| 1st | 01 | Papis / Pruett | Riley Mk XI Lexus | CompUSA Chip Ganassi with Felix Sabates | 164 | 6:00:25.896 | 897.3702 kms | 149.3825 | | 1st | DP | 1:46.4580 | 144 | |
| 2nd | 10 | Angelelli / Taylor | Riley Mk XI Pontiac | SunTrust Racing | 164 | 6:00:52.912 | 897.3702 kms | 149.6690 | | 2nd | DP | 1:45.3770 | 162 | 186.9317 |
| 3rd | 02 | Diaz / Morales | Riley Mk XI Lexus | CompUSA Chip Ganassi with Felix Sabates | 164 | 6:01:18.742 | 897.3702 kms | 149.6690 | | 3rd | DP | 1:46.2290 | 35 | |
| 4th | 4 | Leitzinger / Forbes-Robinson / Edwards | Crawford DP03 Pontiac | Howard - Boss Motorsports | 164 | 6:01:24.339 | 897.3702 kms | 149.6690 | | 4th | DP | 1:47.6830 | 157 | |
| 5th | 27 | Magnussen / Theys | Doran JE4 Lexus | Doran Lista Racing | 163 | 6:00:54.051 | 891.8984 kms | 148.0596 | | 5th | DP | 1:47.3250 | 65 | |
| 6th | 58 | Law / Maassen / Donohue | Fabcar FDSC/03 Porsche | Red Bull - Brumos - Goodyear - Kendall | 163 | 6:01:41.799 | 891.8984 kms | 148.0596 | | 6th | DP | 1:47.2350 | 132 | |
| 7th | 2 | Duno / Wallace / Lammers | Crawford DP03 Pontiac | CITGO - Howard - Boss Motorsports | 162 | 6:00:43.890 | 886.4266 kms | 148.0596 | | 7th | DP | 1:46.9910 | 127 | |
| 8th | 6 | Negri / Frisselle | Doran JE4 Lexus | Michael Shank Racing | 162 | 6:01:11.441 | 886.4266 kms | 146.4503 | | 8th | DP | 1:47.6450 | 81 | |
| 9th | 54 | Barber / Pilgrim / Borcheller | Doran JE4 Pontiac | Kodak - Bell Motorsports | 162 | 6:01:21.186 | 886.4266 kms | 146.4503 | | 9th | DP | 1:47.3300 | 143 | |
| 10th | 59 | France / Haywood / Luhr | Fabcar FDSC/03 Porsche | Brumos - Goodyear - Kendall | 161 | 6:02:09.131 | 880.9550 kms | 146.4503 | | 10th | DP | 1:48.0870 | 80 | |
| 11th | 21 | Auberlen / Said | BMW M3 E46 | Prototype Technology Group | 160 | 6:01:56.586 | 875.4832 kms | 144.8410 | | 1st | GT | 1:53.5730 | 110 | 173.7480 |
| 12th | 30 | Lazzaro / Kelleners | Ferrari 360 Modena GT | Risi Competizione | 158 | 6:02:05.957 | 864.5396 kms | 143.2316 | | 2nd | GT | 1:54.2510 | 66 | |
| 13th | 09 | Goad / Grégoire | Crawford DP03 Pontiac | Spirit of Daytona Racing | 157 | 6:00:43.051 | 859.0678 kms | 143.2316 | | 11th | DP | 1:49.7640 | 22 | |
| 14th | 44 | Fitzgerald / Policastro, Jr. / Policastro | Porsche 996 GT3-RS | Orbit Racing | 155 | 6:00:57.099 | 848.1243 kms | 141.6223 | | 3rd | GT | 1:55.2570 | 11 | |
| 15th | 66 | James / Gleason / Valentine | Porsche 996 GT3-RS | The Racers Group | 155 | 6:01:54.992 | 848.1243 kms | 140.0129 | | 4th | GT | 1:55.3280 | 11 | |
| 16th | 38 | Lally / Bunting | Porsche 996 GT3 Cup | TPC Racing | 154 | 6:01:53.581 | 842.6525 kms | 140.0129 | | 1st | SGS | 1:59.9590 | 35 | |
| 17th | 37 | Pumpelly / Adam / Littlechild | Porsche 996 GT3 Cup | TPC Racing | 153 | 6:01:53.866 | 837.1808 kms | 138.4036 | | 2nd | SGS | 2:00.0210 | 35 | |
| 18th | 71 | Lacey / Wilkins / Dumoulin | Porsche 996 GT3 Cup | Doncaster Racing | 151 | 6:02:14.538 | 826.2372 kms | 136.7942 | | 3rd | SGS | 2:02.0460 | 84 | |
| 19th | 99 | Nearn / Schumacher | Porsche 996 GT3-RS | Schumacher Racing | 151 | 6:02:33.421 | 826.2372 kms | 136.7942 | | 5th | GT | 1:56.8060 | 111 | |
| 20th | 86 | McDowell / Van Wijk / Nastasi | Porsche 996 GT3 Cup | G&W Motorsports | 149 | 6:00:33.462 | 815.2937 kms | 135.1849 | | 4th | SGS | 2:00.4620 | 43 | |
| 21st | 42 | Shanaman / Shanaman / Nonnamaker | Porsche 996 GT3 Cup | Orison-Planet Earth Motorsports | 149 | 6:01:37.811 | 815.2937 kms | 135.1849 | | 5th | SGS | 2:03.0890 | 135 | |
| 22nd | 33 | Barbosa / Assentato / Earle | Maserati Trofeo Light | Scuderia Ferrari of Washington | 148 | 6:00:59.151 | 809.8219 kms | 135.1849 | | 6th | GT | 1:56.0930 | 11 | |
