:37.8780 | 1:37.7850 | 1:37.8350 |
| 11th | 78 | Brundle / Tung / Felix da Costa / Habsburg | Oreca 07 Gibson | Jackie Chan DCR Jota | 1:36.982 | 1:36.9820 | 1:38.4800 | 1:37.5300 | 1:38.0900 |
| 12th | 85 | Trummer / DeFrancesco / Cindric / Alon | Oreca 07 Gibson | JDC-Miller Motorsports | 1:37.005 | 1:37.0050 | 1:38.9400 | 1:38.1690 | 1:38.0900 |
| 13th | 23 | Alonso / Norris / Hanson | Ligier JS P217 Gibson | United Autosports | 1:37.008 | 1:37.0080 | 1:38.0110 | 1:37.5570 | 1:38.7950 |
| 14th | 99 | Simpson / Menezes / Miller / Goikhberg | Oreca 07 Gibson | JDC-Miller Motorsports | 1:37.124 | 1:37.1240 | 1:38.5040 | 1:38.1980 | 1:38.1040 |
| 15th | 77 | Jarvis / Rast / Nunez | Mazda RT24-P | Mazda Team Joest | 1:37.178 | no time | 1:38.1750 | 1:37.4280 | 1:37.1780 |
| 16th | 22 | Lapierre / Derani / Van Overbeek | Nissan Onroak DPi | Tequila Patron ESM | 1:37.360 | 1:46.1290 | 1:37.5700 | 1:37.3600 | 1:37.4570 |
| 17th | 2 | Dalziel / Pla / Sharp | Nissan Onroak DPi | Tequila Patron ESM | 1:37.699 | no time | 1:37.9210 | 1:37.6990 | 1:37.8740 |
| 18th | 32 | Senna / di Resta / de Sadeleer / Owen | Ligier JS P217 Gibson | United Autosports | 1:37.924 | 1:38.1860 | 1:38.7240 | 1:37.9240 | 1:38.1450 |
| 19th | 52 | Yacaman / Saavedra / Gonzalez / Boulle | Ligier JS P217 Gibson | AFS/PR1 Mathiasen Motorsports | 1:38.773 | 1:38.7730 | 1:39.4710 | 1:38.8690 | 1:39.0500 |
| 20th | 20 | Popow / Lux / Gaughan / Drumwright | Riley Mk.30 Gibson | BAR1 Motorsports | 1:41.778 | 1:41.7780 | 1:41.7850 | 1:43.8550 | 1:42.4250 |
| 21st | 3 | Magnussen / Rockenfeller / Garcia | Chevrolet Corvette C7.R | Corvette Racing | 1:42.779 | 1:42.7790 | 1:44.5170 | 1:43.9700 | 1:44.4790 |
| 22nd | 66 | Hand / Bourdais / Müller | Ford GT | Ford Chip Ganassi Racing | 1:42.798 | 1:42.7980 | 1:44.0860 | 1:43.6750 | 1:44.0620 |
| 23rd | 912 | Vanthoor / Bruni / Bamber | Porsche 991 RSR | Porsche GT Team | 1:42.927 | 1:42.9270 | 1:44.9900 | 1:44.1980 | 1:44.1190 |
| 24th | 911 | Pilet / Tandy / Makowiecki | Porsche 991 RSR | Porsche GT Team | 1:43.062 | 1:43.0620 | 1:44.5400 | 1:43.9020 | 1:44.1500 |
| 25th | 67 | Westbrook / Briscoe / Dixon | Ford GT | Ford Chip Ganassi Racing | 1:43.091 | 1:43.0910 | 1:44.0540 | 1:43.8590 | 1:44.3290 |
| 26th | 4 | Gavin / Milner / Fässler | Chevrolet Corvette C7.R | Corvette Racing | 1:43.453 | 1:43.4530 | 1:44.4370 | 1:44.1800 | 1:44.4300 |
| 27th | 62 | Vilander / Calado / Rigon / Pier Guidi | Ferrari 488 GTE | Risi Competizione | 1:43.601 | 1:43.6010 | 1:44.0080 | 1:43.9610 | 1:44.4710 |
| 28th | 25 | Sims / Eng / De Phillippi / Auberlen | BMW M8 GTLM | BMW Team RLL | 1:43.948 | 1:43.9480 | 1:45.0220 | 1:45.1620 | 1:44.8680 |
| 29th | 24 | Farfus / Edwards / Catsburg / Krohn | BMW M8 GTLM | BMW Team RLL | 1:44.413 | 1:44.4130 | 1:45.2420 | 1:45.9070 | 1:45.2010 |
| 30th | 51 | Serra / Lamy / Lauda / Dalla Lana | Ferrari 488 GT3 | Spirit of Race | 1:46.049 | 1:46.0490 | 1:47.6630 | 1:47.1650 | 1:48.0160 |
| 31st | 82 | Molina / Griffin / Fuentes / Pérez de Lara / Creel | Ferrari 488 GT3 | Risi Competizione | 1:46.502 | 1:46.5020 | 1:47.9930 | 1:47.0320 | 1:48.5360 |
