| 1st | 31 | Nasr / Derani / *Conway / *Elliott | Cadillac DPi-V.R | Whelen Engineering Racing | 1:34.311 | 1:34.3110 | 1:36.8610 | 1:37.6520 | 1:35.8420 | 1:35.4520 |
| 2nd | 55 | Jarvis / Tincknell / *Bomarito | Mazda RT24-P | Mazda Motorsports | 1:34.442 | 1:34.4420 | 1:37.0590 | 1:36.8830 | 1:36.1780 | 1:35.9990 |
| 3rd | 5 | Vautier / Duval / *Bourdais | Cadillac DPi-V.R | Mustang Sampling/JDC-Miller MotorSports | 1:34.485 | 1:34.4850 | 1:36.8880 | 1:40.4020 | 1:36.5240 | 1:35.7100 |
| 4th | 01 | van der Zande / Magnussen / *Dixon / *Ericsson | Cadillac DPi-V.R | Cadillac Chip Ganassi Racing | 1:34.514 | 1:34.5140 | 1:36.5700 | 1:37.4490 | 1:35.9630 | 1:35.4120 |
| 5th | 10 | Taylor / Albuquerque / *Rossi / *Castroneves | Acura ARX-05 | Konica Minolta Acura | 1:34.706 | 1:34.7060 | 1:36.6900 | 1:42.1910 | 1:35.6970 | 1:35.7400 |
| 6th | 60 | Cameron / Pla / *Montoya / *Allmendinger | Acura ARX-05 | Meyer Shank Racing w/ Curb-Agajanian | 1:34.897 | 1:34.8970 | 1:36.9680 | 1:38.3630 | 1:36.2310 | 1:36.0680 |
| 7th | 48 | Johnson / Kobayashi / *Pagenaud / *Rockenfeller | Cadillac DPi-V.R | Ally Cadillac Racing | 1:35.312 | 1:35.6880 | 1:36.2980 | 1:36.3890 | 1:35.3120 | 1:35.5200 |
| 8th | 52 | Keating / Jensen / *Huffaker / *Lapierre | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:37.099 | 1:37.3680 | 1:38.6840 | 1:38.2340 | 1:37.7410 | 1:37.0990 |
| 9th | 47 | Lacorte / Fuoco / *Belicchi / *Sernagiotto | Dallara P217 Gibson | Cetilar Racing | 1:37.205 | 1:38.5730 | 1:38.8390 | 1:40.9220 | 1:39.0230 | 1:37.2050 |
| 10th | 81 | Hodes / Grist / *Hanley / *VeeKay | Oreca 07 Gibson | DragonSpeed USA | 1:37.265 | 1:39.8250 | 1:39.1780 | 1:47.3370 | 1:39.3580 | 1:37.2650 |
| 11th | 8 | Farano / Aubry / *Buret / *Vaxiviere | Oreca 07 Gibson | Tower Motorsport | 1:37.273 | 1:39.1170 | 1:38.7120 | 1:44.0690 | 1:38.3790 | 1:37.2730 |
| 12th | 29 | van Eerd / Van Der Garde / *van Uitert / *Milesi | Oreca 07 Gibson | Racing Team Nederland | 1:37.366 | 1:39.4240 | 1:37.7620 | 1:43.5530 | 1:37.9910 | 1:37.3660 |
| 13th | 11 | Thomas / Nunez / *Merrill / *Bell | Oreca 07 Gibson | WIN Autosport | 1:37.637 | 1:39.3320 | 1:38.7020 | 1:41.5130 | 1:39.2250 | 1:37.6370 |
| 14th | 82 | Lux / DeFrancesco / *Mies / *Schiller | Oreca 07 Gibson | DragonSpeed USA | 1:38.067 | 1:39.7860 | 1:39.2950 | | 1:40.9960 | 1:38.0670 |
| 15th | 20 | Andersen / Habsburg / *Fjordbach / *Kubica | Oreca 07 Gibson | High Class Racing | 1:38.296 | 1:38.5320 | 1:38.3920 | 1:42.0980 | 1:38.2960 | 1:38.3230 |
| 16th | 18 | Merriman / Chatin / *Tilley / *Dalziel | Oreca 07 Gibson | Era Motorsport | 1:38.520 | 1:40.5150 | 1:38.5200 | 1:45.2310 | 1:39.0090 | 1:38.5740 |