| 23rd | 04 | Sigal / Alfonso / Castillo | Porsche 996 GT3 Cup | Grease Monkey Racing | 146 | 6:01:24.419 | 798.8784 kms | 131.9662 | | 6th | SGS | 2:04.1940 | 126 | |
| 24th | 81 | Wagner / Martini / Collins | Doran JE4 BMW | Rx.com/G&W Motorsports | 146 | 6:01:24.668 | 798.8784 kms | 131.9662 | | 12th | DP | 1:46.9280 | 10 | |
| 25th | 41 | Nonnamaker / Nonnamaker | Porsche 996 GT3 Cup | Orison-Planet Earth Motorsports | 146 | 6:02:05.220 | 798.8784 kms | 131.9662 | | 7th | SGS | 2:00.2760 | 108 | |
| 26th | 11 | Orts / Michaelian / Gay | Ferrari 360 Modena N-GT | JMB Racing USA | 146 | 6:02:07.421 | 798.8784 kms | 131.9662 | | 7th | GT | 2:00.7360 | 129 | |
| 27th | 92 | Cosmo / Gilbet / Stewart | Porsche 996 GT3 Cup | Apple Motorsports | 145 | 6:01:32.901 | 793.4066 kms | 131.9662 | | 8th | SGS | 2:02.3850 | 11 | |
| 28th | 22 | Hand / Marks | BMW M3 E46 | Prototype Technology Group | 145 | 6:01:39.973 | 793.4066 kms | 131.9662 | | 8th | GT | 1:54.0870 | 52 | |
| 29th | 43 | Shelton, Jr. / Shelton / Shelton | Porsche 996 GT3 Cup | Orison-Planet Earth Motorsports | 143 | 6:00:30.118 | 782.4631 kms | 130.3569 | | 9th | SGS | 2:05.4310 | 34 | |
| 30th | 73 | Baldwin / Tafel | Porsche 996 GT3 Cup | Baldwin-Tafel Racing | 139 | 5:37:28.475 | 760.5760 kms | 135.1849 | Wheel | 10th | SGS | 2:00.6450 | 42 | |
| 31st | 47 | Ward / Baughman | Porsche 996 GT3 Cup | Michael Baughman Racing | 134 | 6:01:54.118 | 733.2172 kms | 122.3101 | | 11th | SGS | 2:03.6500 | 58 | |
| 32nd | 9 | Borkowski / Mears, Jr. / Tremblay | Riley Mk XI Pontiac | Mears Motorcoach/SpeedSource | 132 | 5:56:21.830 | 722.2736 kms | 122.3101 | Fuel system | 13th | DP | 1:48.0120 | 35 | |
| 33rd | 57 | Vance / Lewis / Stevenson | Porsche 996 GT3-R | Stevenson Motorsports/Auto Assets | 124 | 6:00:49.635 | 678.4995 kms | 112.6541 | | 9th | GT | 1:56.6250 | 11 | |
| 34th | 67 | Halliday / Buckler / Kroczek | Porsche 996 GT3-RS | The Racers Group | 105 | 6:00:56.666 | 574.5358 kms | 94.9513 | | 10th | GT | 2:01.0280 | 21 | |
| 35th | 36 | Pobst / Levitas | Porsche 996 GT3 Cup | TPC Racing | 72 | 5:36:03.952 | 393.9674 kms | 70.8111 | Radiator | 12th | SGS | 2:00.4470 | 16 | |
| 36th | 46 | Longhi / Patterson / Pew | Chevrolet Corvette Z06 | Michael Baughman Racing | 66 | 2:53:11.410 | 361.1368 kms | 125.5288 | Accident | 13th | SGS | 2:02.9200 | 9 | |
| 37th | 16 | Murry | Porsche 996 GT3 Cup | AASCO Motorsports | 55 | 2:20:21.359 | 300.9473 kms | 128.7475 | Gearbox | 14th | SGS | 1:59.2110 | 45 | 165.2394 |
| 38th | 65 | Master / Choulochas | Porsche 996 GT3 Cup | The Racers Group | 46 | 2:04:46.037 | 251.7014 kms | 120.7008 | Accident | 15th | SGS | 2:05.4380 | 34 | |
| 39th | 39 | Hall / Huang / Davis | Crawford DP03 Pontiac | Silverstone Racing Services | 34 | 3:10:34.628 | 186.0402 kms | 57.9364 | Cooling system | 14th | DP | 1:50.9820 | 27 | |
| 40th | 72 | Matos | Porsche 996 GT3 Cup | Jack Lewis Enterprises | 26 | 1:13:42.785 | 142.2660 kms | 115.8728 | Off course | 11th | GT | 2:02.0310 | 26 | |
| 41st | 24 | Bambard | Chevrolet Corvette C5 | Specter Werks/Sports | 15 | 39:15.784 | 82.0766 kms | 125.5288 | Accident | 12th | GT | 1:57.9050 | 12 | |
| 42nd | 34 | Segal | Ferrari 360 Modena GT | Scuderia Ferrari of Washington | 15 | 39:17.638 | 82.0766 kms | 125.5288 | Accident | 13th | GT | 1:58.9630 | 12 | |
| 43rd | 5 | Pruskowski / Bentley | Multimatic MDP1 Ford Focus | Essex Racing | 12 | 1:47:47.494 | 65.6612 kms | 37.0149 | Vibration | 15th | DP | 1:53.6810 | 3 | |
| 44th | 7 | Lewis | Fabcar FDSC/03 BMW | Southard Motorsports | 10 | 1:31:40.229 | 54.7177 kms | 35.4056 | Clutch | 16th | DP | 2:04.3940 | 1 | |