| 1st | 01 | Pruett / Rojas / Montoya / Franchitti | Riley Mk XI Lexus | Chip Ganassi with Felix Sabates | 695 | 24:00:29.448 | 165.8542 | | 1st | DP | 1:43.5400 | 25 |
| 2nd | 99 | Gurney / Fogarty / Vasser / Johnson | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 693 | 24:02:10.922 | 165.1815 | | 2nd | DP | 1:43.5770 | 26 |
| 3rd | 9 | Briscoe / Castroneves / Busch | Riley Mk XI Pontiac | Penske-Taylor Racing | 689 | 24:01:43.528 | 164.2802 | | 3rd | DP | 1:43.5260 | 36 |
| 4th | 76 | Jönsson / Zonta / Turner | Riley Mk XI Pontiac | Krohn Racing | 688 | 24:02:16.490 | 163.9793 | | 4th | DP | 1:43.4140 | 83 |
| 5th | 10 | Taylor / Angelelli / Valiante / Taylor | Riley Mk XI Pontiac | SunTrust Racing | 687 | 24:01:44.513 | 163.8022 | | 5th | DP | 1:42.8840 | 132 |
| 6th | 60 | Patterson / Negri / Wilson / Rahal | Riley Mk XX Ford | Michael Shank Racing | 680 | 24:01:23.331 | 162.1720 | | 6th | DP | 1:43.1550 | 25 |
| 7th | 75 | Krohn / van de Poele / Gavin | Riley Mk XI Pontiac | Krohn Racing | 678 | 24:02:17.233 | 161.5958 | | 7th | DP | 1:43.4920 | 80 |
| 8th | 91 | Matthews / Goossens / O'Connell / Hunter-Reay | Riley Mk XX Pontiac | Bob Stallings/Riley-Matthews | 676 | 24:01:04.993 | 161.2531 | | 8th | DP | 1:43.4250 | 25 |
| 9th | 70 | Haskell / Tremblay / Ham / Matos | Mazda RX-8 | SpeedSource | 664 | 24:02:25.171 | 158.2436 | | 1st | GT | 1:51.6600 | 125 |
| 10th | 66 | Miller / Ballou / Lally / Westbrook | Porsche 997 GT3 Cup | TRG | 657 | 24:01:58.711 | 156.6230 | | 2nd | GT | 1:51.6190 | 124 |
| 11th | 67 | Pumpelly / Collard / Sellers / Dumas / George, Jr. | Porsche 997 GT3 Cup | TRG | 657 | 24:01:59.069 | 156.6230 | | 3rd | GT | 1:51.4750 | 126 |
| 12th | 64 | Lowe / Pace / Van Overbeek / Sugden / Valentine | Porsche 997 GT3 Cup | TRG | 656 | 24:01:59.764 | 156.3832 | | 4th | GT | 1:52.4310 | 39 |
| 13th | 69 | Assentato / Segal / Longhi / Pechnik | Mazda RX-8 | SpeedSource | 653 | 24:01:38.150 | 155.7072 | | 5th | GT | 1:52.8180 | 93 |
| 14th | 6 | Pew / James / Allmendinger / Frisselle | Riley Mk XX Ford | Michael Shank Racing | 652 | 24:01:04.196 | 155.5302 | | 9th | DP | 1:43.0710 | 36 |
| 15th | 09 | Cosmo / Camirand / McDowell | Fabcar FDSC/03 Evo Porsche | Spirit of Daytona Racing | 652 | 24:01:51.986 | 155.4433 | | 10th | DP | 1:45.3800 | 87 |
| 16th | 80 | Greenberg / Faulkner / Heylen / Arnold | Porsche 997 GT3 Cup | Synergy Racing | 651 | 24:02:07.501 | 155.1778 | | 6th | GT | 1:51.6410 | 109 |
| 17th | 07 | Edwards / Collins / Magnussen | Pontiac GXP.R | Banner Racing | 647 | 24:00:40.490 | 154.3795 | | 7th | GT | 1:51.8430 | 120 |
