| 1st | 01 | Pruett / Papis / Dixon / Morales | Riley Mk XI Lexus | CGR Grand Am | 1:45.7830 | 194.9785 | 1:45.7830 | |
| 2nd | 10 | Angelelli / Taylor / Collard | Riley Mk XI Pontiac | SunTrust Racing | 1:46.0950 | 194.4039 | 1:46.0950 | |
| 3rd | 54 | Pilgrim / Borcheller / Fittipaldi / Barber | Doran JE4 Pontiac | Bell Motorsports | 1:46.2830 | 194.0611 | 1:46.2830 | |
| 4th | 2 | Wallace / Earnhardt, Jr. / Stewart | Crawford DP03 Chevrolet | Howard - Boss Motorsports | 1:46.3760 | 193.8905 | 1:46.3760 | |
| 5th | 58 | Donohue / Law / Luhr / Maassen | Fabcar FDSC/03 Porsche | Red Bull - Brumos Porsche | 1:46.4410 | 193.7731 | 1:46.4410 | |
| 6th | 27 | Theys / Goossens / Lammers / Lienhard | Doran JE4 Lexus | Doran Lista Racing | 1:47.7510 | 191.4170 | | 1:47.7510 |
| 7th | 4 | Leitzinger / Forbes-Robinson / Johnson / Brule | Crawford DP03 Chevrolet | Howard - Boss Motorsports | 1:47.7800 | 191.3655 | 1:47.7800 | |
| 8th | 6 | Collins / Erdos / Wagner / Newton | Doran JE4 Lexus | Michael Shank Racing | 1:48.2280 | 190.5737 | 1:48.2280 | |
| 9th | 09 | Goad / Gordon / Duno / Grégoire | Crawford DP03 Pontiac | Spirit of Daytona Racing | 1:48.6430 | 189.8447 | 1:48.6430 | |
| 10th | 59 | France / Haywood / Sharp / Riggins | Fabcar FDSC/03 Porsche | Brumos Racing | 1:48.6620 | 189.8125 | 1:48.6620 | |
| 11th | 7 | Lewis / Robinson / Baldwin / Rice / Southard | Fabcar FDSC/03 BMW | Southard Motorsports | 1:48.8790 | 189.4343 | 1:48.8790 | |
| 12th | 70 | Tremblay / Wellman / Hall / Huang | Multimatic MDP1 Ford Focus | SpeedSource | 1:49.2400 | 188.8082 | 1:49.2400 | |
| 13th | 5 | Maxwell / Pruskowski / Pruskowski / Bentley | Multimatic MDP1 Ford Focus | Essex Racing | 1:49.5020 | 188.3560 | 1:49.5020 | |
| 14th | 9 | Borkowski / Mears, Jr. / Luyendyk, Jr. / Ham / Bell | Multimatic MDP1 Ford Focus | Mears Motorcoach/SpeedSource | 1:50.3040 | 186.9865 | 1:50.3040 | |
| 15th | 45 | Jeannette / Brockman / Newman / Petty | Fabcar FDSC/03 Porsche | Gunnar Racing | 1:50.4190 | 186.7917 | 1:50.4190 | |
| 16th | 80 | Guenette / Workman / Marshall / Marshall / *Spatafora | Picchio DP2 BMW | G&W Motorsports | 1:51.9200 | 184.2860 | 1:51.9200 | |
| 17th | 74 | Pechnik / Neiman / Van Overbeek / Cunningham / Rockenfeller | Porsche 996 GT3 Cup | Flying Lizard Motorsports | 1:53.3570 | 181.9508 | 1:53.3570 | |
| 18th | 66 | Buckler / Bernhard / Long / Bergmeister | Porsche 996 GT3-RS | The Racers Group/Monster Cable | 1:53.5430 | | 1:53.4930 | 1:53.5430 |
| 19th | 44 | Fitzgerald / Liddell / Mowlem / Policastro / Policastro, Jr. | Porsche 996 GT3-RS | Orbit Racing | 1:53.5430 | 181.6531 | 1:54.0480 | 1:53.5430 |
