| 1st | 60 | Jarvis / Blomqvist | Acura ARX-05 | Meyer Shank Racing W/Curb-Agajanian | 1:29.580 | 1:29.5800 | 1:31.1850 | 1:32.3370 | 1:31.2170 | 1:29.5810 |
| 2nd | 10 | Taylor / Albuquerque | Acura ARX-05 | Konica Minolta Acura ARX-05 | 1:29.607 | 1:29.7440 | 1:30.7900 | 1:32.7350 | 1:31.9180 | 1:29.6070 |
| 3rd | 01 | van der Zande / Bourdais | Cadillac DPi-V.R | Cadillac Racing | 1:29.820 | 1:30.0480 | 1:31.3870 | 1:32.5950 | 1:32.2090 | 1:29.8200 |
| 4th | 02 | Bamber / Lynn | Cadillac DPi-V.R | Cadillac Racing | 1:30.242 | 1:30.2420 | 1:31.6770 | 1:32.7750 | 1:31.5390 | 1:30.4180 |
| 5th | 31 | Pla / Derani / Conway | Cadillac DPi-V.R | Whelen Engineering Racing | 1:30.500 | 1:30.5000 | 1:31.8790 | 1:34.8750 | 1:32.0060 | 1:30.5290 |
| 6th | 5 | Vautier / Westbrook / Duval | Cadillac DPi-V.R | JDC Miller MotorSports | 1:31.059 | 1:31.0590 | 1:32.0750 | 1:34.5240 | 1:32.5290 | 1:31.3020 |
| 7th | 48 | Rockenfeller / Kobayashi / Johnson | Cadillac DPi-V.R | Ally Cadillac | 1:31.878 | 2:17.0960 | 1:32.0700 | 2:14.9060 | 1:33.9980 | 1:31.8780 |
| 8th | 29 | van Eerd / Van Der Garde / Murry | Oreca 07 Gibson | Racing Team Nederland | 1:32.444 | 1:35.7780 | 1:32.4440 | 1:34.5510 | 1:34.3100 | 1:32.7710 |
| 9th | 52 | Keating / Jensen / Huffaker | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:32.629 | 1:33.9300 | 1:32.9860 | 1:39.9150 | 1:32.6290 | 1:33.5550 |
| 10th | 8 | Farano / Deletraz / Pinto de Andrade | Oreca 07 Gibson | Tower Motorsport | 1:33.042 | 1:35.8380 | 1:33.0420 | 1:35.8840 | 1:33.0720 | 1:34.7860 |
| 11th | 81 | Hedman / Montoya / Montoya | Oreca 07 Gibson | DragonSpeed USA | 1:33.196 | 1:36.1200 | 1:33.1960 | 1:36.1710 | 1:33.8240 | 1:33.5800 |
| 12th | 11 | Thomas / Pierson / Bomarito | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:33.364 | 1:33.9310 | 1:34.4610 | 1:37.0570 | 1:33.3640 | 1:33.9860 |
| 13th | 20 | Andersen / Fjordbach / Scherer | Oreca 07 Gibson | High Class Racing | 1:33.510 | 1:35.4480 | 1:34.0440 | 1:34.7620 | 1:33.5100 | 1:34.5070 |
| 14th | 18 | Merriman / Tilley / Dalziel | Oreca 07 Gibson | Era Motorsport | 1:33.759 | 1:37.6580 | 1:33.7590 | 1:36.9030 | 1:41.1160 | 1:34.4060 |
| 15th | 33 | Barbosa / Jakobsen / Willsey | Ligier JS P320 Nissan | Sean Creech Motorsport | 1:39.669 | no time | 1:41.4630 | 1:42.0900 | 1:41.1660 | 1:39.6690 |
| 16th | 40 | Varrone / Hanratty / Vance | Duqueine D08 Nissan | FastMD Racing | 1:40.028 | 1:40.0280 | 1:41.5440 | 1:45.9080 | 1:40.8210 | 1:43.4020 |
