| 1st | 81 | Hedman / Lapierre / Hanley / Duval | Oreca 07 Gibson | DragonSpeed | 1 | 1:38.343 | 209.6980 | 1st | P |
| 2nd | 55 | Nunez / Bomarito / Pigot / Devlin | Mazda RT24-P | Mazda Motorsports | 1 | 1:38.363 | 209.5370 | 2nd | P |
| 3rd | 13 | Jani / Buemi / Heidfeld / Sarrazin | Oreca 07 Gibson | Rebellion Racing | 1 | 1:38.408 | 209.5370 | 3rd | P |
| 4th | 52 | Gutierrez / Guasch / Kimber-Smith / Enerson | Ligier JS P217 Gibson | PR1/Mathiasen Motorsports | 1 | 1:38.596 | 209.0540 | 4th | P |
| 5th | 5 | Barbosa / Albuquerque / Fittipaldi | Cadillac DPi-V.R | Mustang Sampling Racing | 1 | 1:38.693 | 208.8930 | 5th | P |
| 6th | 31 | Curran / Cameron / Conway / Morris | Cadillac DPi-V.R | Whelen Engineering Racing | 1 | 1:38.902 | 208.4100 | 6th | P |
| 7th | 90 | van der Zande / Goossens / Rast | Riley Mk.30 Gibson | VisitFlorida Racing | 1 | 1:38.922 | 208.4100 | 7th | P |
| 8th | 10 | Taylor / Taylor / Angelelli / Gordon | Cadillac DPi-V.R | Wayne Taylor Racing | 1 | 1:38.951 | 208.4100 | 8th | P |
| 9th | 85 | Goikhberg / Miller / Simpson / Beche | Oreca 07 Gibson | JDC-Miller Motorsports | 1 | 1:39.167 | 207.9270 | 9th | P |
| 10th | 70 | Long / Miller / Hinchcliffe / Devlin | Mazda RT24-P | Mazda Motorsports | 1 | 1:39.574 | 207.1230 | 10th | P |
| 11th | 22 | Brown / Van Overbeek / Senna | Nissan Onroak DPi | Tequila Patron ESM | 1 | 1:39.608 | 206.9620 | 11th | P |
| 12th | 2 | Sharp / Dalziel / Derani | Nissan Onroak DPi | Tequila Patron ESM | 1 | 1:39.654 | 206.8010 | 12th | P |
| 13th | 38 | O'Ward / Masson / Toppe / French | Oreca FLM 09 Chevrolet | Performance Tech Motorsports | 1 | 1:41.888 | 202.2950 | 1st | PC |
| 14th | 26 | Boulle / Merzon / Yount / Hindman / Mowlem / Ducote / Papadopoulos | Oreca FLM 09 Chevrolet | BAR1 Motorsports | 1 | 1:42.701 | 200.6850 | 2nd | PC |
| 15th | 8 | Keating / Falb / Rayhall / Wickens / Ruscitti | Oreca FLM 09 Chevrolet | Starworks Motorsport | 1 | 1:43.320 | 199.5590 | 3rd | PC |
| 16th | 20 | Yount / Yacaman / Ducote / Kvamme / Rice | Oreca FLM 09 Chevrolet | BAR1 Motorsports | 1 | 1:43.865 | 198.4320 | 4th | PC |
| 17th | 88 | Saavedra / Mayer / Dayson | Oreca FLM 09 Chevrolet | Starworks Motorsport | 1 | 1:44.089 | 198.1100 | 5th | PC |
| 18th | 67 | Briscoe / Westbrook / Dixon | Ford GT | Ford Chip Ganassi Racing | 1 | 1:44.380 | 197.4670 | 1st | GTLM |
| 19th | 69 | Priaulx / Kanaan / Tincknell | Ford GT | Ford Chip Ganassi Team UK | 1 | 1:44.645 | 196.9840 | 2nd | GTLM |
| 20th | 24 | Edwards / Tomczyk / Catsburg / Wittmer | BMW M6 GTLM | BMW Team RLL | 1 | 1:44.692 | 196.9840 | 3rd | GTLM |
| 21st | 62 | Vilander / Fisichella | Ferrari 488 GTE | Risi Competizione | 1 | 1:44.705 | 196.8230 | 4th | GTLM |
| 22nd | 4 | Gavin / Fässler / Milner | Chevrolet Corvette C7.R | Corvette Racing | 1 | 1:44.717 | 196.8230 | 5th | GTLM |
| 23rd | 66 | Hand / Müller / Bourdais | Ford GT | Ford Chip Ganassi Racing | 1 | 1:44.719 | 196.8230 | 6th | GTLM |
| 24th | 3 | Garcia / Magnussen / Rockenfeller | Chevrolet Corvette C7.R | Corvette Racing | 1 | 1:44.738 | 196.8230 | 7th | GTLM |
| 25th | 19 | Farfus / Auberlen / Sims / Spengler | BMW M6 GTLM | BMW Team RLL | 1 | 1:44.764 | 196.8230 | 8th | GTLM |
| 26th | 68 | Johnson / Mücke / Pla | Ford GT | Ford Chip Ganassi Team UK | 1 | 1:44.808 | 196.6620 | 9th | GTLM |
| 27th | 911 | Pilet / Werner / Makowiecki | Porsche 991 RSR | Porsche GT Team | 1 | 1:44.874 | 196.5010 | 10th | GTLM |
| 28th | 912 | Estre / Vanthoor / Lietz | Porsche 991 RSR | Porsche GT Team | 1 | 1:45.037 | 196.3400 | 11th | GTLM |
