| 1st | 77 | Jarvis / Nunez / Pla | Mazda RT24-P | Mazda Team Joest | 1:33.711 | 1:33.7110 | 1:34.9110 | 1:35.1190 | 1:37.0760 |
| 2nd | 6 | Montoya / Cameron / Pagenaud | Acura ARX-05 | Acura Team Penske | 1:34.154 | 1:34.1540 | 1:35.7070 | 1:35.8890 | 1:37.2760 |
| 3rd | 55 | Bomarito / Tincknell / Hunter-Reay | Mazda RT24-P | Mazda Team Joest | 1:34.169 | 1:34.1690 | 1:35.3880 | 1:35.4300 | 1:37.1520 |
| 4th | 31 | Conway / Nasr / Derani / Albuquerque | Cadillac DPi-V.R | Whelen Engineering Racing | 1:34.294 | 1:34.2940 | 1:35.2560 | 1:34.9140 | 1:36.6680 |
| 5th | 10 | van der Zande / Briscoe / Dixon / Kobayashi | Cadillac DPi-V.R | Konica Minolta Cadillac DPi-V.R | 1:34.442 | 1:34.4420 | 1:34.6520 | 1:35.2460 | 1:35.3400 |
| 6th | 85 | Piedrahita / Miller / Leist / Vautier | Cadillac DPi-V.R | JDC-Miller MotorSports | 1:34.454 | 1:34.4540 | 1:35.4730 | 1:35.8430 | 1:36.9400 |
| 7th | 5 | Bourdais / Duval / Barbosa | Cadillac DPi-V.R | Mustang Sampling Racing/JDC-Miller MotorSports | 1:34.848 | 1:35.0470 | 1:34.8480 | 1:35.4780 | 1:36.0310 |
| 8th | 7 | Castroneves / Taylor / Rossi | Acura ARX-05 | Acura Team Penske | 1:34.904 | 1:44.0650 | 1:35.3750 | 1:34.9040 | 1:35.7330 |
| 9th | 8 | Dalziel / Heinemeier Hansson / Farano / Lapierre | Oreca 07 Gibson | Tower Motorsport by Starworks | 1:36.043 | 1:39.2750 | 1:36.0430 | 1:37.7400 | 1:37.2300 |
| 10th | 81 | Hanley / Hedman / Braun / Newey | Oreca 07 Gibson | DragonSpeed USA | 1:36.791 | 1:37.7280 | 1:36.7910 | 1:37.4180 | 1:38.2830 |
| 11th | 52 | Keating / Trummer / Boulle / Aubry | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:36.915 | 1:37.4460 | 1:36.9150 | 1:37.0840 | 1:37.2490 |
| 12th | 18 | Tilley / Merriman / Lewis / Minassian | Oreca 07 Gibson | Era Motorsport | 1:37.519 | 1:42.2620 | 1:37.5190 | 1:39.0060 | |
| 13th | 38 | Cassels / Masson / Masson / Yount | Oreca 07 Gibson | Performance Tech Motorsports | 1:37.752 | 1:39.3970 | 1:37.7520 | 1:38.4070 | 1:40.8470 |
| 14th | 24 | Farfus / Krohn / Edwards / Mostert | BMW M8 GTE | BMW Team RLL | 1:42.168 | 1:43.0890 | 1:42.1680 | 1:43.6110 | 1:44.7370 |
| 15th | 911 | Tandy / Makowiecki / Campbell | Porsche 991 RSR 19 | Porsche GT Team | 1:42.207 | 1:42.2070 | 1:42.6740 | 1:43.1500 | 1:43.6290 |
| 16th | 912 | Bamber / Vanthoor / Jaminet | Porsche 991 RSR 19 | Porsche GT Team | 1:42.256 | 1:42.2560 | 1:42.5460 | 1:42.5080 | 1:43.7560 |
| 17th | 3 | Garcia / Taylor / Catsburg | Chevrolet Corvette C8.R | Corvette Racing | 1:42.364 | 1:42.5450 | 1:42.3640 | 1:43.4100 | 1:42.9620 |
| 18th | 4 | Gavin / Milner / Fässler | Chevrolet Corvette C8.R | Corvette Racing | 1:42.801 | 1:42.8010 | 1:43.3750 | 1:43.4770 | 1:44.5580 |
| 19th | 62 | Calado / Pier Guidi / Serra / Rigon | Ferrari 488 GTE | Risi Competizione | 1:42.853 | 1:43.6680 | 1:42.8530 | 1:43.8120 | 1:44.8030 |
