| 1st | 01 | Pruett / Papis | Riley Mk XI Lexus | CompUSA Chip Ganassi with Felix Sabates | 1:28.575 | 1:28.5750 | 1:30.1260 | 1:29.8410 | 1:29.4570 |
| 2nd | 10 | Angelelli / Taylor / Collard | Riley Mk XI Pontiac | SunTrust Racing | 1:28.727 | 1:28.7270 | 1:29.3080 | 1:29.3130 | 1:29.1960 |
| 3rd | 58 | Donohue / Law / Maassen | Fabcar FDSC/03 Porsche | Red Bull - Brumos - Goodyear - Kendall | 1:29.750 | 1:29.7500 | 1:31.9480 | 1:31.7940 | 1:30.2070 |
| 4th | 02 | Morales / Diaz | Riley Mk XI Lexus | CompUSA Chip Ganassi with Felix Sabates | 1:30.214 | 1:30.8650 | 1:30.2140 | 1:32.2180 | 1:30.3320 |
| 5th | 6 | Negri / Frisselle | Doran JE4 Lexus | Michael Shank Racing | 1:30.300 | 1:30.9630 | 1:32.5690 | 1:30.3000 | 1:31.6990 |
| 6th | 27 | Magnussen / Theys | Doran JE4 Lexus | Doran Lista Racing | 1:30.395 | 1:30.3950 | 1:31.4150 | 1:31.3490 | 1:30.8290 |
| 7th | 4 | Leitzinger / Forbes-Robinson / *Edwards | Crawford DP03 Pontiac | Howard - Boss Motorsports | 1:30.458 | 1:30.4580 | 1:31.3370 | 1:33.3530 | 1:31.9450 |
| 8th | 59 | France / Luhr / Haywood | Fabcar FDSC/03 Porsche | Brumos - Goodyear - Kendall | 1:30.859 | 1:30.8590 | 1:32.0290 | 1:32.6440 | 1:31.6790 |
| 9th | 54 | Pilgrim / Barber / Borcheller | Doran JE4 Pontiac | Kodak - Bell Motorsports | 1:30.994 | 1:30.9940 | 1:31.9220 | 1:33.5270 | 1:33.7720 |
| 10th | 5 | Pruskowski / Pruskowski / Bentley | Multimatic MDP1 Ford Focus | Essex Racing | 1:31.273 | 1:31.2730 | 1:32.5870 | 1:33.3340 | 1:34.2300 |
| 11th | 81 | Wagner / Martini / Collins | Doran JE4 BMW | Rx.com/G&W Motorsports | 1:31.387 | no time | 1:31.3870 | | |
| 12th | 2 | Duno / Wallace / Lammers | Crawford DP03 Pontiac | Howard - Boss Motorsports | 1:31.577 | 1:34.6150 | 1:31.5770 | 1:32.4980 | 1:31.8600 |
| 13th | 39 | Hall / Huang / Davis | Crawford DP03 Pontiac | Silverstone Racing Services | 1:31.579 | 1:32.7150 | 1:31.5790 | 1:34.4610 | |
| 14th | 09 | Goad / Grégoire | Crawford DP03 Pontiac | Spirit of Daytona Racing | 1:31.860 | 1:32.4710 | 1:31.8600 | 1:33.0990 | 1:34.1980 |
| 15th | 7 | Lewis / Rice / *Southard | Fabcar FDSC/03 BMW | Southard Motorsports | 1:33.302 | 1:33.3020 | 1:35.0860 | 1:36.0840 | 1:35.9280 |
| 16th | 3 | Grala / Lloyd / Borkowski | Fabcar FDSC/03 Lexus | Cegwa Sport | 1:35.394 | 1:36.0300 | 1:35.3940 | 1:37.4290 | 1:36.5270 |
| 17th | 80 | Guenette / Guenette / *Letourneau | Picchio DP2 BMW | G&W Motorsports | 1:35.857 | 1:35.8570 | 1:36.3320 | 1:38.1920 | 1:37.3510 |
| 18th | 21 | Said / Auberlen | BMW M3 E46 | Prototype Technology Group | 1:36.238 | 1:37.0910 | 1:36.5190 | 1:36.2380 | 1:36.9210 |
| 19th | 22 | Hand / Marks | BMW M3 E46 | Prototype Technology Group | 1:37.256 | 1:37.5080 | 1:37.3710 | 1:37.2560 | 1:37.3700 |
| 20th | 66 | James / Valentine / Gleason | Porsche 996 GT3-RS | The Racers Group | 1:37.270 | 1:37.2700 | 1:37.8470 | 1:38.0180 | 1:37.7760 |
