| 1st | 10 | Taylor / Taylor / Angelelli | Chevrolet Corvette DP | No.10 Konica Minolta Corvette DP for Wayne Taylor | 1 | 1:39.181 | 207.9560 | 1st | P |
| 2nd | 5 | Barbosa / Fittipaldi / Bourdais | Chevrolet Corvette DP | Action Express Racing LLC | 1 | 1:39.310 | 207.6860 | 2nd | P |
| 3rd | 60 | McMurry / Pew | Ligier JS P2 Honda | Michael Shank Racing w/Curb/Agajanian | 1 | 1:39.342 | 207.6200 | 3rd | P |
| 4th | 01 | Pruett / Hand / Kimball / Karam | Riley Mk XXVI Ford | Chip Ganassi Racing with Felix Sabates | 1 | 1:39.397 | 207.5040 | 4th | P |
| 5th | 02 | Dixon / Kanaan / Larson / McMurray | Riley Mk XXVI Ford | Chip Ganassi Racing with Felix Sabates | 1 | 1:39.406 | 207.4860 | 5th | P |
| 6th | 0 | Rojas / Legge / Chaves | DeltaWing DWC13 Elan | DeltaWing Racing | 1 | 1:39.484 | 207.3240 | 6th | P |
| 7th | 90 | Westbrook / Valiante / Rockenfeller | Chevrolet Corvette DP | VisitFlorida.com Racing | 1 | 1:39.531 | 207.2260 | 7th | P |
| 8th | 31 | Curran / Cameron / Papis / Keen | Chevrolet Corvette DP | Action Express Racing LLC | 1 | 1:39.907 | 206.4450 | 8th | P |
| 9th | 7 | Hartley / Barrichello / Hunter-Reay / Graves / Mayer | Riley Mk XXVI BMW | Starworks Motorsport | 1 | 1:40.201 | 205.8400 | 9th | P |
| 10th | 57 | Krohn / Pla / Jönsson / Brundle | Ligier JS P2 Judd | Krohn Racing | 1 | 1:40.390 | 205.4520 | 10th | P |
| 11th | 2 | Brown / Fogarty / Van Overbeek | HPD ARX-04b Honda | Tequila Patron ESM | 1 | 1:40.621 | 204.9810 | 11th | P |
| 12th | 66 | Gewirtz / Lewis / Kvamme | Riley Mk XXVI BMW | RG Racing | 1 | 1:41.364 | 203.4770 | 12th | P |
| 13th | 54 | Bennett / Braun / Wilkins / Gue | Oreca FLM 09 | Core Autosport | 1 | 1:41.769 | 202.6680 | 1st | PC |
| 14th | 11 | Cumming / Hawksworth / Junqueira / Menezes | Oreca FLM 09 | RSR Racing | 1 | 1:41.865 | 202.4780 | 2nd | PC |
| 15th | 07 | Miller / Long / Devlin / Tremblay | Mazda Prototype | SpeedSource | 1 | 1:42.124 | 201.9630 | 13th | P |
| 16th | 8 | van der Zande / Schultis / Popow / Hedlund / Bernoldi | Oreca FLM 09 | Starworks Motorsport | 1 | 1:42.146 | 201.9200 | 3rd | PC |
| 17th | 70 | Bomarito / Nunez / Tremblay | Mazda Prototype | SpeedSource | 1 | 1:42.853 | 200.5320 | 14th | P |
| 18th | 16 | Mowlem / Papadopoulos / Drissi / Alder | Oreca FLM 09 | BAR1 Motorsports | 1 | 1:43.143 | 199.9690 | 4th | PC |
| 19th | 50 | Pace / Defoor / Hinton / Schroeder | Riley Mk XXVI BMW | Fifty Plus Racing Endures for a Cure/Highway | 1 | 1:43.301 | 199.6630 | 15th | P |
| 20th | 61 | Plowman / Drumwright / Ducote / Ware | Oreca FLM 09 | BAR1 Motorsports | 1 | 1:43.352 | 199.5640 | 5th | PC |
| 21st | 52 | Guasch / Novich / Palmer / Kimber-Smith | Oreca FLM 09 | PR1 Mathiasen Motorsports | 1 | 1:43.380 | 199.5100 | 6th | PC |
| 22nd | 85 | Goikhberg / Simpson / Mitchell | Oreca FLM 09 | JDC/Miller Motorsports | 1 | 1:43.507 | 199.2660 | 7th | PC |
| 23rd | 38 | French / Mee / Vautier | Oreca FLM 09 | Performance Tech Motorsports | 1 | 1:43.586 | 199.1130 | 8th | PC |
| 24th | 912 | Bergmeister / Bamber / Makowiecki | Porsche 991 RSR | Porsche North America | 1 | 1:44.316 | 197.7190 | 1st | GTLM |
| 25th | 98 | Lamy / Lauda / Turner / Dalla Lana | Aston Martin V8 Vantage GTE | Aston Martin Racing | 1 | 1:44.414 | 197.5340 | 2nd | GTLM |