| 18th | 87 | Farnbacher / Ehret / Bernhard / Werner | Porsche 997 GT3 Cup | Farnbacher Loles | 646 | 24:00:39.547 | 154.1414 | | 8th | GT | 1:51.7910 | 7 |
| 19th | 57 | Liddell / Davis / Pobst / Jeannette | Pontiac GXP.R | Stevenson Motorsports | 644 | 24:00:49.581 | 153.6473 | | 9th | GT | 1:52.3220 | 24 |
| 20th | 30 | Dobson / Thorne / Staveley / Stone | Mazda RX-8 | Racers Edge Motorsports | 642 | 24:00:46.607 | 153.1758 | | 10th | GT | 1:51.7960 | 7 |
| 21st | 74 | Skea / Patch / Hamblin / Safina / Murry | Porsche 997 GT3 Cup | Autometrics Motorsports | 638 | 24:01:19.436 | 152.1635 | | 11th | GT | 1:52.2510 | 21 |
| 22nd | 88 | Stippler / Kaffer / Lacey / Wilkins / Curran | Porsche 997 GT3 Cup | Farnbacher Loles | 637 | 24:02:24.528 | 151.8110 | | 12th | GT | 1:52.2930 | 7 |
| 23rd | 59 | France / Barbosa / Borcheller / Haywood | Riley Mk XI Porsche | Brumos Racing | 622 | 24:02:08.377 | 148.2624 | | 11th | DP | 1:43.7240 | 72 |
| 24th | 84 | Bingham / Pickering / Cotter / Pennington | Porsche 997 GT3 Cup | Farnbacher Loles | 619 | 23:50:49.060 | 148.7163 | DNF | 13th | GT | 1:54.8430 | 22 |
| 25th | 03 | Carpenter / Foyt / Meira / Andretti | Crawford DP03 Porsche | Vision Racing | 615 | 22:37:54.248 | 155.6879 | DNF | 12th | DP | 1:44.7110 | 41 |
| 26th | 44 | Paquette / Nixon / Arnold / Van Zanten, Jr. | Porsche 996 GT3 Cup | Bullet Racing | 615 | 24:01:59.370 | 146.6096 | | 14th | GT | 1:55.9010 | 36 |
| 27th | 58 | Law / Donohue / Rice | Riley Mk XI Porsche | Brumos Racing | 611 | 24:02:09.298 | 145.6392 | | 13th | DP | 1:42.8600 | 88 |
| 28th | 7 | Plumb / Wahl / Grégoire / Cullen / Shovlin | Riley Mk XI BMW | Sigalsport | 601 | 24:01:37.274 | 143.3089 | | 14th | DP | 1:43.7460 | 24 |
| 29th | 17 | Zitza / Jensen / Jensen / Taylor | Porsche 997 GT3 Cup | Terra Firma Motorsports | 599 | 24:02:24.658 | 142.7536 | | 15th | GT | 1:52.9720 | 180 |
| 30th | 72 | Aschenbach / Lewis, Jr. / Stanton / Papis | Pontiac GXP.R | Autohaus Motorsports | 590 | 24:02:26.208 | 140.6068 | | 16th | GT | 1:52.9890 | 75 |
| 31st | 34 | Willsley / Papadopoulos / Fitzgerald / Mowlem | Porsche 997 GT3 Cup | Orbit | 589 | 24:01:02.065 | 140.5054 | | 17th | GT | 1:52.7140 | 9 |
| 32nd | 65 | Oasis / Atherton / Stout / Daskalos / Archer | Porsche 997 GT3 Cup | TRG | 585 | 24:01:57.677 | 139.4609 | | 18th | GT | 1:52.6720 | 24 |
| 33rd | 86 | Henzler / Lux / Keen / Maassen / Bergmeister | Porsche 997 GT3 Cup | Farnbacher Loles | 580 | 24:01:27.192 | 138.3183 | | 19th | GT | 1:51.6580 | 40 |