| 21st | 12 | Said / Auberlen | BMW M3 E46 | Prototype Technology Group | 1:37.377 | | | 1:37.3770 | 1:37.9510 |
| 22nd | 67 | Buckler / Halliday / Kroczek | Porsche 996 GT3-RS | The Racers Group | 1:37.619 | 1:37.6190 | 1:38.2250 | 1:37.8020 | 1:38.8500 |
| 23rd | 11 | Alexander / Gay / Mediani | Ferrari 360 Modena N-GT | JMB Racing USA | 1:37.699 | 1:37.6990 | 1:38.2060 | 1:39.3720 | 1:39.5060 |
| 24th | 44 | Fitzgerald / Policastro, Jr. / Policastro | Porsche 996 GT3-RS | Orbit Racing | 1:37.705 | 1:37.7050 | 1:37.8390 | 1:38.3390 | 1:37.9100 |
| 25th | 33 | Barbosa / Assentato / Earle | Maserati Trofeo Light | Scuderia Ferrari of Washington | 1:38.146 | 1:38.5600 | 1:38.1460 | 1:38.6590 | 1:38.9510 |
| 26th | 77 | Pumpelly / Liddell / Greenberg | Porsche 996 GT3-RS | G&W Motorsports | 1:38.586 | 1:39.2440 | 1:38.5860 | | |
| 27th | 85 | Stroll / Longhi / Rehm | Ferrari 360 Modena GT | Falcon Racing | 1:39.083 | 1:44.5250 | 1:39.5310 | 1:39.6860 | 1:39.0830 |
| 28th | 62 | Halsmer / Schmitt | Acura NSX | Honda of America Racing Team | 1:39.769 | 1:39.7690 | 1:41.7520 | 1:41.3920 | 1:40.3570 |
| 29th | 57 | Vance / McQueen / Schuitemaker | Porsche 996 GT3-R | Stevenson Motorsports/Auto Assets | 1:40.496 | 1:40.4960 | 1:40.7550 | 1:44.0810 | 1:41.9190 |
| 30th | 38 | Lally / Bunting | Porsche 996 GT3 Cup | TPC Racing | 1:41.573 | 1:41.6850 | 1:42.7610 | 1:41.5730 | 1:42.0690 |
| 31st | 36 | Pobst / Levitas / *Maxwell | Porsche 996 GT3 Cup | TPC Racing | 1:41.815 | 1:41.8150 | 1:42.3010 | 1:41.8600 | 1:42.5270 |
| 32nd | 07 | Camirand / Guindon | Chevrolet Corvette Z06 | Powell Motorsport | 1:42.306 | 1:42.3060 | 1:43.2550 | 1:42.8860 | 1:43.1860 |
| 33rd | 71 | Wilkins / Lacey / *Wilden | Porsche 996 GT3 Cup | Doncaster Racing | 1:42.598 | 1:44.8110 | 1:44.5180 | 1:42.5980 | 1:43.2820 |
| 34th | 91 | Dumoulin / Julien / Long | Porsche 996 GT3 Cup | Doncaster Racing | 1:42.685 | 1:42.6850 | 1:43.4260 | 1:42.9140 | 1:42.8660 |
| 35th | 86 | Murry / Van Wijk / Krohn | Porsche 996 GT3 Cup | G&W Motorsports | 1:43.265 | 1:43.4680 | 1:43.2650 | 1:46.2240 | 1:44.8080 |
| 36th | 37 | Adam / Littlechild | Porsche 996 GT3 Cup | TPC Racing | 1:43.515 | 1:43.5700 | 1:43.9260 | 1:43.5150 | 1:43.9500 |
| 37th | 41 | Nonnamaker / Nonnamaker / Nonnamaker | Porsche 996 GT3 Cup | Orison-Planet Earth Motorsports | 1:43.585 | 1:45.3650 | 1:43.5850 | 1:43.7310 | 1:44.9460 |
| 38th | 46 | Martin / Yeakle / St. Amour | Chevrolet Corvette Z06 | Michael Baughman Racing | 1:44.209 | 1:48.1090 | 1:44.2090 | 1:46.4560 | 1:46.8110 |
| 39th | 47T | Ward / Baughman / *Nonnamaker / *Nonnamaker | Porsche 996 GT3 Cup | Orison-Planet Earth Motorsports | 1:44.710 | 1:47.5230 | 1:45.3520 | 1:44.7100 | 1:46.9720 |
| 40th | 47 | Ward / Baughman | Porsche 996 GT3 Cup | Michael Baughman Racing | 1:46.373 | | | 1:46.3730 | |