| 1st | 60 | Negri / McMurry / Pew / Allmendinger | Ligier JS P2 Honda HPD | Michael Shank Racing w/ Curb/Agajanian | 1:39.194 | 1:39.1940 | 1:39.5760 | 1:39.6290 | 1:40.8770 |
| 2nd | 02 | Dixon / Kanaan / Larson / McMurray | Riley Mk XXVI Ford | Chip Ganassi Racing with Felix Sabates | 1:39.302 | 1:39.3020 | 1:39.7360 | 1:41.2100 | 1:41.2040 |
| 3rd | 01 | Pruett / Hand / Kimball / Karam | Riley Mk XXVI Ford | Chip Ganassi Racing with Felix Sabates | 1:39.309 | 1:39.3090 | 1:40.0640 | 1:40.7710 | 1:41.5670 |
| 4th | 5 | Barbosa / Fittipaldi / Bourdais | Chevrolet Corvette DP | Action Express Racing | 1:39.568 | 1:39.5680 | 1:39.9860 | 1:40.2710 | 1:41.3550 |
| 5th | 0 | Meyrick / Rojas / Legge / Chaves | DeltaWing DWC13 Elan | Claro / TracFone DeltaWing Racing | 1:39.625 | 1:39.6250 | 1:41.0210 | 1:42.2780 | no time |
| 6th | 57 | Pla / Krohn / Jönsson / Brundle | Ligier JS P2 Judd | Krohn Racing | 1:39.683 | 1:39.6830 | 1:40.5300 | 1:40.5480 | 1:41.7990 |
| 7th | 10 | Taylor / Taylor / Angelelli | Chevrolet Corvette DP | No. 10 Konica Minolta Corvette DP for Wayne Taylor Racing | 1:39.684 | 1:39.8880 | 1:39.6840 | 1:40.7920 | 1:44.7490 |
| 8th | 31 | Papis / Cameron / Curran / Keen | Chevrolet Corvette DP | Action Express Racing | 1:39.879 | 1:40.3220 | 1:39.8790 | 1:41.1840 | no time |
| 9th | 7 | Barrichello / Hartley / Hunter-Reay / Graves / Mayer | Riley Mk XXVI BMW | Starworks Motorsport | 1:40.260 | 1:40.2600 | 1:41.1410 | 1:41.1780 | 1:41.4010 |
| 10th | 90 | Westbrook / Valiante / Rockenfeller / Cosmo | Chevrolet Corvette DP | VisitFlorida.com Racing | 1:40.280 | 1:40.3300 | 1:40.2800 | 1:40.7610 | 1:41.9340 |
| 11th | 1 | Dalziel / Sharp / Heinemeier Hansson | HPD ARX-04b Honda | Tequila Patron ESM | 1:41.003 | no time | 1:41.0030 | 1:42.1910 | 1:41.9010 |
| 12th | 66 | Lewis / Gewirtz / Kvamme / Cheng | Riley Mk XXVI BMW | RG Racing | 1:42.070 | 1:42.0700 | 1:43.4020 | 1:43.2690 | 1:44.5090 |
| 13th | 16 | Mowlem / Papadopoulos / Drissi / Alder / Plowman | Oreca FLM 09 | BAR1 Motorsports | 1:42.318 | 1:42.3180 | 1:43.4780 | 1:43.3140 | 1:45.8180 |
| 14th | 2 | Fogarty / Brown / Van Overbeek | HPD ARX-04b Honda | Tequila Patron ESM | 1:42.374 | 1:42.3900 | 1:42.4220 | 1:42.7440 | 1:42.3740 |
| 15th | 54 | Braun / Bennett / Wilkins / Gue | Oreca FLM 09 | Core Autosport | 1:42.498 | 1:42.4980 | 1:43.5180 | 1:42.8770 | 1:45.7830 |
| 16th | 52 | Kimber-Smith / Guasch / Novich / Palmer | Oreca FLM 09 | PR1/Mathiasen Motorsports | 1:42.829 | 1:42.8290 | 1:44.2020 | 1:43.4760 | 1:45.1590 |
| 17th | 50 | Pace / Defoor / Hinton / Schroeder / Smith | Riley Mk XXVI BMW | Fifty Plus Racing Endures for a Cure, Inc. / Highway to Help Race Team | 1:43.025 | 1:44.4230 | 1:43.7960 | 1:44.2990 | 1:43.0250 |
