| 1st | 5 | Vautier / Westbrook / *Duval / *Keating | Cadillac DPi-V.R | JDC Miller MotorSports | 1:34.034 | 1:34.0340 | 1:34.9340 | 1:35.0400 | 1:35.4330 | 1:34.7170 |
| 2nd | 02 | Bamber / Lynn / *Ericsson / *Magnussen | Cadillac DPi-V.R | Cadillac Racing | 1:34.131 | 1:34.2590 | 1:34.6280 | 1:34.1310 | 1:47.9520 | 1:47.6070 |
| 3rd | 10 | Taylor / Albuquerque / *Rossi / *Stevens | Acura ARX-05 | Konica Minolta Acura ARX-05 | 1:34.156 | 1:34.1560 | 1:34.8900 | 1:35.2060 | 1:36.4800 | 1:36.0620 |
| 4th | 2 | Pilet / Imperatori / *Vanthoor / *Olsen | Porsche 991 GT3 R | KCMG | 1:34.351 | 1:46.1360 | 1:46.3990 | 1:46.8850 | 1:34.3510 | 1:34.7990 |
| 5th | 01 | van der Zande / Bourdais / *Dixon / *Palou | Cadillac DPi-V.R | Cadillac Racing | 1:34.431 | 1:38.5930 | 1:34.7340 | 1:34.4310 | 1:49.1910 | 1:47.6020 |
| 6th | 31 | Derani / Nunez / *Conway | Cadillac DPi-V.R | Whelen Engineering Racing | 1:34.440 | 1:34.4400 | 1:34.9490 | 1:35.4690 | 1:46.9200 | 1:45.8860 |
| 7th | 3 | Garcia / Taylor / *Catsburg | Chevrolet Corvette C8.R GTD | Corvette Racing | 1:34.592 | 1:47.8940 | 1:47.2900 | 1:48.0610 | 1:34.6870 | 1:34.5920 |
| 8th | 4 | Milner / Sørensen / *Tandy | Chevrolet Corvette C8.R GTD | Corvette Racing | 1:34.611 | 1:47.6610 | 1:47.4300 | 1:48.2420 | 1:34.7120 | 1:34.6110 |
| 9th | 6 | Kranz / Ori / *Castro / *Miller | Duqueine D08 Nissan | Muehlner Motorsports America | 1:34.746 | 1:43.7990 | 1:43.5380 | 1:43.5540 | 1:34.7460 | 1:35.3280 |
| 10th | 48 | Kobayashi / Johnson / *Rockenfeller / *Lopez | Cadillac DPi-V.R | Ally Cadillac | 1:34.831 | 1:34.9410 | 1:34.8310 | 1:36.6430 | 1:47.0920 | 1:46.2870 |
| 11th | 7 | Kvamme / Doquin / *McCusker / *Estep | Duqueine D08 Nissan | Forty7 Motorsports | 1:34.897 | 1:47.2200 | 1:44.9050 | 1:44.8680 | 1:35.7950 | 1:34.8970 |
| 12th | 60 | Jarvis / Blomqvist / *Castroneves / *Pagenaud | Acura ARX-05 | Meyer Shank Racing W/Curb-Agajanian | 1:35.158 | 1:35.4070 | 1:35.1580 | 1:35.7920 | 1:47.5400 | 1:46.5040 |
| 13th | 8 | Farano / Deletraz / *Pinto de Andrade / *Habsburg | Oreca 07 Gibson | Tower Motorsport | 1:35.172 | 1:40.0910 | 1:36.1440 | 1:36.9900 | 1:35.1820 | 1:35.1720 |
| 14th | 68 | Heriau / Rast / *Rasmussen / *Jones | Oreca 07 Gibson | G-Drive Racing By APR | 1:35.789 | 1:38.8760 | 1:35.7890 | 1:36.2680 | 1:49.0810 | 1:46.7330 |
| 15th | 9 | Jaminet / Nasr / *Campbell | Porsche 991 GT3 R | Pfaff Motorsports | 1:35.874 | 1:46.1990 | 1:46.5150 | 1:46.3200 | 1:35.9330 | 1:35.8740 |
