| 1st | 7 | Taylor / Castroneves / Rahal | Acura ARX-05 | Acura Team Penske | 1:47.076 | 1:47.7730 | 1:49.0260 | 1:48.3750 | 1:47.8410 | 1:47.0760 |
| 2nd | 90 | McMurry / Cheever / Vautier | Cadillac DPi-V.R | Spirit of Daytona Racing | 1:47.432 | 1:47.4320 | 1:49.1080 | 1:50.8240 | 1:48.3870 | 1:49.2200 |
| 3rd | 22 | Derani / Lapierre / Van Overbeek | Nissan Onroak DPi | Tequila Patron ESM | 1:47.512 | 1:47.8340 | 1:49.1620 | 1:49.4570 | 1:48.6750 | 1:47.5120 |
| 4th | 2 | Pla / *Dalziel / *Sharp | Nissan Onroak DPi | Tequila Patron ESM | 1:47.592 | 1:47.5920 | | 1:49.6940 | 1:48.4610 | 1:48.3460 |
| 5th | 31 | Nasr / Conway / Curran | Cadillac DPi-V.R | Whelen Engineering Racing | 1:47.853 | 1:47.8530 | 1:49.1410 | 1:51.3010 | 1:48.7530 | 1:48.7440 |
| 6th | 38 | O'Ward / Masson / French | Oreca 07 Gibson | Performance Tech Motorsports | 1:47.861 | 1:49.0680 | 1:50.0490 | 1:53.0800 | 1:49.4570 | 1:47.8610 |
| 7th | 6 | Montoya / Cameron / Pagenaud | Acura ARX-05 | Acura Team Penske | 1:48.177 | 1:48.1770 | 1:49.5080 | 1:49.8020 | 1:48.9500 | 1:48.9440 |
| 8th | 77 | Rast / Jarvis / Nunez | Mazda RT24-P | Mazda Team Joest | 1:48.192 | 1:48.1920 | 1:49.0020 | no time | 1:48.2330 | 1:49.1060 |
| 9th | 55 | Bomarito / Tincknell / Pigot | Mazda RT24-P | Mazda Team Joest | 1:48.220 | 1:48.2790 | 1:49.3650 | 1:57.9670 | 1:48.5440 | 1:48.2200 |
| 10th | 5 | Albuquerque / Barbosa / Fittipaldi | Cadillac DPi-V.R | Mustang Sampling Racing | 1:48.256 | 1:48.2560 | 1:49.8770 | 1:49.9660 | 1:48.8050 | 1:50.8420 |
| 11th | 10 | van der Zande / Taylor / Hunter-Reay | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:48.370 | 1:48.3700 | 1:49.2640 | 1:50.5880 | 1:48.4150 | 1:49.1290 |
| 12th | 99 | Simpson / Miller / Goikhberg | Oreca 07 Gibson | JDC-Miller Motorsports | 1:48.742 | 1:48.7420 | 1:50.7970 | | 1:50.6230 | 1:48.9200 |
| 13th | 54 | Braun / Dumas / Bennett | Oreca 07 Gibson | CORE autosport | 1:48.832 | 1:49.1580 | 1:50.1190 | | 1:49.0830 | 1:48.8320 |
| 14th | 52 | Saavedra / Yacaman / Gonzalez | Ligier JS P217 Gibson | AFS/PR1 Mathiasen Motorsports | 1:49.116 | 1:49.4230 | 1:50.2320 | no time | 1:50.0040 | 1:49.1160 |
| 15th | 32 | di Resta / Brundle / Hanson | Ligier JS P217 Gibson | United Autosports | 1:49.304 | 1:49.4880 | 1:50.5310 | 1:50.8770 | 1:49.7940 | 1:49.3040 |
| 16th | 85 | Trummer / Panciatici / Alon | Oreca 07 Gibson | JDC-Miller Motorsports | 1:49.329 | 1:49.3290 | 1:50.9170 | 1:52.2750 | 1:50.3780 | 1:49.5280 |
| 17th | 25 | De Phillippi / Sims / Auberlen | BMW M8 GTLM | BMW Team RLL | 1:55.839 | 1:55.8390 | 1:58.0490 | 1:58.4760 | 1:57.6540 | 1:56.5660 |
| 18th | 62 | Calado / Pier Guidi / Vilander | Ferrari 488 GTE | Risi Competizione | 1:55.897 | 1:55.8970 | 1:58.3030 | 1:58.7820 | 1:57.6020 | 1:57.2440 |
| 19th | 24 | Krohn / Edwards / Catsburg | BMW M8 GTLM | BMW Team RLL | 1:55.985 | 1:55.9850 | 1:57.6220 | 1:57.7410 | 1:58.3600 | 1:56.8050 |
| 20th | 67 | Westbrook / Dixon / Briscoe | Ford GT | Ford Chip Ganassi Racing | 1:56.098 | 1:56.0980 | 1:58.0290 | 1:59.6110 | 1:57.5660 | 1:57.2900 |
| 21st | 66 | Hand / Müller / Bourdais | Ford GT | Ford Chip Ganassi Racing | 1:56.191 | 1:56.1910 | 1:58.3760 | 1:59.0200 | 1:57.3710 | 1:57.1250 |
| 22nd | 912 | Vanthoor / Bruni / Bamber | Porsche 991 RSR | Porsche GT Team | 1:56.251 | 1:56.2510 | 1:58.4660 | 1:59.0600 | 1:57.8430 | 1:56.8220 |