| 17th | 30 | Balogh / Grist / Siegel | Ligier JS P320 Nissan | Jr III Racing | 1:40.489 | 1:42.3920 | 1:41.8250 | 1:41.9940 | 1:40.4890 | 1:41.1720 |
| 18th | 54 | Bennett / Braun / Kurtz | Ligier JS P320 Nissan | CORE Autosport | 1:40.492 | 1:41.2880 | 1:40.4920 | | | |
| 19th | 58 | Sarchet / Maxson / *Dickerson | Ligier JS P320 Nissan | MLT Motorsports | 1:40.590 | 1:40.5900 | 1:42.3110 | | | |
| 20th | 7 | Mantella / Bell / Boyd | Duqueine D08 Nissan | Forty7 Motorsports | 1:40.598 | 1:42.2960 | 1:42.3270 | 1:41.3910 | 1:42.5940 | 1:40.5980 |
| 21st | 74 | Robinson / Fraga / van Berlo | Ligier JS P320 Nissan | Riley Motorsports | 1:40.617 | 1:41.4810 | 1:40.6170 | | | |
| 22nd | 36 | Andretti / Burdon / Chaves | Ligier JS P320 Nissan | Andretti Autosport | 1:40.701 | 1:41.3600 | 1:41.3380 | 1:41.7280 | 1:41.0140 | 1:40.7010 |
| 23rd | 38 | Goldburg / Lindh / Shields | Ligier JS P320 Nissan | Performance Tech Motorsports | 1:40.866 | 1:41.4710 | 1:41.4250 | 1:41.9720 | 1:42.7750 | 1:40.8660 |
| 24th | 6 | Machavern / *de Wilde / *Formal | Duqueine D08 Nissan | Muehlner Motorsports America | 1:41.508 | 1:43.1930 | 1:44.9280 | 1:45.8560 | 1:43.4500 | 1:41.5080 |
| 25th | 13 | Fidani / Kern / *Marcelli | Duqueine D08 Nissan | AWA | 1:41.744 | 1:42.8860 | 1:42.5570 | 1:45.2370 | 1:42.2210 | 1:41.7440 |
| 26th | 25 | De Phillippi / Edwards / Farfus | BMW M4 GT3 | BMW M Team RLL | 1:44.755 | 1:44.7550 | 1:46.7360 | 3:57.9440 | 1:46.6580 | 1:45.5160 |
| 27th | 27 | Gunn / Riberas | Aston Martin Vantage GT3 | Heart of Racing Team | 1:44.803 | 1:44.8030 | 1:47.1160 | 1:46.4110 | 1:46.3560 | 1:45.4760 |
| 28th | 32 | Skeen / McAleer / Müller | Mercedes-AMG GT3 | Team Korthoff Motorsports | 1:45.077 | 1:45.0770 | 1:47.3180 | 1:47.1280 | 1:46.1970 | 1:45.3880 |
| 29th | 62 | Serra / Rigon | Ferrari 488 GT3 | Risi Competizione | 1:45.169 | 1:45.1690 | 1:46.9470 | 1:46.2250 | 1:46.4020 | 1:45.7150 |
| 30th | 14 | Kirkwood / Barnicoat | Lexus RC F GT3 | VasserSullivan | 1:45.215 | 1:45.2150 | 1:47.0910 | 1:48.0650 | 1:46.8100 | 1:45.3380 |
| 31st | 12 | Montecalvo / Telitz / Heistand | Lexus RC F GT3 | VasserSullivan | 1:45.417 | 1:45.4170 | 1:47.1600 | 1:47.5970 | 1:46.2700 | 1:46.2510 |
| 32nd | 96 | Dinan / Foley / Auberlen | BMW M4 GT3 | Turner Motorsport | 1:45.420 | 1:45.4260 | 1:47.1890 | 1:47.1970 | 1:46.4500 | 1:45.4200 |