| 16th | 52 | Keating / Jensen / *Huffaker / *Lapierre | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:36.079 | 1:37.2960 | 1:36.0790 | 1:37.3010 | 1:47.0890 | 1:46.3250 |
| 17th | 20 | Andersen / Scherer / *Fjordbach / *Müller | Oreca 07 Gibson | High Class Racing | 1:36.141 | 1:38.1750 | 1:36.1410 | 1:39.9260 | 1:44.4640 | 1:42.5820 |
| 18th | 11 | Thomas / Bomarito / *Pierson / *Tincknell | Oreca 07 Gibson | PR1 Mathiasen Motorsports | 1:36.262 | 1:37.9330 | 1:36.5830 | 1:37.9700 | 1:36.2620 | 1:37.2320 |
| 19th | 12 | Montecalvo / Bell / *Telitz / *Heistand | Lexus RC F GT3 | VasserSullivan | 1:36.309 | 1:47.6250 | 1:46.8160 | 1:47.8020 | 1:36.3090 | 1:36.3540 |
| 20th | 13 | Fidani / Wittmer / *Kern / *Bell | Duqueine D08 Nissan | AWA | 1:36.390 | 1:46.5450 | 1:44.4490 | 1:47.8180 | 1:37.5710 | 1:36.3900 |
| 21st | 18 | Merriman / Chatin / *Tilley / *Dalziel | Oreca 07 Gibson | Era Motorsport | 1:36.390 | 1:40.6680 | 1:36.3900 | 1:40.5300 | 1:37.1640 | 1:36.7100 |
| 22nd | 14 | Barnicoat / Kirkwood / *Hawksworth | Lexus RC F GT3 | VasserSullivan | 1:36.482 | 1:46.8330 | 1:46.7270 | 1:46.9500 | 1:37.7170 | 1:36.4820 |
| 23rd | 15 | Müller / Cindric / *Assenheimer | Mercedes-AMG GT3 | Proton USA | 1:36.654 | no time | 1:46.8830 | 1:46.1890 | 1:37.7460 | 1:36.6540 |
| 24th | 16 | Hardwick / Heylen / *Robichon / *Lietz | Porsche 991 GT3 R | Wright Motorsports | 1:36.663 | 1:49.7470 | 1:46.2420 | 1:47.8900 | 1:37.6240 | 1:36.6630 |
| 25th | 29 | van Eerd / Murry / *Van Der Garde / *VeeKay | Oreca 07 Gibson | Racing Team Nederland | 1:36.699 | 1:40.0440 | 1:36.6990 | 1:39.7790 | 1:46.5160 | 1:45.7570 |
| 26th | 69 | Falb / Allen / *Ghiotto / *van der Helm | Oreca 07 Gibson | G-Drive Racing By APR | 1:36.717 | 1:38.9290 | 1:36.7170 | 1:39.4150 | 1:47.2380 | 1:46.7890 |
| 27th | 81 | Lux / DeFrancesco / *O'Ward / *Herta | Oreca 07 Gibson | DragonSpeed USA | 1:36.771 | 1:38.9870 | 1:36.7710 | 1:39.5070 | 1:47.8980 | 1:47.0720 |
| 28th | 19 | Megrue / Segal / *Sweedler / *Altoè | Lamborghini Huracán GT3 | TR3 Racing | 1:36.787 | 1:58.8090 | 1:47.1390 | 1:48.4790 | 1:38.1850 | 1:36.7870 |
| 29th | 22 | McGuire / Owen / *Smith / *Hanson | Oreca 07 Gibson | United Autosports | 1:36.855 | 1:46.1120 | 1:36.8550 | 1:38.8020 | 1:43.6430 | 1:42.9260 |
| 30th | 26 | Shields / de Wilde / *Crews / *Siegel | Duqueine D08 Nissan | Muehlner Motorsports America | 1:42.182 | 1:42.1820 | 1:44.0440 | 1:43.2150 | 1:43.6710 | 1:43.3650 |