| 34th | 52 | Ragazzi / Min Effiniz / Bertuzzi / Castellano / Machado | Ferrari F430 Challenge | Mastercar | 578 | 24:01:09.365 | 137.8693 | | 20th | GT | 1:53.0950 | 25 |
| 35th | 85 | Kitch / Bentley / Miller / Pallis | Porsche 997 GT3 Cup | Farnbacher Loles | 572 | 24:01:25.806 | 136.4112 | | 21st | GT | 1:53.5520 | 7 |
| 36th | 23 | Auberlen / Hand / Long / Wallace | Crawford DP03 Porsche | Alex Job Racing | 569 | 19:50:07.238 | 164.3510 | DNF | 15th | DP | 1:43.4720 | 85 |
| 37th | 06 | Reese / Nearn / Pilgrim / Bunting | Pontiac GXP.R | Banner Racing | 564 | 24:01:22.287 | 134.5090 | | 22nd | GT | 1:52.8570 | 42 |
| 38th | 81 | Johnson / Doornbos / Lietz / Huisman | Porsche 997 GT3 Cup | Synergy Racing | 558 | 24:02:07.328 | 133.0091 | | 23rd | GT | 1:52.0270 | 23 |
| 39th | 40 | Foster / Espenlaub / Dempsey / Kapudija / Maxwell | Mazda RX-8 | Hyper Sport | 552 | 24:01:28.892 | 131.6379 | | 24th | GT | 1:53.2760 | 8 |
| 40th | 68 | Gomez / Auriemma / Mayes / Schroeder / Milner | Porsche 997 GT3 Cup | TRG | 550 | 24:01:56.890 | 131.1181 | | 25th | GT | 1:53.6780 | 76 |
| 41st | 77 | Gidley / Jaeger / Gollin / Gardel | Doran JE4 Ford | Doran Racing | 546 | 24:00:30.103 | 130.2957 | | 16th | DP | 1:43.6130 | 39 |
| 42nd | 3 | Lewis / Lester / Christopher / Barron | Riley Mk XI Lexus | Southard Motorsports | 527 | 20:04:08.901 | 150.4463 | DNF | 17th | DP | 1:44.9320 | 25 |
| 43rd | 14 | Friedman / McGehee / Lazzaro / Kelleners | Porsche 997 GT3 Cup | Autometrics Motorsports | 524 | 21:22:53.500 | 140.4072 | DNF | 26th | GT | 1:52.8710 | 123 |
| 44th | 02 | Dixon / Wheldon / Duran / Lloyd | Riley Mk XI Lexus | Chip Ganassi with Felix Sabates | 515 | 18:56:44.321 | 155.7394 | DNF | 18th | DP | 1:42.8020 | 75 |
| 45th | 21 | Reindler / Alessi / Prewitt / Trenery / Rice | Pontiac GTO.R | Matt Connolly Motorsports | 513 | 24:00:59.335 | 122.3793 | | 27th | GT | 1:52.4840 | 7 |
| 46th | 62 | Ragginger / Burtin / Baldwin / Tucker / Zabinski | Porsche 997 GT3 Cup | TRG | 511 | 20:59:52.868 | 139.4255 | DNF | 28th | GT | 1:51.8030 | 22 |
| 47th | 27 | O'Connell / Roush / Plumb / Wilson | Porsche 997 GT3 Cup | O'Connell Racing | 473 | 18:33:00.182 | 146.0882 | DNF | 29th | GT | 1:51.9300 | 30 |
| 48th | 61 | Frisselle / Wilkins / Ranger / Braun | Riley Mk XX Ford | AIM Autosport | 448 | 16:47:44.480 | 152.8201 | DNF | 19th | DP | 1:43.0200 | 71 |
| 49th | 29 | Rosenzweig / Woodman / Gabel / Dumoulin | Porsche 997 GT3 Cup | Alegra Motorsports | 418 | 18:40:15.678 | 128.2647 | DNF | 30th | GT | 1:54.0160 | 44 |