| 20th | 68 | James / Gleason / Valentine / Kroczek / Zimroth | Porsche 996 GT3-RS | The Racers Group/Monster Cable | 1:53.6600 | 181.4648 | 1:54.2600 | 1:53.6600 |
| 21st | 67 | Nearn / Ehret / Matthews / Nielsen / Sauvage | Porsche 996 GT3-RS | The Racers Group/Monster Cable | 1:54.2680 | 180.4992 | 1:54.7730 | 1:54.2680 |
| 22nd | 15 | Gaylord / Kitch / Olsen / Hessert, III / *Hessert | Multimatic MDP1 Ford Focus | Essex Racing | 1:54.4860 | 180.1564 | 1:54.4860 | |
| 23rd | 73 | Peter / Montermini / Engelhorn / Quester | Ferrari 360 Modena N-GT | Red Bull BE Racing | 1:54.6290 | 179.9311 | 1:55.4910 | 1:54.6290 |
| 24th | 11 | Alexander / Alessi / *Gay / *Mediani / *Dana | Ferrari 360 Modena N-GT | JMB Racing USA | 1:54.9630 | 179.4081 | 1:55.4360 | 1:54.9630 |
| 25th | 75 | Neiman / Pechnik / Van Overbeek / Cunningham / Rockenfeller | Porsche 996 GT3-RS | Flying Lizard Motorsports | 1:55.2920 | 178.8963 | 1:55.2920 | |
| 26th | 21 | Auberlen / Jönsson / Hand / *Said / *Marks | BMW M3 E46 | Prototype Technology Group | 1:55.6450 | 178.3507 | 1:55.6450 | |
| 27th | 57 | Vance / Masarati / Stevenson / Buttermore | Porsche 996 GT3-R | Stevenson Motorsports/Auto Assets | 1:55.7640 | 178.1673 | 1:55.7640 | |
| 28th | 88 | Couceiro / Amaral / Gião / *Barbot | Porsche 996 GT3-RS | ASM Team | 1:56.0880 | 177.6700 | 1:56.0880 | |
| 29th | 56 | Burgess / Collin / van Merksteijn / Rosa / Rosa | Porsche 996 GT3-RS | Seikel Motor Sport | 1:56.1220 | 177.6185 | 1:56.1220 | |
| 30th | 24 | Bambard / Halsmer / Heinricy / Nowicki | Chevrolet Corvette C5 | Specter Werks/Sports | 1:56.3560 | 177.2612 | 1:56.3560 | |
| 31st | 30 | Lazzaro / Kelleners / Bobbi | Maserati Light GT | Risi Competizione | 1:56.8820 | | 1:56.4610 | 1:56.8820 |
| 32nd | 22 | Jönsson / Said / Hand / Marks / Auberlen | BMW M3 E46 | Prototype Technology Group | 1:56.6380 | 176.8315 | 1:56.6380 | |
| 33rd | 60 | Puleo / Dubler / Kennedy / Evans | Chevrolet Corvette | Xtreme Racing Group | 1:56.6490 | 176.8154 | | 1:56.6490 |
| 34th | 13 | Davis / Cawley / Espenlaub / Foster | Porsche 996 GT3 Cup | Foxhill Racing | 1:57.0250 | 176.2473 | | 1:57.0250 |
| 35th | 83 | Wilson / Mountain / Konig | Porsche 996 GT3-RS | Cirtek Motorsport | 1:57.0340 | 176.2344 | 1:57.0340 | |
| 36th | 97 | Orcutt / Thiel / Dobson / Jenkins | Porsche 996 GT3-R | Graham Nash Motorsport | 1:57.1140 | 176.1137 | 2:00.0710 | 1:57.1140 |
| 37th | 98 | Zitza / Riddell / Von Seelen / de Quesada / Feinstein | Porsche 996 GT3 Cup | GT Technologies | 1:57.2220 | 175.9512 | 2:05.9010 | 1:57.2220 |