| 20th | 25 | Spengler / Eng / De Phillippi / Herta | BMW M8 GTE | BMW Team RLL | 1:42.941 | 1:42.9410 | 1:43.4600 | 1:44.5460 | 1:44.3480 |
| 21st | 88 | Bortolotti / Ineichen / Morad / Vanthoor | Audi R8 LMS GT3 | WRT Speedstar Audi Sport | 1:45.202 | 1:46.1750 | 1:45.2020 | 1:46.3180 | 1:46.8890 |
| 22nd | 9 | Olsen / Robichon / Kern / Pilet | Porsche 991 GT3 R | Pfaff Motorsports | 1:45.237 | 1:45.2370 | 1:45.7410 | 1:46.0930 | |
| 23rd | 48 | Sellers / Snow / Lewis / Caldarelli | Lamborghini Huracán GT3 Evo | Paul Miller Racing | 1:45.367 | 1:46.1910 | 1:45.3670 | 1:46.2310 | 1:47.0940 |
| 24th | 54 | Pappas / Bleekemolen / Müller / Estep | Porsche 991 GT3 R | Black Swan Racing | 1:45.397 | no time | 1:45.3970 | 1:59.2680 | 1:46.4670 |
| 25th | 44 | Lally / Potter / Pumpelly / Mapelli | Lamborghini Huracán GT3 Evo | GRT Magnus | 1:45.399 | no time | 1:45.3990 | 1:46.3000 | 1:47.2930 |
| 26th | 96 | Auberlen / Foley / Machavern / Klingmann | BMW M6 GT3 | Turner Motorsport | 1:45.534 | 1:45.8720 | 1:45.5340 | 1:45.9210 | 1:47.3200 |
| 27th | 11 | Heistand / Schothorst / Perera / Costa | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:45.550 | 1:46.0400 | 1:45.5500 | 1:46.4730 | 1:46.3080 |
| 28th | 63 | MacNeil / Vilander / Balzan / Westphal | Ferrari 488 GT3 | Scuderia Corsa | 1:45.713 | 1:45.7130 | 1:46.0730 | 1:46.3160 | 1:46.4300 |
| 29th | 16 | Hardwick / Long / Imperato / Bachler | Porsche 991 GT3 R | Wright Motorsports | 1:45.728 | 1:46.4850 | 1:45.7280 | 1:46.1280 | 1:47.7990 |
| 30th | 57 | Parente / Goikhberg / Hindman / Allmendinger | Acura NSX GT3 | Heinricher Racing w/MSR Curb-Agajanian | 1:45.837 | 1:45.8370 | 1:46.0470 | 1:46.8190 | |
| 31st | 12 | Montecalvo / Van Gisbergen / Telitz / Bell | Lexus RC F GT3 | AIM Vasser-Sullivan | 1:45.853 | 1:46.1850 | 1:45.8530 | 1:46.5720 | 1:47.7220 |
| 32nd | 74 | Robinson / Aschenbach / Keating / Fraga | Mercedes-AMG GT3 | Riley Motorsports | 1:45.901 | 1:47.2730 | 1:45.9010 | 1:46.7700 | 1:47.9950 |
| 33rd | 14 | Chase / Hawksworth / de Quesada / Busch | Lexus RC F GT3 | AIM Vasser-Sullivan | 1:46.131 | no time | 1:46.1310 | 1:46.7360 | 1:47.3100 |
| 34th | 86 | McMurry / Farnbacher / Michimi | Acura NSX GT3 | Meyer Shank Racing w/ Curb-Agajanian | 1:46.156 | 1:46.4780 | 1:46.1560 | 1:46.9860 | |
| 35th | 98 | Lamy / Gunn / Lauda / Watson | Aston Martin Vantage GT3 | Aston Martin Racing | 1:46.237 | 1:46.8800 | 1:46.2370 | 1:46.5360 | 1:49.2270 |
| 36th | 19 | Nielsen / Legge / Calderón / Frey | Lamborghini Huracán GT3 Evo | GEAR Racing powered by GRT Grasser | 1:46.326 | 1:47.1480 | 1:46.3260 | 1:46.6580 | 1:47.3370 |
| 37th | 47 | Gdovic / Lux / Kvamme / Hoggard | Lamborghini Huracán GT3 Evo | Precision Performance Motorsports | 1:46.660 | 1:46.8350 | 1:46.6600 | 1:47.6710 | 1:47.6470 |
| 38th | 23 | James / de Angelis / Thiim / Riberas | Aston Martin Vantage GT3 | Heart of Racing Team | 1:46.749 | 1:47.0410 | 1:46.7490 | 1:46.9030 | 1:47.5190 |