| 1st | 31 | Nasr / Derani / Curran | Cadillac DPi-V.R | Whelen Engineering Racing | 1:08.419 | 1:08.4570 | 1:08.8690 | no time | 1:09.0930 | 1:08.4190 |
| 2nd | 7 | Taylor / Castroneves / Rahal | Acura ARX-05 | Acura Team Penske | 1:08.598 | 1:08.5980 | 1:10.0220 | 1:12.6350 | 1:09.7280 | 1:09.0410 |
| 3rd | 5 | Albuquerque / Barbosa / Conway | Cadillac DPi-V.R | Mustang Sampling Racing | 1:08.629 | 1:08.6290 | 1:09.6510 | 1:12.3110 | 1:09.4570 | 1:09.1150 |
| 4th | 6 | Pagenaud / Cameron / Montoya | Acura ARX-05 | Acura Team Penske | 1:08.802 | 1:08.8020 | 1:09.9090 | 1:10.5210 | 1:09.0950 | 1:09.6670 |
| 5th | 77 | Bernhard / Nunez / Jarvis | Mazda RT24-P | Mazda Team Joest | 1:08.847 | 1:08.8470 | 1:09.8240 | 1:11.4780 | 1:09.9410 | 1:09.3450 |
| 6th | 55 | Tincknell / Pla / Bomarito | Mazda RT24-P | Mazda Team Joest | 1:09.204 | 1:09.2040 | 1:10.0410 | 1:10.4050 | 1:10.2530 | 1:09.9870 |
| 7th | 84 | Trummer / Simpson / Miller | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:09.243 | 1:09.2430 | 1:10.1260 | 1:11.3940 | 1:10.8130 | 1:09.9490 |
| 8th | 10 | van der Zande / Taylor / Vaxiviere | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R. | 1:09.253 | 1:09.2530 | 1:09.7810 | 1:10.4960 | 1:09.7090 | 1:09.3010 |
| 9th | 85 | Goikhberg / Piedrahita / Vautier | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:09.347 | 1:09.6730 | 1:09.9220 | 1:10.1090 | 1:09.3470 | 1:09.5170 |
| 10th | 50 | Pigot / Binder / Owen | Cadillac DPi-V.R | Juncos Racing | 1:09.507 | 1:09.5070 | 1:10.4490 | 1:11.1430 | 1:10.5550 | 1:09.8630 |
| 11th | 54 | Bennett / Braun / Dumas | Nissan Onroak DPi | CORE autosport | 1:09.716 | 1:11.5110 | 1:10.1680 | | 1:09.9920 | 1:09.7160 |
| 12th | 38 | Masson / Cassels / *Evans | Oreca 07 Gibson | Performance Tech Motorsports | 1:10.722 | 1:10.7220 | 1:12.3470 | 1:14.9570 | 1:11.3810 | 1:11.3980 |
| 13th | 52 | McMurry / Aubry / Kellett | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:10.853 | 1:10.8530 | 1:11.8670 | 1:13.7800 | 1:11.0250 | 1:11.2090 |
| 14th | 62 | Calado / Pier Guidi / Serra | Ferrari 488 GTE | Risi Competizione | 1:15.639 | 1:15.6390 | 1:16.6730 | 1:16.9280 | 1:16.7080 | 1:15.7570 |
| 15th | 3 | Garcia / Rockenfeller / Magnussen | Chevrolet Corvette C7.R | Corvette Racing | 1:15.702 | 1:15.7020 | 1:17.0460 | 1:17.8490 | 1:16.8690 | 1:16.3690 |
| 16th | 24 | Edwards / Eng / Krohn | BMW M8 GTE | BMW Team RLL | 1:15.784 | 1:15.7840 | 1:17.1590 | 1:17.0700 | 1:17.0310 | 1:16.2370 |
| 17th | 912 | Vanthoor / Bamber / Jaminet | Porsche 991 RSR | Porsche GT Team | 1:15.842 | 1:15.8420 | 1:17.0250 | | 1:17.1130 | 1:16.6160 |