| 17th | 51 | Ware / Yoluc / *Dillon / *Jaminet | Ligier JS P217 Gibson | RWR Eurasia | 1:39.181 | 1:39.1810 | 1:41.0210 | 1:41.6230 | 1:41.3740 | 1:40.0880 |
| 18th | 6 | Kranz / Hörr / *Koch | Duqueine M30-D08 Nissan | Mühlner Motorsports America | 1:42.384 | 1:42.3840 | 1:45.0410 | 1:46.2360 | 1:43.5000 | 1:43.8240 |
| 19th | 24 | Farfus / Wittmann / *Edwards / *Krohn | BMW M8 GTE | BMW Team RLL | 1:42.980 | 1:42.9800 | 1:44.7800 | | 1:44.1070 | 1:43.8520 |
| 20th | 25 | Glock / Eng / *De Phillippi / *Spengler | BMW M8 GTE | BMW Team RLL | 1:43.343 | 1:43.3430 | 1:45.1070 | 1:46.2830 | 1:44.1830 | 1:43.9520 |
| 21st | 74 | Robinson / Pigot / Andrews / Askew | Ligier JS P320 Nissan | Riley Motorsports | 1:43.442 | | | | 1:43.7420 | 1:43.4420 |
| 22nd | 4 | Tandy / Sims / *Milner | Chevrolet Corvette C8.R | Corvette Racing | 1:43.467 | 1:43.6310 | 1:45.3770 | 1:45.7640 | 1:44.0620 | 1:43.4670 |
| 23rd | 54 | Bennett / Kurtz / *Braun / *McMurry | Ligier JS P320 Nissan | Core Motorsport | 1:43.572 | 1:44.9640 | 1:47.1780 | | 1:44.3030 | 1:43.5720 |
| 24th | 7 | Kvamme / Norman / *Chaves / *Finelli | Duqueine M30-D08 Nissan | Forty7 Motorsports | 1:43.623 | 1:43.6230 | 1:46.0250 | | 1:45.1540 | 1:44.5350 |
| 25th | 38 | Lindh / Cassels / *Llarena / *Ori | Ligier JS P320 Nissan | Performance Tech Motorsports | 1:43.676 | 1:43.6760 | 1:57.5900 | | 1:46.3770 | 1:44.9800 |
| 26th | 91 | Cox / Murry / *McCusker / *Bleekemolen | Ligier JS P320 Nissan | Riley Motorsports | 1:43.679 | | 1:59.4500 | | 1:44.7300 | 1:43.6790 |
| 27th | 62 | Calado / Pier Guidi / *Gounon / *Rigon | Ferrari 488 GTE | Risi Competizione | 1:43.680 | 1:44.2770 | 1:45.4270 | | 1:43.6800 | 1:44.2530 |
| 28th | 3 | Taylor / Catsburg / *Garcia | Chevrolet Corvette C8.R | Corvette Racing | 1:43.729 | 1:43.7290 | 1:45.4570 | | 1:44.0670 | 1:43.8690 |
| 29th | 33 | Willsey / Barbosa / *Boyd / *Clairay | Ligier JS P320 Nissan | Sean Creech Motorsport | 1:43.764 | 1:46.7210 | 1:47.2900 | 1:49.2390 | 1:43.8380 | 1:43.7640 |
| 30th | 79 | MacNeil / Estre / *Lietz / *Bruni | Porsche 991 RSR 19 | WeatherTech Racing | 1:44.110 | 1:45.3360 | 1:45.9460 | 1:54.3600 | 1:44.8130 | 1:44.1100 |
| 31st | 88 | Nielsen / Bamber / *Ferriol / *Legge | Porsche 991 GT3 R | Team Hardpoint EBM | 1:46.194 | | 1:47.8500 | 1:49.3620 | 1:46.1940 | 1:46.8990 |
| 32nd | 21 | Mann / Nielsen / *Serra / *Cressoni | Ferrari 488 GT3 | AF Corse | 1:46.495 | 1:47.0950 | 1:48.8990 | 1:50.5670 | 1:46.5050 | 1:46.4950 |
| 33rd | 63 | Jones / Curtis / *Briscoe / *Gomes | Ferrari 488 GT3 | Scuderia Corsa | 1:46.503 | 1:48.0190 | 1:48.0240 | | 1:46.7310 | 1:46.5030 |