| 32nd | 11 | Bortolotti / Breukers / Ineichen / Perera | Lamborghini Huracán GT3 | GRT Grasser Racing Team | 1:46.658 | 1:46.6580 | 1:48.2070 | 1:47.5130 | 1:48.6710 |
| 33rd | 15 | Hawksworth / Farnbacher / Pruett / Heinemeier Hansson | Lexus RC F GT3 | 3GT Racing | 1:46.714 | 1:46.7140 | 1:48.4170 | 1:47.4520 | 1:47.6750 |
| 34th | 86 | Parente / Legge / Allmendinger / Hindman | Acura NSX GT3 | Michael Shank Racing w/ Curb-Agajanian | 1:46.790 | 1:47.2510 | 1:48.3790 | 1:46.7900 | 1:48.4470 |
| 35th | 59 | Müller / Cairoli / Proczyk / Walls / Smith | Porsche 991 GT3 R | Manthey-Racing | 1:46.905 | 1:47.5870 | 1:47.6680 | 1:48.0600 | 1:46.9050 |
| 36th | 63 | Balzan / Jeannette / Segal / MacNeil | Ferrari 488 GT3 | Scuderia Corsa | 1:47.055 | 1:47.0550 | 1:48.2970 | 1:47.9460 | 1:50.4790 |
| 37th | 14 | Frommenwiler / Baumann / Marcelli / Junqueira | Lexus RC F GT3 | 3GT Racing | 1:47.186 | 1:47.1860 | 1:48.4580 | 1:47.7550 | 1:48.1040 |
| 38th | 29 | van der Linde / van der Linde / Mies / Schmidt | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 1:47.273 | 1:47.2730 | 1:47.8960 | 1:47.8860 | 1:47.7080 |
| 39th | 58 | Renauer / Jaminet / Long / Nielsen | Porsche 991 GT3 R | Wright Motorsports | 1:47.291 | 1:47.2910 | 1:48.4020 | 1:47.8670 | 1:47.5060 |
| 40th | 33 | Keating / Stolz / Bleekemolen / Christodoulou | Mercedes-AMG GT3 | Mercedes-AMG Team Riley Motorsports | 1:47.338 | 1:47.7960 | 1:47.9640 | 1:47.8480 | 1:47.3380 |
| 41st | 96 | Lawrence / Klingmann / Tomczyk / Yount / Kvamme | BMW M6 GT3 | Turner Motorsport | 1:47.348 | 1:47.3480 | 1:48.6150 | 1:47.8160 | 1:49.8730 |
| 42nd | 44 | Lally / Davis / Winkelhock / Potter | Audi R8 LMS GT3 | Magnus Racing | 1:47.442 | 1:47.4420 | 1:48.1360 | 1:47.5850 | 1:48.2840 |
| 43rd | 64 | Bird / Bell / Montecalvo / Sweedler | Ferrari 488 GT3 | Scuderia Corsa | 1:47.574 | 1:47.8390 | 1:48.0250 | 1:47.5740 | 1:48.5620 |
| 44th | 19 | Lenz / Engelhart / van Splunteren / Pérez Companc / Machiels | Lamborghini Huracán GT3 | GRT Grasser Racing Team | 1:47.627 | 1:51.5310 | 1:48.7510 | 1:47.7310 | 1:47.6270 |
| 45th | 93 | Ledogar / Farnbacher / Aschenbach / Marks | Acura NSX GT3 | Michael Shank Racing w/ Curb-Agajanian | 1:47.848 | 1:48.2390 | 1:48.2520 | 1:47.9050 | 1:47.8480 |
| 46th | 69 | Eversley / Rayhall / Gilsinger / Falb | Acura NSX GT3 | HART | 1:47.862 | 1:47.8620 | 1:48.6030 | 1:48.4890 | 1:48.8470 |
| 47th | 48 | Miller / Sellers / Caldarelli / Snow | Lamborghini Huracán GT3 | Paul Miller Racing | 1:47.883 | 1:48.1810 | 1:48.2700 | 1:48.2100 | 1:47.8830 |
| 48th | 73 | Pappas / Bergmeister / Siedler / Lindsey | Porsche 991 GT3 R | Park Place Motorsports | 1:47.980 | no time | 1:48.9980 | 1:47.9800 | 1:48.1830 |
| 49th | 75 | Habul / Jäger / Engel / Grenier | Mercedes-AMG GT3 | SunEnergy1 Racing | 1:47.998 | 1:48.3260 | 1:48.1350 | 1:47.9980 | 1:48.3660 |
| 50th | 71 | Perez / Spinelli / Koch / Foley | Mercedes-AMG GT3 | P1 Motorsports | 1:48.027 | no time | 1:48.0270 | 1:49.0100 | 1:48.5140 |