| 18th | 11 | Cumming / Hawksworth / Junqueira / Menezes | Oreca FLM 09 | RSR Racing | 1:43.248 | 1:43.9920 | 1:43.2480 | 1:43.9980 | 1:44.3590 |
| 19th | 8 | van der Zande / Schultis / Popow / Hedlund / Albuquerque | Oreca FLM 09 | Starworks Motorsport | 1:43.322 | 1:43.3220 | 1:44.3330 | 1:44.1220 | 1:45.1690 |
| 20th | 61 | Plowman / Drumwright / Breukers / Blackstock / Ruscitti | Oreca FLM 09 | BAR1 Motorsports | 1:43.442 | 1:43.4420 | 1:44.3040 | 1:44.2420 | 1:45.5640 |
| 21st | 4 | Gavin / Milner / Pagenaud | Chevrolet Corvette C7.R | Corvette Racing | 1:43.488 | 1:43.4880 | 1:44.2840 | 1:44.6430 | 1:44.9110 |
| 22nd | 85 | Simpson / Goikhberg / Miller / Vautier / Mitchell | Oreca FLM 09 | JDC/Miller Motorsports | 1:43.514 | 1:43.5140 | 1:43.9000 | 1:44.1750 | 1:45.6080 |
| 23rd | 07 | Long / Miller / Devlin / Tremblay | Mazda Prototype | SpeedSource | 1:43.647 | 1:47.3200 | 1:43.6470 | 1:44.6770 | 1:44.9990 |
| 24th | 70 | Bomarito / Nunez / Hinchcliffe / Tremblay | Mazda Prototype | SpeedSource | 1:43.782 | 1:43.7820 | 1:44.5620 | 1:44.5920 | no time |
| 25th | 51 | Bruni / Perrodo / Collard / Vilander | Ferrari 458 Italia | AF Corse | 1:43.830 | 1:43.8300 | 1:44.2700 | 1:44.2730 | 1:45.2170 |
| 26th | 3 | Magnussen / Garcia / Briscoe | Chevrolet Corvette C7.R | Corvette Racing | 1:43.942 | 1:43.9760 | 1:43.9420 | 1:44.7470 | 1:44.6820 |
| 27th | 98 | Lamy / Lauda / Turner / Dalla Lana / Mücke | Aston Martin V8 Vantage GTE | Aston Martin Racing | 1:43.960 | 1:43.9600 | 1:44.6200 | 1:44.6750 | 1:45.5760 |
| 28th | 24 | Edwards / Luhr / Klingmann / Rahal | BMW Z4 GTE | BMW Team RLL | 1:43.966 | 1:43.9660 | 1:44.5590 | 1:44.7720 | 1:45.4660 |
| 29th | 62 | Kaffer / Rigon / Fisichella / Beretta | Ferrari 458 Italia | Risi Competizione | 1:43.986 | 1:43.9860 | 1:44.2110 | 1:44.7390 | 1:44.5720 |
| 30th | 25 | Farfus / Auberlen / Werner / Spengler | BMW Z4 GTE | BMW Team RLL | 1:44.024 | 1:44.0240 | 1:44.3340 | 1:44.8090 | 1:45.5270 |
| 31st | 911 | Tandy / Pilet / Lieb / Christensen | Porsche 991 RSR | Porsche North America | 1:44.082 | 1:44.0820 | 1:44.3660 | 1:44.8090 | 1:44.9190 |
| 32nd | 912 | Makowiecki / Bergmeister / Bamber / Christensen | Porsche 991 RSR | Porsche North America | 1:44.416 | 1:44.7590 | 1:44.4160 | 1:45.2100 | 1:44.7080 |
| 33rd | 17 | Sellers / Henzler / Long | Porsche 991 RSR | Team Falken Tire | 1:44.465 | 1:44.4650 | 1:44.5990 | 1:45.4830 | 1:44.9790 |
| 34th | 38 | French / Mee / Vance / Johnston | Oreca FLM 09 | Performance Tech Motorsports | 1:44.473 | 1:44.4730 | 1:44.6740 | 1:45.0890 | 1:44.7890 |
| 35th | 49 | Griffin / Lathouras / Rugolo / Aguas | Ferrari 458 Italia | AF Corse | 1:46.994 | 1:48.6140 | 1:46.9940 | 1:48.6900 | 1:48.8930 |
| 36th | 93 | Keating / Farnbacher / Carter / Wittmer / Lawrence | Dodge Viper SRT | Riley Motorsports | 1:47.018 | 1:49.5120 | 1:47.0180 | 1:47.9500 | 1:48.1930 |