| 50th | 43 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 401 | 19:04:30.488 | 120.4417 | DNF | 31st | GT | 1:55.5860 | 32 |
| 51st | 83 | Crews / Walker / Ludwig / McCrackin / Bergmeister | Porsche 997 GT3 Cup | Farnbacher Loles | 397 | 16:52:17.967 | 134.8131 | DNF | 32nd | GT | 1:54.3340 | 21 |
| 52nd | 26 | Jacalone / Jacalone / Michaelian / Michaelian | Porsche 997 GT3 Cup | Gotham Competition | 364 | 15:09:45.353 | 137.5394 | DNF | 33rd | GT | 1:56.0840 | 34 |
| 53rd | 89 | Drudi / Giammaria / Rosa / Hardt / Petrobelli | Porsche 997 GT3 Cup | Farnbacher Loles | 284 | 11:21:12.897 | 143.3121 | DNF | 34th | GT | 1:52.2080 | 10 |
| 54th | 50 | Farano / Jensen / Cloud / Said / Bradley | Ford Mustang | Blackforest Motorsports | 255 | 23:22:09.349 | 62.5166 | DNF | 35th | GT | 1:53.7960 | 5 |
| 55th | 2 | Rockenfeller / McNish / Luhr | Riley Mk XI Pontiac | SAMAX | 233 | 8:09:44.430 | 163.5464 | DNF | 20th | DP | 1:43.2810 | 119 |
| 56th | 31 | Ingham / Schultis / Contini / Frost / Konôpka | Chase CCE-001 Pontiac | Matt Connolly Motorsports | 231 | 9:51:24.831 | 134.2676 | DNF | 21st | DP | 1:48.8130 | 23 |
| 57th | 15 | Nastasi / Empringham / Dumoulin / Said | Ford Mustang | Blackforest Motorsports | 177 | 6:23:43.219 | 158.5654 | DNF | 36th | GT | 1:53.1060 | 85 |
| 58th | 16 | Garcia / Bobbi / Babini / Ortelli | Coyote CC/08 Pontiac | Cheever Racing | 170 | 6:47:16.647 | 143.4859 | DNF | 22nd | DP | 1:43.9800 | 34 |
| 59th | 90 | Thornton / Long / Varde / Russell | BMW M6 | Automatic Racing | 163 | 6:10:57.437 | 151.0482 | DNF | 37th | GT | 1:52.8180 | 22 |
| 60th | 22 | de Quesada / Basseng / Swartzbaugh / Pilet | Porsche 997 GT3 Cup | Alegra Motorsports | 149 | 6:25:10.683 | 132.9769 | DNF | 38th | GT | 1:52.2770 | 6 |
| 61st | 11 | Dalziel / Enge / Primat | Riley Mk XI Pontiac | SAMAX | 97 | 3:18:18.551 | 168.1426 | DNF | 23rd | DP | 1:43.8650 | 33 |
| 62nd | 08 | Goldin / Goldin / Meassick / Kennedy | Mazda RX-8 | Goldin Brothers Racing | 83 | 4:44:06.306 | 100.4263 | DNF | 39th | GT | 1:59.8500 | 21 |
| 63rd | 12 | Bell / Kasemets | Riley Mk XI Pontiac | RVO Motorsports | 65 | 2:14:54.692 | 165.6208 | DNF | 24th | DP | 1:44.4920 | 44 |
| 64th | 56 | Marsh / Montanari | Ferrari F430 Challenge | Mastercar | 55 | 1:59:53.012 | 157.7077 | DNF | 40th | GT | 1:52.8530 | 4 |
| 65th | 51 | Newton / Erdos | Coyote CC/08 Pontiac | Cheever Racing | 45 | 1:32:53.020 | 166.5414 | DNF | 25th | DP | 1:46.2900 | 44 |
| 66th | 63 | Ende / Maher | Porsche 997 GT3 Cup | TRG | 31 | 1:07:00.164 | 159.0450 | DNF | 41st | GT | 1:54.0650 | 6 |