| 23rd | 3 | Garcia / Rockenfeller / Magnussen | Chevrolet Corvette C7.R | Corvette Racing | 1:56.588 | 1:56.5880 | 1:58.6050 | 2:01.4230 | 1:58.6600 | 1:57.9110 |
| 24th | 911 | Tandy / Makowiecki / Pilet | Porsche 991 RSR | Porsche GT Team | 1:56.626 | 1:56.6260 | 1:58.4000 | 1:58.5960 | 1:57.9580 | 1:57.0310 |
| 25th | 4 | Milner / Fässler / Gavin | Chevrolet Corvette C7.R | Corvette Racing | 1:56.900 | 1:56.9000 | 1:58.6480 | 1:59.9340 | 1:58.7480 | 1:57.8730 |
| 26th | 51 | Serra / Lamy / Lauda / Dalla Lana | Ferrari 488 GT3 | Spirit of Race | 1:58.710 | 1:58.7100 | 2:00.6710 | 2:01.7530 | 2:00.4240 | 1:59.5670 |
| 27th | 29 | Mies / van der Linde / Picariello | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 1:59.130 | 1:59.2290 | 2:00.8090 | no time | 2:00.4610 | 1:59.1300 |
| 28th | 15 | Hawksworth / Rayhall / Heinemeier Hansson | Lexus RC F GT3 | 3GT Racing | 1:59.251 | 1:59.2510 | 2:00.7480 | no time | 2:00.4270 | 2:01.1740 |
| 29th | 14 | Marcelli / Baumann / Frommenwiler | Lexus RC F GT3 | 3GT Racing | 1:59.476 | 1:59.4760 | 2:00.6280 | 2:01.0250 | 2:00.9660 | 2:00.5180 |
| 30th | 48 | Snow / Sellers / Lewis | Lamborghini Huracán GT3 | Paul Miller Racing | 1:59.489 | 1:59.4890 | 2:00.9730 | 2:08.8800 | 2:01.2330 | 2:00.4990 |
| 31st | 63 | Jeannette / Balzan / MacNeil | Ferrari 488 GT3 | Scuderia Corsa | 1:59.609 | 1:59.6090 | 2:01.2490 | | 2:01.1860 | 2:00.9190 |
| 32nd | 86 | Legge / Parente / Hindman | Acura NSX GT3 | Michael Shank Racing w/ Curb-Agajanian | 1:59.889 | 2:00.1980 | 2:01.7230 | 2:01.2930 | 2:01.0240 | 1:59.8890 |
| 33rd | 75 | Grenier / Jäger / Habul | Mercedes-AMG GT3 | SunEnergy1 Racing | 1:59.952 | 1:59.9520 | 2:01.5460 | 2:01.2260 | 2:01.1350 | 2:01.2760 |
| 34th | 69 | Dyer / Eversley / Gilsinger | Acura NSX GT3 | HART | 2:00.069 | 2:00.0690 | 2:01.6100 | 2:03.2930 | 2:01.5050 | 2:00.5890 |
| 35th | 64 | Montecalvo / *Sweedler / *Bell | Ferrari 488 GT3 | Scuderia Corsa | 2:00.080 | 2:00.0800 | 2:01.8250 | | 2:01.2440 | 2:00.2120 |
| 36th | 58 | Nielsen / Jaminet / Long / Renauer | Porsche 991 GT3 R | Wright Motorsports | 2:00.097 | 2:00.3780 | 2:01.3750 | 2:02.8110 | 2:00.6350 | 2:00.0970 |
| 37th | 33 | Keating / Bleekemolen / Stolz | Mercedes-AMG GT3 | Mercedes-AMG Team Riley Motorsports | 2:00.326 | 2:00.7430 | 2:01.0070 | 2:07.5670 | 2:01.2500 | 2:00.3260 |
| 38th | 93 | Marks / Aschenbach / Farnbacher | Acura NSX GT3 | Michael Shank Racing w/ Curb-Agajanian | 2:00.337 | no time | 2:01.6390 | 2:00.7840 | 2:00.3370 | |
| 39th | 44 | Potter / Lally / Davis | Audi R8 LMS GT3 | Magnus Racing | 2:00.531 | 2:02.1510 | 2:02.5320 | 2:00.8880 | 2:00.5310 | 2:00.5790 |
| 40th | 36 | Miller / Wittmer / Bechtolsheimer | Acura NSX GT3 | CJ Wilson Racing | 2:00.686 | 2:00.6860 | 2:02.3560 | 2:01.5230 | 2:01.9670 | 2:02.5020 |
| 41st | 71 | Koch / Spinelli / Perez | Mercedes-AMG GT3 | P1 Motorsports | 2:00.717 | 2:00.7170 | 2:01.8690 | 2:03.5960 | 2:01.7210 | 2:04.0250 |
| 42nd | 96 | Yount / Palttala / Machavern | BMW M6 GT3 | Turner Motorsport | 2:00.970 | 2:03.2270 | 2:01.5980 | 2:01.4990 | 2:00.9700 | 2:03.8340 |
| 43rd | 73 | Pappas / Bergmeister / Lindsey | Porsche 991 GT3 R | Park Place Motorsports | 2:01.099 | 2:04.6500 | 2:02.5570 | 2:01.1900 | 2:01.6090 | 2:01.0990 |