| 37th | 33 | Bleekemolen / Keating / Carter / Goossens / Bleekemolen | Dodge Viper SRT | Riley Motorsports | 1:47.216 | 1:47.4240 | 1:47.2160 | 1:47.5490 | 1:48.8560 |
| 38th | 007 | Davison / Nielsen / Nygaard / Davis | Aston Martin V12 Vantage | TRG-AMR | 1:47.272 | 1:47.2720 | 1:48.4820 | 1:48.6550 | 1:49.4110 |
| 39th | 64 | Bertolini / Serra / Longo / Gomes | Ferrari 458 Italia | Scuderia Corsa | 1:47.371 | 1:47.8050 | 1:47.3710 | 1:48.8410 | 1:48.6310 |
| 40th | 28 | Zöchling / Bachler / Engelhart / Willsey / Ineichen | Porsche 991 GT America | Konrad Motorsport | 1:47.451 | 1:47.4510 | 1:48.9500 | 1:48.7150 | 1:49.4090 |
| 41st | 63 | Bell / Sweedler / Lazzaro / Segal / Westphal | Ferrari 458 Italia | Scuderia Corsa | 1:47.464 | 1:48.1170 | 1:47.4640 | 1:48.3670 | 1:48.2540 |
| 42nd | 48 | Haase / Miller / von Moltke / Rast | Audi R8 LMS | Paul Miller Racing | 1:47.508 | 1:48.2020 | 1:47.5080 | 1:48.5160 | no time |
| 43rd | 58 | Heylen / Eng / Snow / Dempsey | Porsche 991 GT America | Wright Motorsports | 1:47.535 | 1:47.5350 | 1:47.6910 | 1:47.9280 | 1:48.3830 |
| 44th | 73 | Pumpelly / Lindsey / Norman / Canache / Estre | Porsche 991 GT America | Park Place Motorsports | 1:47.792 | 1:47.8600 | 1:47.9030 | 1:47.7920 | 1:48.2550 |
| 45th | 45 | Winkelhock / Thorne / Hoshino / Fujii | Audi R8 LMS | Flying Lizard Motorsports | 1:47.813 | 1:47.8130 | 1:48.0240 | 1:49.0440 | no time |
| 46th | 44 | Lally / Potter / Seefried / Ragginger | Porsche 991 GT America | Magnus Racing | 1:47.891 | 1:48.0990 | 1:47.8910 | 1:48.0840 | 1:49.4520 |
| 47th | 81 | Faulkner / Giermaziak / Skeen / Butcher / Avenatti | Porsche 991 GT America | GB Autosport | 1:47.938 | no time | 1:47.9380 | 1:48.8520 | 1:47.9700 |
| 48th | 22 | Keen / MacNeil / Davis / Van Gisbergen | Porsche 991 GT America | Alex Job Racing | 1:48.049 | 1:48.2000 | 1:48.0490 | 1:48.5110 | 1:49.0330 |
| 49th | 23 | James / Riberas / Farnbacher | Porsche 991 GT America | Team Seattle/Alex Job Racing | 1:48.373 | 1:48.6830 | 1:48.3730 | 1:49.0450 | 1:49.0790 |
| 50th | 97 | Palttala / Marsal / Priaulx / Said | BMW Z4 | Turner Motorsport | 1:48.945 | 1:50.2130 | 1:48.9450 | 1:49.7880 | 1:50.9050 |
| 51st | 19 | De Phillippi / Michaelian / Lira / Flores / Mayr-Melnhof | Porsche 991 GT America | Muehlner Motorsports America | 1:49.035 | 1:49.0350 | 1:50.0130 | 1:50.3250 | no time |
| 52nd | 18 | Basseng / Beretta / O'Young / De Phillippi / Mayr-Melnhof | Porsche 991 GT America | Muehlner Motorsports America | 1:49.291 | 1:49.2910 | 1:49.7000 | 1:50.1120 | 1:49.6930 |
| 53rd | 009 | DeBoer / Riddle / Salazar / Wilson / Davis | Aston Martin V12 Vantage | TRG-AMR | 1:49.399 | no time | 1:49.8850 | 1:49.3990 | 1:50.8980 |