| 33rd | 9 | Campbell / Jaminet | Porsche 991 GT3 R | Pfaff Motorsports | 1:45.496 | 1:45.5480 | 1:47.1840 | 1:47.2240 | 1:47.0550 | 1:45.4960 |
| 34th | 57 | Ward / Ellis / Dienst | Mercedes-AMG GT3 | Winward Racing | 1:45.631 | 1:45.6310 | 1:47.1340 | 1:46.6700 | 1:46.4950 | 1:46.2910 |
| 35th | 1 | Sellers / Snow / Johansson | BMW M4 GT3 | Paul Miller Racing | 1:45.634 | 1:45.6340 | 1:46.8800 | 1:46.6100 | 1:46.5270 | 1:45.8540 |
| 36th | 79 | Grenier / MacNeil / Engel | Mercedes-AMG GT3 | WeatherTech Racing | 1:45.707 | 1:46.6990 | 1:46.7490 | 1:46.8130 | 1:46.8720 | 1:45.7070 |
| 37th | 66 | Bechtolsheimer / *Simpson / *Farnbacher | Acura NSX GT3 | Gradient Racing | 1:45.742 | no time | 1:48.0130 | 1:45.8280 | 1:46.5880 | 1:45.7420 |
| 38th | 42 | Yount / Conwright / Holzer | Lamborghini Huracán GT3 | NTE/SSR | 1:45.756 | 1:45.7560 | 1:47.4520 | 1:47.1130 | 1:47.6330 | 1:45.8440 |
| 39th | 16 | Hardwick / Robichon / Heylen | Porsche 991 GT3 R | Wright Motorsports | 1:45.762 | 1:45.7620 | 1:47.4210 | 1:49.4570 | 1:46.4780 | 1:46.3600 |
| 40th | 47 | Lacorte / Sernagiotto / Fuoco | Ferrari 488 GT3 | Cetilar Racing | 1:45.916 | 1:45.9160 | 1:46.2420 | 1:46.3210 | 1:46.4600 | 1:45.9990 |
| 41st | 44 | Potter / Lally / Pumpelly | Aston Martin Vantage GT3 | Magnus Racing | 1:46.061 | 1:47.4660 | 1:46.6000 | 1:46.6110 | 1:46.2250 | 1:46.0610 |
| 42nd | 3 | Garcia / Taylor | Chevrolet Corvette C8.R GTD | Corvette Racing | 1:46.092 | 1:46.2590 | 1:46.5750 | 1:46.5440 | 1:47.1040 | 1:46.0920 |
| 43rd | 39 | Megennis / Lewis / Westphal | Lamborghini Huracán GT3 Evo | CarBahn with Peregrine Racing | 1:46.264 | 1:46.2640 | 1:47.5480 | 1:46.3900 | 1:47.4900 | 1:46.2900 |
| 44th | 70 | Pepper / Millroy / Iribe | McLaren 720S GT3 | Inception Racing | 1:46.285 | 1:46.8210 | 1:47.4050 | 1:47.9520 | 1:47.7190 | 1:46.2850 |
| 45th | 23 | de Angelis / Martin / James | Aston Martin Vantage GT3 | Heart of Racing Team | 1:46.309 | 1:46.3090 | 1:46.7380 | 1:46.3840 | 1:46.8850 | 1:46.3430 |
| 46th | 59 | Gallagher / Miller / Holton | McLaren 720S GT3 | Crucial Motorsports | 1:46.314 | 1:46.9360 | 1:47.9250 | 1:51.7170 | 1:48.7460 | 1:46.3140 |
| 47th | 21 | Mann / Pérez Companc / Vilander | Ferrari 488 GT3 | AF Corse | 1:46.335 | 1:47.4970 | 1:47.3810 | 1:46.5110 | 1:46.3350 | 1:46.6930 |
| 48th | 99 | Ferriol / Legge / Wilson | Porsche 991 GT3 R | Team Hardpoint | 1:46.585 | no time | 1:47.6310 | 1:47.4130 | 1:48.1510 | 1:46.5850 |