| 1st | 01 | van der Zande / Magnussen / Dixon | Cadillac DPi-V.R | Cadillac Chip Ganassi Racing | 1:34.146 | 1:34.6570 | 1:34.1460 | 1:35.0970 |
| 2nd | 60 | Cameron / Pla / Montoya / Allmendinger | Acura ARX-05 | Meyer Shank Racing w/ Curb-Agajanian | 1:34.287 | 1:35.2800 | 1:34.2870 | 1:36.7540 |
| 3rd | 10 | Taylor / Albuquerque / Rossi / Castroneves | Acura ARX-05 | Konica Minolta Acura | 1:34.459 | 1:35.2530 | 1:34.4590 | 1:35.1380 |
| 4th | 48 | Johnson / Kobayashi / Pagenaud / Rockenfeller | Cadillac DPi-V.R | Ally Cadillac Racing | 1:34.519 | 1:34.9180 | 1:34.5190 | 1:35.8170 |
| 5th | 31 | Nasr / Derani / Conway / Elliott | Cadillac DPi-V.R | Whelen Engineering Racing | 1:34.653 | 1:34.8350 | 1:34.6530 | 1:35.7520 |
| 6th | 5 | Vautier / Duval / Bourdais | Cadillac DPi-V.R | Mustang Sampling/JDC-Miller MotorSports | 1:34.726 | 1:35.0110 | 1:34.7260 | 1:35.0850 |
| 7th | 55 | Jarvis / Tincknell / Bomarito | Mazda RT24-P | Mazda Motorsports | 1:34.786 | 1:34.8760 | 1:34.7860 | 1:35.1320 |
| 8th | 52 | Keating / Jensen / Huffaker / Lapierre | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:35.979 | 1:36.9100 | 1:35.9790 | 1:39.1880 |
| 9th | 8 | Farano / Aubry / Buret / Vaxiviere | Oreca 07 Gibson | Tower Motorsport | 1:36.154 | 1:37.5600 | 1:36.1540 | 1:36.4480 |
| 10th | 81 | Hodes / Grist / Hanley / VeeKay | Oreca 07 Gibson | DragonSpeed USA | 1:36.403 | 1:37.3440 | 1:36.4030 | 1:37.1050 |
| 11th | 29 | van Eerd / van der Garde / van Uitert / Milesi | Oreca 07 Gibson | Racing Team Nederland | 1:36.446 | 1:38.7550 | 1:36.4460 | 1:38.8030 |
| 12th | 20 | Andersen / Habsburg / Fjordbach / Kubica | Oreca 07 Gibson | High Class Racing | 1:36.572 | 1:38.8820 | 1:36.6960 | 1:36.5720 |
| 13th | 47 | Lacorte / Fuoco / Belicchi / Sernagiotto | Dallara P217 Gibson | Cetilar Racing | 1:36.758 | 1:37.6380 | 1:36.7580 | 1:37.7550 |
| 14th | 11 | Thomas / Nunez / Merrill / Bell | Oreca 07 Gibson | WIN Autosport | 1:36.871 | 1:37.3450 | 1:37.5900 | 1:36.8710 |
| 15th | 18 | Merriman / Chatin / Tilley / Dalziel | Oreca 07 Gibson | Era Motorsport | 1:37.084 | 1:37.1090 | 1:37.0840 | 1:38.1040 |
| 16th | 82 | Lux / DeFrancesco / Mies / Schiller | Oreca 07 Gibson | DragonSpeed USA | 1:37.086 | 1:37.7690 | 1:37.0860 | 1:37.8920 |
| 17th | 51 | Ware / Yoluc / Dillon / Müller | Ligier JS P217 Gibson | RWR Eurasia | 1:38.796 | 1:38.9700 | 1:39.0480 | 1:38.7960 |
| 18th | 62 | Calado / Pier Guidi / Gounon / Rigon | Ferrari 488 GTE | Risi Competizione | 1:42.411 | 1:42.4110 | 1:42.7110 | 1:42.5840 |
| 19th | 91 | Cox / Murry / McCusker / Bleekemolen | Ligier JS P320 Nissan | Riley Motorsports | 1:42.416 | 1:43.7440 | 1:42.4160 | 1:43.0720 |
| 20th | 3 | Taylor / Catsburg / Garcia | Chevrolet Corvette C8.R | Corvette Racing | 1:42.445 | 1:42.4450 | 1:42.6690 | 1:43.0220 |
| 21st | 4 | Tandy / Sims / Milner | Chevrolet Corvette C8.R | Corvette Racing | 1:42.586 | 1:42.8560 | 1:42.5860 | 1:42.7260 |
| 22nd | 79 | MacNeil / Estre / Lietz / Bruni | Porsche 991 RSR 19 | WeatherTech Racing | 1:42.600 | 1:42.6420 | 1:42.6000 | 1:42.6030 |
| 23rd | 6 | Kranz / Hörr / Koch / McAleer | Duqueine M30-D08 Nissan | Mühlner Motorsports America | 1:42.663 | 1:43.3890 | 1:42.6630 | 1:44.2000 |
| 24th | 24 | Farfus / Wittmann / Edwards / Krohn | BMW M8 GTE | BMW Team RLL | 1:42.711 | 1:42.7110 | 1:43.0500 | 1:42.9200 |
