| 1st | 60 | Blomqvist / Castroneves / Jarvis | Acura ARX-05 | Meyer Shank Racing W/Curb-Agajanian | 1:08.555 | 1:08.5550 | 1:10.4100 | 1:11.3330 | 1:09.9150 | 1:09.3420 |
| 2nd | 02 | Bamber / Hunter-Reay / Lynn | Cadillac DPi-V.R | Cadillac Racing | 1:08.788 | 1:08.7880 | 1:09.6640 | 1:10.8730 | 1:09.5830 | 1:09.8800 |
| 3rd | 10 | Taylor / Albuquerque / Hartley | Acura ARX-05 | Konica Minolta Acura ARX-05 | 1:08.802 | 1:08.8020 | 1:10.5220 | 1:11.2690 | 1:10.6150 | 1:09.8580 |
| 4th | 5 | Vautier / Duval / Westbrook | Cadillac DPi-V.R | JDC Miller MotorSports | 1:08.853 | 1:08.8530 | 1:10.2700 | 1:10.4060 | 1:10.7860 | 1:09.4380 |
| 5th | 01 | Bourdais / van der Zande / Dixon | Cadillac DPi-V.R | Cadillac Racing | 1:08.905 | 1:08.9050 | 1:09.9930 | 1:10.5960 | 1:10.1190 | 1:09.0400 |
| 6th | 48 | Kobayashi / Rockenfeller / Johnson | Cadillac DPi-V.R | Ally Cadillac | 1:08.984 | 1:08.9840 | 1:10.5000 | 1:12.0350 | 1:10.4240 | 1:09.4250 |
| 7th | 31 | Derani / Pla / Conway | Cadillac DPi-V.R | Whelen Engineering Racing | 1:09.075 | 1:09.0750 | 1:10.0900 | 1:12.8130 | 1:10.2440 | 1:09.7720 |
| 8th | 8 | Farano / Deletraz / Pinto de Andrade | Oreca 07 Gibson | Tower Motorsport | 1:10.613 | 1:12.3600 | 1:10.8870 | no time | 1:11.3200 | 1:10.6130 |
| 9th | 18 | Merriman / Rasmussen / Dalziel | Oreca 07 Gibson | Era Motorsport | 1:11.101 | 1:13.8960 | 1:11.1010 | | 1:11.5930 | 1:11.3520 |
| 10th | 52 | Keating / *Jensen / *Huffaker | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:11.407 | 1:12.3280 | 1:13.8340 | 1:11.9970 | 1:13.5730 | 1:11.4070 |
| 11th | 81 | Hedman / Montoya / Montoya | Oreca 07 Gibson | DragonSpeed USA | 1:11.508 | 1:13.5700 | 1:11.8470 | 1:15.5330 | 1:11.5080 | 1:11.6630 |
| 12th | 11 | Thomas / Nunez / Pierson | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:11.669 | 1:11.9390 | 1:11.6690 | 1:14.6940 | 1:11.7550 | 1:11.9020 |
| 13th | 20 | Andersen / Fjordbach / Scherer | Oreca 07 Gibson | High Class Racing | 1:11.889 | 1:12.0210 | 1:11.8890 | 1:12.7230 | 1:13.2400 | 1:11.9910 |
| 14th | 74 | van Berlo / Fraga / Robinson | Ligier JS P320 Nissan | Riley Motorsports | 1:15.517 | 1:15.5170 | 1:16.3480 | 1:17.3450 | 1:15.6910 | 1:15.5690 |
| 15th | 33 | Jakobsen / Pino / Barbosa | Ligier JS P320 Nissan | Sean Creech Motorsport | 1:15.625 | 1:15.6250 | 1:16.5840 | 1:17.7250 | 1:17.2340 | 1:16.5600 |
| 16th | 54 | Bennett / Braun / Kurtz | Ligier JS P320 Nissan | CORE Autosport | 1:15.676 | 1:17.8130 | 1:16.7320 | | 1:15.6760 | 1:16.1370 |
| 17th | 36 | Andretti / Chaves / Burdon | Ligier JS P320 Nissan | Andretti Autosport | 1:15.798 | 1:17.0300 | 1:16.7780 | | 1:16.7600 | 1:15.7980 |
| 18th | 30 | Balogh / Grist / Siegel | Ligier JS P320 Nissan | Jr III Racing | 1:16.138 | 1:18.4170 | 1:16.7660 | | 1:16.7090 | 1:16.1380 |
| 19th | 13 | Fidani / Bell / Kern | Duqueine D08 Nissan | AWA | 1:16.321 | 1:17.8090 | 1:16.9320 | 1:18.4190 | 1:16.7300 | 1:16.3210 |
| 20th | 38 | Goldburg / Maxson / Shields | Ligier JS P320 Nissan | Performance Tech Motorsports | 1:16.959 | 1:18.6930 | 1:18.1510 | 1:18.9080 | 1:16.9590 | 1:17.4450 |
| 21st | 76 | Mantella / Marcelli / Sarchet | Duqueine D08 Nissan | AWA | 1:17.367 | 1:19.3570 | 1:17.3670 | 1:20.3470 | 1:19.0480 | 1:17.7930 |