| 31st | 36 | Andretti / Burdon / *Lindh / *Chaves | Ligier JS P320 Nissan | Andretti Autosport | 1:42.403 | 1:43.7830 | 1:43.9730 | 1:42.4030 | 1:47.2520 | 1:46.1020 |
| 32nd | 38 | Abe / Pino / *Grist / *Goldburg | Ligier JS P320 Nissan | Performance Tech Motorsports | 1:42.468 | 1:42.4680 | 1:44.1350 | | 1:46.8820 | 1:46.2010 |
| 33rd | 21 | Pérez Companc / Vilander / *Mann / *Nielsen | Ferrari 488 GT3 | AF Corse | 1:42.639 | 1:48.1250 | 1:47.4410 | 1:47.8160 | 1:43.0060 | 1:42.6390 |
| 34th | 23 | Gunn / Riberas / *Martin | Aston Martin Vantage GT3 | Heart of Racing Team | 1:43.108 | 1:46.6830 | 1:46.5170 | 1:47.1740 | 1:43.4130 | 1:43.1080 |
| 35th | 24 | Yelloly / van der Linde / *Eng / *Wittmann | BMW M4 GT3 | BMW M Team RLL | 1:43.229 | 1:47.1980 | 1:47.9030 | 1:47.5980 | 1:44.6540 | 1:43.2290 |
| 36th | 25 | De Phillippi / Edwards / *Farfus / *Krohn | BMW M4 GT3 | BMW M Team RLL | 1:43.246 | 1:48.0820 | 1:48.2100 | 1:47.2670 | 1:43.2460 | 1:43.2850 |
| 37th | 27 | de Angelis / *Gamble / *James / *Turner | Aston Martin Vantage GT3 | Heart of Racing Team | 1:43.372 | no time | 1:46.7800 | 1:47.9180 | 1:44.0640 | 1:43.3720 |
| 38th | 33 | Barbosa / Willsey / *Jakobsen / *Priaulx | Ligier JS P320 Nissan | Sean Creech Motorsport | 1:43.600 | 1:46.0530 | 1:43.6000 | 1:44.7910 | 1:47.5100 | 1:45.9980 |
| 39th | 28 | de Quesada / Lundqvist / *Morad / *Götz | Mercedes-AMG GT3 | Alegra Motorsports | 1:43.964 | 1:47.0750 | 1:47.0250 | 1:48.1810 | 1:43.9640 | 1:43.9830 |
| 40th | 54 | Bennett / Kurtz / Braun / Jönsson | Ligier JS P320 Nissan | CORE Autosport | 1:44.783 | 1:44.7830 | | 1:45.4830 | 1:46.6120 | 1:46.4100 |
| 41st | 63 | Caldarelli / Bortolotti / *Ineichen / *Mapelli | Lamborghini Huracán GT3 | TR3 Racing | 1:45.647 | 1:46.5770 | 1:46.4660 | 1:45.6470 | 1:47.6810 | 1:46.6430 |
| 42nd | 32 | Skeen / Cosmo / *McAleer / *Andrews | Mercedes-AMG GT3 | Gilbert Korthoff Motorsports | 1:45.965 | 1:54.7960 | 1:46.7120 | 1:47.0620 | 1:46.9990 | 1:45.9650 |
| 43rd | 34 | Washington / Bachler / *Sofronas / *Bleekemolen | Porsche 991 GT3 R | GMG Racing | 1:46.012 | no time | 1:46.5950 | 1:57.3290 | 1:46.4830 | 1:46.0120 |
| 44th | 97 | Engel / Gounon / *MacNeil / *Juncadella | Mercedes-AMG GT3 | WeatherTech Racing | 1:46.222 | 1:47.0170 | 1:46.6250 | 1:46.2220 | 1:49.0150 | 1:47.3770 |
| 45th | 39 | Megennis / Mitchell / *Lewis / *Westphal | Lamborghini Huracán GT3 Evo | CarBahn with Peregrine Racing | 1:46.257 | 1:54.0420 | 1:46.6820 | 1:46.6610 | 1:46.7850 | 1:46.2570 |