| 25th | 25 | Glock / Eng / De Phillippi / Spengler | BMW M8 GTE | BMW Team RLL | 1:42.790 | 1:42.7900 | 1:43.2300 | 1:42.9100 |
| 26th | 54 | Bennett / Kurtz / Braun / McMurry | Ligier JS P320 Nissan | Core Motorsport | 1:42.855 | 1:44.0220 | 1:42.8550 | |
| 27th | 7 | Kvamme / Norman / Chaves / Estep | Duqueine M30-D08 Nissan | Forty7 Motorsports | 1:42.946 | 1:44.0680 | 1:42.9460 | 1:48.8090 |
| 28th | 33 | Willsey / Barbosa / Boyd / Clairay | Ligier JS P320 Nissan | Sean Creech Motorsport | 1:43.289 | 1:44.0520 | 1:43.2890 | 2:03.8970 |
| 29th | 74 | Robinson / Pigot / Andrews / Askew | Ligier JS P320 Nissan | Riley Motorsports | 1:43.342 | 1:43.5480 | 1:43.3420 | 1:48.8250 |
| 30th | 38 | Lindh / Cassels / Llarena / Ori | Ligier JS P320 Nissan | Performance Tech Motorsports | 1:43.472 | 1:44.2300 | 1:43.4720 | 1:43.7090 |
| 31st | 19 | Goikhberg / Perera / Costa / Zimmermann | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:45.583 | 1:46.4930 | 1:46.1090 | 1:45.5830 |
| 32nd | 111 | Ineichen / Bortolotti / Schothorst / Mapelli | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:45.593 | 1:46.1660 | 1:45.5930 | 1:45.7370 |
| 33rd | 14 | Telitz / Gavin / Hawksworth / Kirkwood | Lexus RC F GT3 | Vasser-Sullivan Racing | 1:45.596 | 1:45.9490 | 1:45.5960 | |
| 34th | 88 | Nielsen / Bamber / Ferriol / Legge | Porsche 991 GT3 R | Team Hardpoint EBM | 1:45.658 | 1:46.1390 | 1:45.6580 | 1:46.4110 |
| 35th | 63 | Jones / Curtis / Briscoe / Gomes | Ferrari 488 GT3 | Scuderia Corsa | 1:45.724 | 1:45.7240 | 1:46.2040 | |
| 36th | 12 | Veach / Megennis / Bell / Montecalvo | Lexus RC F GT3 | Vasser-Sullivan Racing | 1:45.752 | 1:46.0780 | 1:45.7520 | 1:46.4750 |
| 37th | 21 | Mann / Nielsen / Serra / Cressoni | Ferrari 488 GT3 | AF Corse | 1:45.774 | 1:45.7740 | 1:45.9460 | 1:45.9870 |
| 38th | 96 | Auberlen / Foley / Read / Herta | BMW M6 GT3 | Turner Motorsport | 1:45.784 | 1:45.7840 | 1:45.8520 | 1:47.7750 |
| 39th | 28 | Morad / Skeen / Johnson / Buhk | Mercedes-AMG GT3 Evo | Alegra Motorsports | 1:45.822 | 1:46.1820 | 1:45.8220 | 1:47.0610 |
| 40th | 9 | Robichon / Vanthoor / Kern / Campbell | Porsche 991 GT3 R | Pfaff Motorsports | 1:45.882 | 1:46.1920 | 1:45.8820 | 1:47.2730 |
| 41st | 75 | Habul / Marciello / Grenier / Stolz | Mercedes-AMG GT3 | SunEnergy1 Racing | 1:45.885 | 1:45.8850 | 1:45.9890 | |
| 42nd | 57 | Ward / Ellis / Dontje / Engel | Mercedes-AMG GT3 Evo | Winward Racing | 1:45.915 | 1:46.1130 | 1:45.9150 | 1:47.0460 |
| 43rd | 64 | Giovanis / Trinkler / Plumb / Plumb | Porsche 991 GT3 R | Team TGM | 1:45.933 | 1:46.7890 | 1:45.9330 | |
| 44th | 44 | Potter / Lally / Pumpelly / Farnbacher | Acura NSX GT3 | Magnus Racing with Archangel Motorsports | 1:45.946 | 1:46.7380 | 1:45.9460 | 1:46.5110 |
| 45th | 97 | Root / Eastwood / Keating / Westbrook | Aston Martin Vantage AMR GT3 | TF Sport | 1:45.974 | 1:46.3660 | 1:45.9740 | 1:46.0110 |
| 46th | 16 | Hindman / Long / Heylen / Bachler | Porsche 991 GT3 R | Wright Motorsports | 1:46.043 | 1:46.0850 | 1:46.0430 | 1:46.0940 |
| 47th | 23 | James / de Angelis / Turner / Gunn | Aston Martin Vantage AMR GT3 | Heart of Racing Team | 1:46.122 | 1:46.1220 | 1:46.1420 | 1:48.7590 |
| 48th | 1 | Sellers / Snow / Lewis / Caldarelli | Lamborghini Huracán GT3 Evo | Paul Miller Racing | 1:46.181 | 1:46.1810 | 1:46.2860 | 1:46.4250 |
| 49th | 42 | Metni / Davis / Hildebrand / Yount | Audi R8 LMS GT3 | NTE Sport | 1:47.240 | 1:47.9830 | 1:47.2400 | |