| 18th | 66 | Hand / Bourdais / Müller | Ford GT | Ford Chip Ganassi Racing | 1:15.856 | 1:15.8560 | 1:16.9420 | 1:16.8230 | 1:16.5520 | 1:16.8140 |
| 19th | 67 | Westbrook / Briscoe / Dixon | Ford GT | Ford Chip Ganassi Racing | 1:15.967 | 1:15.9670 | 1:16.5420 | 1:16.8990 | 1:16.8080 | 1:16.3650 |
| 20th | 911 | Tandy / Makowiecki / Pilet | Porsche 991 RSR | Porsche GT Team | 1:16.037 | 1:16.0370 | 1:17.1430 | 1:17.7790 | 1:16.9920 | 1:16.5000 |
| 21st | 4 | Gavin / Fässler / Milner | Chevrolet Corvette C7.R | Corvette Racing | 1:16.048 | 1:16.0480 | 1:17.2430 | 1:17.9610 | 1:17.1650 | 1:16.4940 |
| 22nd | 25 | Herta / Blomqvist / De Phillippi | BMW M8 GTE | BMW Team RLL | 1:16.327 | 1:16.3270 | 1:17.2170 | 1:16.9560 | 1:16.7890 | 1:16.3960 |
| 23rd | 33 | Keating / Fraga / Bleekemolen | Mercedes-AMG GT3 | Riley Motorsports - Team AMG | 1:19.275 | 1:19.6650 | 1:19.9340 | no time | 1:19.2750 | 1:19.5960 |
| 24th | 96 | Foley / Auberlen / Machavern | BMW M6 GT3 | Turner Motorsport | 1:19.306 | no time | 1:19.9750 | 1:19.4200 | 1:19.3060 | 1:19.4620 |
| 25th | 44 | Potter / Pumpelly / Lally | Lamborghini Huracán GT3 Evo | Magnus Racing | 1:19.408 | 1:21.2340 | 1:20.4950 | 1:19.7440 | 1:19.4080 | 1:19.8120 |
| 26th | 63 | Westphal / Vilander / MacNeil | Ferrari 488 GT3 | Scuderia Corsa | 1:19.523 | 1:19.7210 | 1:20.3740 | | 1:19.7760 | 1:19.5230 |
| 27th | 48 | Lewis / Sellers / Seefried | Lamborghini Huracán GT3 Evo | Paul Miller Racing | 1:19.530 | 1:19.5300 | 1:20.4050 | 1:22.2980 | 1:19.6700 | 1:20.0530 |
| 28th | 29 | Feller / Mies / Morad | Audi R8 LMS GT3 | Montaplast by Land Motorsport | 1:19.532 | no time | 1:20.0830 | 1:20.8960 | 1:19.6840 | 1:19.5320 |
| 29th | 14 | Chase / Heistand / Hawksworth | Lexus RC F GT3 | AIM Vasser Sullivan | 1:19.596 | 1:20.2600 | 1:20.6820 | 1:20.9680 | 1:19.5960 | 1:19.9690 |
| 30th | 47 | Yount / Michimi / Gdovic | Lamborghini Huracán GT3 Evo | Precision Performance Motorsports (PPM) | 1:19.767 | no time | 1:19.7670 | 1:22.7970 | 1:20.1980 | 1:19.8830 |
| 31st | 86 | Marks / Hindman / *Farnbacher | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:19.820 | 1:19.8200 | 1:20.6170 | | 1:20.0290 | 1:20.1210 |
| 32nd | 9 | Robichon / Hargrove / Kern | Porsche 991 GT3 R | Pfaff Motorsports | 1:19.925 | 1:20.2000 | 1:20.4240 | 1:20.3140 | 1:20.3190 | 1:19.9250 |
| 33rd | 57 | Nielsen / Legge / Figueiredo | Acura NSX GT3 | Heinricher Racing w/Meyer Shank Racing | 1:19.952 | 1:19.9520 | 1:20.4390 | 1:21.0660 | 1:20.5300 | 1:20.1300 |
| 34th | 12 | Montecalvo / Bell / Telitz | Lexus RC F GT3 | AIM Vasser Sullivan | 1:20.042 | 1:20.3230 | 1:20.8890 | 1:20.0420 | 1:20.2880 | 1:20.3830 |