| 22nd | 14 | Hawksworth / Barnicoat / Kirkwood | Lexus RC F GT3 | VasserSullivan | 1:18.835 | 1:18.8350 | 1:20.4850 | no time | 1:19.3840 | 1:18.9120 |
| 23rd | 23 | Riberas / Gunn / Gamble | Aston Martin Vantage GT3 | Heart of Racing Team | 1:19.043 | 1:19.0430 | 1:20.3350 | 1:20.6280 | 1:20.4270 | 1:19.9430 |
| 24th | 1 | Snow / Sellers / Johansson | BMW M4 GT3 | Paul Miller Racing | 1:19.118 | 1:19.1180 | 1:20.4940 | 1:21.3010 | 1:19.5000 | 1:19.8150 |
| 25th | 25 | Krohn / De Phillippi / Edwards | BMW M4 GT3 | BMW M Team RLL | 1:19.279 | 1:19.2790 | 1:20.3640 | 1:21.0770 | 1:20.1470 | 1:19.5570 |
| 26th | 62 | Calado / Serra / Rigon | Ferrari 488 GT3 | Risi Competizione | 1:19.352 | 1:19.3520 | 1:20.0930 | 1:20.3880 | 1:19.9070 | 1:19.6490 |
| 27th | 3 | Garcia / Catsburg / Taylor | Chevrolet Corvette C8.R GTD | Corvette Racing | 1:19.444 | 1:19.4440 | 1:20.5110 | 1:19.9190 | 1:20.1570 | 1:19.7180 |
| 28th | 39 | Megennis / *Westphal / *Lewis | Lamborghini Huracán GT3 Evo | CarBahn with Peregrine Racing | 1:19.506 | 1:19.5060 | 1:20.9780 | 1:20.2070 | 1:20.1180 | 1:20.2720 |
| 29th | 42 | Conwright / Holzer / Yount | Lamborghini Huracán GT3 Evo | NTE/SSR | 1:19.522 | 1:19.5220 | 1:20.7090 | 1:20.1140 | 1:19.5900 | 1:20.3050 |
| 30th | 27 | de Angelis / Martin / James | Aston Martin Vantage GT3 | Heart of Racing Team | 1:19.546 | 1:19.5460 | 1:20.5470 | 1:20.8260 | 1:20.7830 | 1:20.0850 |
| 31st | 12 | Heistand / Telitz / Montecalvo | Lexus RC F GT3 | VasserSullivan | 1:19.560 | 1:19.5600 | 1:21.3160 | 1:29.6020 | 1:19.7230 | 1:19.6320 |
| 32nd | 79 | Buhk / Götz / Grenier | Mercedes-AMG GT3 Evo | WeatherTech Racing | 1:19.620 | 1:19.6200 | 1:20.7910 | 1:21.0160 | 1:20.5780 | 1:19.9260 |
| 33rd | 57 | Ward / Ellis / Dienst | Mercedes-AMG GT3 Evo | Winward Racing | 1:19.711 | 1:19.9770 | 1:20.6140 | 1:22.0580 | 1:19.7110 | 1:20.0520 |
| 34th | 16 | Robichon / Heylen / Hardwick | Porsche 991 GT3 R | Wright Motorsports | 1:19.776 | 1:20.0250 | 1:20.9800 | 1:21.0650 | 1:19.7760 | 1:20.3110 |
| 35th | 9 | Nasr / Campbell / Jaminet | Porsche 991 GT3 R | Pfaff Motorsports | 1:19.810 | 1:19.9420 | 1:20.4460 | | 1:19.8100 | 1:20.0850 |
| 36th | 32 | McAleer / Müller / Skeen | Mercedes-AMG GT3 Evo | Team Korthoff Motorsports | 1:19.823 | 1:19.8230 | 1:21.0760 | 1:22.0810 | 1:21.1730 | 1:20.2040 |
| 37th | 96 | Foley / Auberlen / Dinan | BMW M4 GT3 | Turner Motorsport | 1:19.837 | no time | 1:20.9940 | 1:20.5520 | 1:19.8370 | 1:20.0000 |
| 38th | 21 | Mann / Vilander / Pérez Companc | Ferrari 488 GT3 | AF Corse | 1:19.895 | 1:20.0220 | 1:20.4420 | 1:21.8590 | 1:19.9870 | 1:19.8950 |
| 39th | 70 | Iribe / Pepper / Priaulx | McLaren 720S GT3 | Inception Racing | 1:19.962 | 1:20.3900 | 1:20.2190 | 1:20.1770 | 1:19.9620 | 1:19.9630 |
| 40th | 66 | Bechtolsheimer / Farnbacher / Simpson | Acura NSX GT3 | Gradient Racing | 1:20.030 | no time | 1:20.4350 | 1:20.6710 | 1:20.2520 | 1:20.0300 |
| 41st | 47 | Sernagiotto / de Pauw / Lacorte | Ferrari 488 GT3 | Cetilar Racing | 1:20.041 | 1:20.0410 | 1:20.7260 | 1:21.9100 | 1:20.9100 | 1:20.2690 |
| 42nd | 44 | Potter / *Pumpelly / *Lally | Aston Martin Vantage GT3 | Magnus Racing | 1:21.032 | 1:21.4310 | 1:22.2900 | 1:21.3220 | no time | 1:21.0320 |
| 43rd | 99 | Boulle / Ferriol / Legge | Porsche 991 GT3 R | Team Hardpoint | 1:21.470 | 1:21.4700 | 1:22.2480 | no time | 1:21.6760 | 1:21.7270 |