| 46th | 42 | Yount / Hites / *Conwright / *Palttala | Lamborghini Huracán GT3 | NTE Sport | 1:46.258 | 1:51.7900 | 1:47.6610 | 1:46.8510 | 1:47.9930 | 1:46.2580 |
| 47th | 44 | Potter / Lally / *Pumpelly / *Adam | Aston Martin Vantage GT3 | Magnus Racing | 1:46.269 | 1:48.0140 | 1:46.8360 | 1:46.7150 | 1:46.8930 | 1:46.2690 |
| 48th | 47 | Lacorte / Rovera / *Sernagiotto / *Fuoco | Ferrari 488 GT3 | Cetilar Racing | 1:46.274 | 1:47.2710 | 1:47.5320 | 1:49.5790 | 1:47.0980 | 1:46.2740 |
| 49th | 59 | Miller / Holton / *Bergstein / *Gallagher | McLaren 720S GT3 | Crucial Motorsports | 1:46.305 | 1:46.8000 | 1:46.3050 | 1:47.2270 | 1:46.8510 | 1:46.4540 |
| 50th | 75 | Habul / Marciello / *Schiller / *Stolz | Mercedes-AMG GT3 | Sun Energy 1 | 1:46.313 | 1:46.3130 | 1:46.5710 | | 1:47.4620 | 1:47.0100 |
| 51st | 64 | Giovanis / Trinkler / *Plumb / *Plumb | Porsche 991 GT3 R | TeamTGM | 1:46.333 | no time | 1:46.3330 | 1:50.1590 | 1:47.0060 | 1:46.6500 |
| 52nd | 70 | Iribe / Millroy / *Schandorff / *Pepper | McLaren 720S GT3 | Inception Racing | 1:46.403 | 1:47.9300 | 1:46.7880 | 1:46.4030 | 1:47.7720 | 1:46.8230 |
| 53rd | 79 | Andlauer / Picariello / *MacNeil / *Cairoli | Porsche 991 GT3 R | WeatherTech Racing | 1:46.436 | 1:47.2260 | 1:46.4360 | 1:47.0600 | 1:47.0650 | 1:47.5700 |
| 54th | 57 | Ward / Auer / *Ellis / *Grenier | Mercedes-AMG GT3 | Winward Racing | 1:46.444 | 1:46.4640 | 1:46.5190 | 1:48.1610 | 1:47.0260 | 1:46.4440 |
| 55th | 62 | Serra / Rigon / *Pier Guidi / *Calado | Ferrari 488 GT3 | Risi Competizione | 1:46.643 | 1:46.8050 | 1:47.5540 | | 1:47.0440 | 1:46.6430 |
| 56th | 66 | Simpson / Bechtolsheimer / *Miller / *Farnbacher | Acura NSX GT3 | Gradient Racing | 1:46.724 | no time | 1:47.5340 | | 1:47.9030 | 1:46.7240 |
| 57th | 71 | Goikhberg / *Perera / *Llarena / *Paul | Lamborghini Huracán GT3 | T3 Motorsport North America | 1:46.784 | 1:48.5860 | 1:47.3300 | 1:46.7840 | 1:48.8030 | 1:46.8380 |
| 58th | 74 | Robinson / *Fraga / *van Berlo / *Cooper | Ligier JS P320 Nissan | Riley Motorsports | 1:46.946 | no time | | | 1:47.6390 | 1:46.9460 |
| 59th | 98 | Dalla Lana / Pittard / *Eastwood / *Thiim | Aston Martin Vantage GT3 | Northwest AMR | 1:47.007 | 1:54.8700 | 1:47.0070 | 1:47.5850 | 1:47.4690 | 1:48.6030 |
| 60th | 96 | Foley / Auberlen / *Dinan / *Klingmann | BMW M4 GT3 | Turner Motorsport | 1:47.368 | 1:55.1470 | 1:47.7800 | 1:47.5080 | 1:47.3680 | 1:47.4230 |
| 61st | 99 | Boulle / Wilson / *Ferriol / *Legge | Porsche 991 GT3 R | Team Hardpoint | 1:47.556 | no time | 1:47.7420 | 1:47.8450 | 1:49.1320 | 1:47.5560 |