| 26th | 911 | Tandy / Pilet / Lieb | Porsche 991 RSR | Porsche North America | 1 | 1:44.486 | 197.3990 | 3rd | GTLM |
| 27th | 3 | Magnussen / Garcia / Briscoe | Chevrolet Corvette C7.R | Corvette Racing | 1 | 1:44.500 | 197.3720 | 4th | GTLM |
| 28th | 62 | Kaffer / Rigon | Ferrari 458 Italia | Risi Competizione | 1 | 1:44.618 | 197.1500 | 5th | GTLM |
| 29th | 25 | Farfus / Auberlen / Werner / Spengler | BMW Z4 GTE | BMW Team RLL | 1 | 1:44.768 | 196.8660 | 6th | GTLM |
| 30th | 17 | Henzler / Sellers / Long | Porsche 991 RSR | Falken Tire | 1 | 1:44.779 | 196.8470 | 7th | GTLM |
| 31st | 4 | Gavin / Milner / Pagenaud | Chevrolet Corvette C7.R | Corvette Racing | 1 | 1:44.799 | 196.8080 | 8th | GTLM |
| 32nd | 51 | Perrodo / Collard / Vilander | Ferrari 458 Italia | AF Corse | 1 | 1:44.841 | 196.7290 | 9th | GTLM |
| 33rd | 24 | Edwards / Luhr / Klingmann / Rahal | BMW Z4 GTE | BMW Team RLL | 1 | 1:45.058 | 196.3240 | 10th | GTLM |
| 34th | 33 | Keating / Bleekemolen / Carter | Dodge Viper SRT | Riley Motorsports | 1 | 1:46.948 | 192.8540 | 1st | GTD |
| 35th | 93 | Carter / Keating | Dodge Viper SRT | Riley Motorsports | 1 | 1:47.245 | 192.3200 | 2nd | GTD |
| 36th | 58 | Snow / Eng / Heylen / Dempsey | Porsche 991 GT America | Wright Motorsports | 1 | 1:47.433 | 191.9840 | 3rd | GTD |
| 37th | 28 | Bachler / Zöchling / Engelhart / Willsey | Porsche 991 GT America | Konrad Motorsport | 1 | 1:47.495 | 191.8720 | 4th | GTD |
| 38th | 81 | Faulkner / Giermaziak / Skeen / Butcher / Avenatti | Porsche 991 GT America | GB Autosport | 1 | 1:47.524 | 191.8210 | 5th | GTD |
| 39th | 007 | Davison / Nielsen / Nygaard / Davis | Aston Martin V12 Vantage | TRG-AMR | 1 | 1:47.529 | 191.8110 | 6th | GTD |
| 40th | 45 | Winkelhock / Thorne / Hoshino / Fujii | Audi R8 LMS | Flying Lizard Motorsports | 1 | 1:47.581 | 191.7200 | 7th | GTD |
| 41st | 22 | MacNeil / Keen / Davis / Van Gisbergen | Porsche 991 GT America | Alex Job Racing | 1 | 1:47.581 | 191.7200 | 8th | GTD |
| 42nd | 48 | Haase / Miller / von Moltke / Rast | Audi R8 LMS | Paul Miller Racing | 1 | 1:47.669 | 191.5620 | 9th | GTD |
| 43rd | 009 | DeBoer / Doyle | Aston Martin V12 Vantage | TRG-AMR | 1 | 1:47.703 | 191.5020 | 10th | GTD |
| 44th | 49 | Lathouras / Aguas / Rugolo | Ferrari 458 Italia | AF Corse | 1 | 1:47.740 | 191.4360 | 11th | GTD |
| 45th | 64 | Longo / Serra | Ferrari 458 Italia | Scuderia Corsa | 1 | 1:47.901 | 191.1510 | 12th | GTD |
| 46th | 44 | Potter / Lally / Seefried | Porsche 991 GT America | Magnus Racing LLC | 1 | 1:47.943 | 191.0760 | 13th | GTD |
| 47th | 23 | James / Riberas / Farnbacher | Porsche 991 GT America | Team Seattle/Alex Job Racing | 1 | 1:47.970 | 191.0290 | 14th | GTD |
| 48th | 73 | | Porsche 991 GT America | Park Place Motorsports | 1 | 1:48.125 | 190.7540 | 15th | GTD |
| 49th | 63 | Sweedler / Bell / Lazzaro / Segal | Ferrari 458 Italia | Scuderia Corsa | 1 | 1:48.156 | 190.7010 | 16th | GTD |
| 50th | 19 | Michaelian / Basseng / Beretta / O'Young / De Phillippi | Porsche 991 GT America | Muehlner Motorsports America | 1 | 1:48.811 | 189.5520 | 17th | GTD |
| 51st | 97 | | BMW Z4 | Turner Motorsport | 1 | 1:55.560 | 178.4810 | 18th | GTD |
| 52nd | 18 | Michaelian / Basseng / Beretta / O'Young / De Phillippi | Porsche 991 GT America | Muehlner Motorsports America | 1 | 2:04.335 | 165.8850 | 19th | GTD |