| 29th | 59 | Smith / Reimer / Renger / Proczyk / Müller | Porsche 991 GT3 R | Manthey Racing | 1 | 1:46.810 | 192.9600 | 1st | GTD |
| 30th | 33 | Keating / Bleekemolen / Farnbacher / Christensen | Mercedes AMG GT3 | Riley Motorsports - Team AMG | 1 | 1:46.902 | 192.7990 | 2nd | GTD |
| 31st | 57 | Aschenbach / Davis / Bell / Liddell | Audi R8 LMS GT3 | Stevenson Motorsports | 1 | 1:46.916 | 192.7990 | 3rd | GTD |
| 32nd | 29 | Schmidt / De Phillippi / Mies / Gounon | Audi R8 LMS GT3 | Montaplast by Land-Motorsport | 1 | 1:46.957 | 192.7990 | 4th | GTD |
| 33rd | 23 | Kaffer / Sweedler / Bell / Montecalvo | Audi R8 LMS GT3 | Alex Job Racing | 1 | 1:46.973 | 192.7990 | 5th | GTD |
| 34th | 28 | Pumpelly / de Quesada / de Quesada / Morad / Lazare / Christensen | Porsche 991 GT3 R | Alegra Motorsports | 1 | 1:47.142 | 192.4780 | 6th | GTD |
| 35th | 75 | Habul / Said / Vautier | Mercedes AMG GT3 | SunEnergy1 Racing | 1 | 1:47.322 | 192.1560 | 7th | GTD |
| 36th | 991 | Creel / Henzler / Heylen / Sanchez / Hedlund | Porsche 991 GT3 R | TRG | 1 | 1:47.389 | 191.9950 | 8th | GTD |
| 37th | 73 | McMurry / Lindsey / Bergmeister | Porsche 991 GT3 R | Park Place Motorsports | 1 | 1:47.395 | 191.9950 | 9th | GTD |
| 38th | 11 | Bortolotti / Engelhart / Ineichen / Pérez Companc | Lamborghini Huracán GT3 | GRT Grasser Racing Team | 1 | 1:47.411 | 191.9950 | 10th | GTD |
| 39th | 50 | Jeannette / Jäger / Van Gisbergen / Bleekemolen / MacNeil | Mercedes AMG GT3 | Riley Motorsports - WeatherTech Racing | 1 | 1:47.452 | 191.8340 | 11th | GTD |
| 40th | 46 | Busnelli / Babini | Lamborghini Huracán GT3 | Ebimotors | 1 | 1:47.466 | 191.8340 | 12th | GTD |
| 41st | 21 | Mapelli / Stolz / Willsey / Konrad | Lamborghini Huracán GT3 | Konrad Motorsport | 1 | 1:47.566 | 191.6730 | 13th | GTD |
| 42nd | 16 | Mul / Sandberg / Grala / Piquet, Jr. | Lamborghini Huracán GT3 | Change Racing | 1 | 1:47.591 | 191.6730 | 14th | GTD |
| 43rd | 51 | Mann / Mediani / Rigon | Ferrari 488 GT3 | Spirit of Race | 1 | 1:47.698 | 191.3510 | 15th | GTD |
| 44th | 63 | Nielsen / Balzan / Cressoni | Ferrari 488 GT3 | Scuderia Corsa | 1 | 1:47.705 | 191.3510 | 16th | GTD |
| 45th | 54 | Bennett / Braun / Jönsson / Long | Porsche 991 GT3 R | Core Autosport | 1 | 1:47.746 | 191.3510 | 17th | GTD |
| 46th | 98 | Dalla Lana / Lauda / Lamy / Sørensen | Aston Martin Vantage | Aston Martin Racing | 1 | 1:47.850 | 191.1900 | 18th | GTD |
| 47th | 48 | Sellers / Snow / Miller / Caldarelli | Lamborghini Huracán GT3 | Paul Miller Racing | 1 | 1:47.928 | 191.0290 | 19th | GTD |
| 48th | 93 | Lally / Legge / Wilkins / Rahal | Acura NSX GT3 | Michael Shank Racing | 1 | 1:47.929 | 191.0290 | 20th | GTD |
| 49th | 15 | Hawksworth / Alon / Cindric / Farnbacher | Lexus RCF GT3 | 3GT Racing | 1 | 1:47.975 | 190.8680 | 21st | GTD |
| 50th | 27 | DeGeorge / Giammaria / Sbirrazzuoli / Ruberti / Persiani | Lamborghini Huracán GT3 | Dream Racing Motorsport | 1 | 1:47.986 | 190.8680 | 22nd | GTD |
| 51st | 86 | Segal / Negri / Dyer / Hunter-Reay | Acura NSX GT3 | Michael Shank Racing | 1 | 1:48.131 | 190.7070 | 23rd | GTD |
| 52nd | 14 | Pruett / James / Menezes / Karam | Lexus RCF GT3 | 3GT Racing | 1 | 1:48.196 | 190.5460 | 24th | GTD |
| 53rd | 97 | Jens Klingmann | BMW M6 GT3 | Turner Motorsport | 1 | 1:48.467 | 190.0640 | 25th | GTD |
| 54th | 61 | Engelhart / Ineichen / Lenz / Pampanini / Pavlovic | Lamborghini Huracán GT3 | GRT Grasser Racing Team | 1 | 1:48.619 | 189.7420 | 26th | GTD |
| 55th | 18 | Massari / Brisebois / Claman / Anassis | Lamborghini Huracán GT3 | DAC Motorsports | 1 | 1:48.975 | 189.0980 | 27th | GTD |