| 34th | 111 | Ineichen / Bortolotti / *Schothorst / *Mapelli | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:46.506 | 1:47.5460 | 1:47.6530 | 1:50.8010 | 1:47.0800 | 1:46.5060 |
| 35th | 57 | Ward / Ellis / *Dontje / *Engel | Mercedes-AMG GT3 Evo | Winward Racing | 1:46.525 | 1:47.1980 | 1:47.5520 | 1:48.8980 | 1:46.5250 | 1:46.7820 |
| 36th | 75 | Habul / Marciello / *Grenier / *Stolz | Mercedes-AMG GT3 Evo | SunEnergy1 Racing | 1:46.575 | 1:47.8960 | 1:47.5140 | 1:47.1510 | 1:46.5750 | 1:46.6040 |
| 37th | 16 | Hardwick / Long / *Heylen / *Bachler | Porsche 991 GT3 R | Wright Motorsports | 1:46.581 | 1:46.8310 | 1:47.7350 | | 1:46.5810 | 1:47.2810 |
| 38th | 9 | Robichon / Vanthoor / *Kern / *Campbell | Porsche 991 GT3 R | Pfaff Motorsports | 1:46.614 | 1:47.3230 | 1:47.3640 | 1:49.8000 | 1:46.9760 | 1:46.6140 |
| 39th | 19 | Goikhberg / Perera / *Costa / *Zimmermann | Lamborghini Huracán GT3 Evo | GRT Grasser Racing Team | 1:46.786 | 1:48.5750 | 1:47.4920 | 1:48.5960 | 1:46.9730 | 1:46.7860 |
| 40th | 28 | Morad / de Quesada / *Johnson / *Buhk | Mercedes-AMG GT3 Evo | Alegra Motorsports | 1:46.833 | | 1:47.4040 | 1:48.4450 | 1:46.8330 | 1:46.8630 |
| 41st | 96 | Auberlen / Foley / *Read / *Herta | BMW M6 GT3 | Turner Motorsport | 1:47.015 | 1:47.6530 | 1:47.3090 | 1:48.4430 | 1:47.2490 | 1:47.0150 |
| 42nd | 64 | Giovanis / Trinkler / Plumb / Plumb | Porsche 991 GT3 R | Team TGM | 1:47.079 | 1:57.5130 | | 1:48.7010 | 1:47.8300 | 1:47.0790 |
| 43rd | 14 | Telitz / Gavin / *Hawksworth / *Kirkwood | Lexus RC F GT3 | Vasser-Sullivan Racing | 1:47.083 | 1:48.2080 | 1:47.9360 | | 1:47.3860 | 1:47.0830 |
| 44th | 44 | Potter / Lally / *Pumpelly / *Farnbacher | Acura NSX GT3 | Magnus Racing with Archangel Motorsports | 1:47.096 | 1:48.6140 | 1:47.8790 | 1:51.1780 | 1:48.0700 | 1:47.0960 |
| 45th | 1 | Sellers / Snow / *Lewis / *Caldarelli | Lamborghini Huracán GT3 Evo | Paul Miller Racing | 1:47.182 | 1:47.1820 | | 1:50.6640 | 1:47.2320 | 1:47.3840 |
| 46th | 23 | James / de Angelis / *Turner / *Gunn | Aston Martin Vantage AMR GT3 | Heart of Racing Team | 1:47.224 | 1:47.2240 | 1:49.0320 | 1:48.7630 | 1:48.5870 | 1:47.5990 |
| 47th | 97 | Root / Eastwood / *Keating / *Westbrook | Aston Martin Vantage AMR GT3 | TF Sport | 1:47.324 | 1:47.7100 | 1:48.3060 | 1:53.1700 | 1:48.5030 | 1:47.3240 |
| 48th | 12 | Veach / Megennis / *Bell / *Montecalvo | Lexus RC F GT3 | Vasser-Sullivan Racing | 1:47.380 | 1:48.0950 | 1:48.5240 | | 1:47.3800 | 1:47.3900 |
| 49th | 42 | Metni / Davis / *Hildebrand / *Yount | Audi R8 LMS GT3 | NTE Sport | 1:48.116 | 1:48.3360 | 1:58.5730 | 1:54.7300 | 1:48.2800 | 1:48.1160 |