| 38th | 33 | de Simone / Earle / Assentato / Longhi | Maserati Trofeo Light | Scuderia Ferrari of Washington | 1:57.3210 | 175.8031 | 1:57.3210 | |
| 39th | 93 | Drudi / Monfardini / Meneghello / Colasacco / Fonferko | Ferrari 360 Modena Challenge | Mastercar | 1:57.3850 | 175.7066 | 1:57.3850 | |
| 40th | 72 | Lewis / McGlynn / Matos / Lluch | Porsche 996 GT3 Cup | Jack Lewis Enterprises | 1:57.4370 | 175.6293 | 1:57.4370 | |
| 41st | 38 | Pobst / Lally / Littlechild / Bunting / Levitas | Porsche 996 GT3 Cup | TPC Racing | 1:57.5170 | 175.5102 | 1:57.5170 | |
| 42nd | 91 | Dumoulin / Lieb / Julien / Pootmans | Porsche 996 GT3 Cup | Doncaster Racing | 1:57.8370 | 175.0323 | 1:58.3440 | 1:57.8370 |
| 43rd | 63 | Plumb / Lewis / Wolfkill / Escalette | Porsche 996 GT3 Cup | Glenn Yee Motorsports | 1:58.7850 | 173.6353 | 1:58.7850 | |
| 44th | 14 | Friedman / Wilson / Patch / Merzon / Smith | Porsche 996 GT3 Cup | Autometrics Motorsports | 1:58.9060 | 173.4599 | 1:59.6650 | 1:58.9060 |
| 45th | 71 | Lacey / Wilkins / Nastasi / Wilkins / Wilden | Porsche 996 GT3 Cup | Doncaster Racing | 2:06.4010 | | 1:59.2800 | 2:06.4010 |
| 46th | 94 | Casadei / Labhardt / Jurasz / Michaelian | Ferrari 360 Modena N-GT | Mastercar | 1:59.8160 | 172.1419 | 1:59.8160 | |
| 47th | 41 | Nonnamaker / Nonnamaker / Menard / Menard / Nonnamaker | Porsche 996 GT3 Cup | Orison-Planet Earth Motorsports | 2:00.6350 | 170.9735 | 2:02.8680 | 2:00.6350 |
| 48th | 00 | Derment / Baron / Puddester / Bernheim | Porsche 996 GT3 Cup | Team Vision | 2:00.7270 | 170.8431 | 2:02.0110 | 2:00.7270 |
| 49th | 82 | Lynn / Henricks / Brillhart / Heath | Porsche 996 GT3 Cup | dds Racing | 2:00.8100 | 170.7256 | 2:00.8100 | |
| 50th | 17 | Kunz / Clark / Becker / Flanagan / *Webber | Porsche 996 GT3 Cup | AASCO Motorsports | 2:01.7180 | 169.4527 | 2:01.7180 | |
| 51st | 47 | Baughman / Ward / Jaeger / Del Vecchio | Porsche 996 GT3 Cup | Michael Baughman Racing | 2:01.7500 | 169.4076 | 2:01.7500 | |
| 52nd | 46 | Argetsinger / Patterson / Pew / Victor / Cioti | Chevrolet Corvette Z06 | Michael Baughman Racing | 2:02.7140 | 168.0767 | 2:02.7140 | |
| 53rd | 42 | Nonnamaker / Menard / Menard | Porsche 996 GT3 Cup | TheRaceSite.com Racing | 2:02.0690 | | 2:03.2080 | 2:02.0690 |
| 54th | 86 | Krohn / Forristall / Van Wijk / Van Der Dys / Trentini | Porsche 996 GT3 Cup | G&W Motorsports | 2:04.4260 | 165.7640 | | 2:04.4260 |
| 55th | 16 | Stanton / Murry / Sugden | Porsche 996 GT3 Cup | AASCO Motorsports | 2:05.7990 | 163.9551 | 2:05.7990 | |