| 1st | 01 | Pruett / Diaz / Briscoe | Riley Mk XI Lexus | CompUSA Chip Ganassi with Felix Sabates | 1:46.928 | 1:46.9280 | 1:48.3520 | 1:49.2580 | 1:49.4370 |
| 2nd | 10 | Angelelli / Taylor / Collard | Riley Mk XI Pontiac | SunTrust Racing | 1:46.945 | 1:46.9450 | 1:47.3390 | 1:47.2600 | 1:49.1880 |
| 3rd | 66 | Papis / Bergmeister / Gavin | Riley Mk XI Pontiac | Krohn Racing/TRG | 1:47.166 | 1:47.1660 | 1:48.9960 | 1:48.6520 | 1:49.1520 |
| 4th | 02 | Johansson / Wagner / McMurray | Riley Mk XI Lexus | New Century Mtg/Chip Ganassi w/Sabates | 1:47.260 | 1:47.2600 | 1:48.8930 | 1:48.5480 | 1:51.9740 |
| 5th | 03 | Dixon / Mears / Manning | Riley Mk XI Lexus | Target Chip Ganassi with Felix Sabates | 1:47.480 | 1:47.4800 | 1:47.7610 | 1:48.1410 | 1:49.3660 |
| 6th | 20 | Wallace / Lammers / Stewart | Crawford DP03 Pontiac | CITGO - Howard - Boss Motorsports | 1:47.528 | 1:47.5280 | 1:48.2500 | 1:49.6770 | 1:47.6040 |
| 7th | 44 | Magnussen / Labonte / Labonte / Herta | Doran JE4 Pontiac | Doran Racing | 1:47.646 | 1:47.6460 | 1:48.9570 | 1:48.4590 | 1:50.3940 |
| 8th | 4 | Leitzinger / Forbes-Robinson / Johnson | Crawford DP03 Pontiac | Howard - Boss Motorsports | 1:47.877 | 1:47.8770 | 1:48.6020 | 1:48.5460 | 1:50.0630 |
| 9th | 39 | Goossens / Smith / Sharp / Matthews | Riley Mk XI Pontiac | Orbit Racing | 1:47.968 | 1:47.9680 | 1:48.9980 | 1:50.3180 | 1:51.6040 |
| 10th | 2 | Franchitti / Duno / Franchitti / Wheldon | Crawford DP03 Pontiac | CITGO - Howard - Boss Motorsports | 1:48.020 | 1:50.0380 | 1:48.0200 | 1:49.0870 | 1:50.5440 |
| 11th | 77 | Gollin / Bobbi / Theys | Doran JE4 Lexus | Doran Racing | 1:48.022 | 1:48.0220 | 1:48.9200 | 1:49.7390 | 1:50.9740 |
| 12th | 19 | Gidley / McDowell / Valiante / Bomarito | Riley Mk XI BMW | Ten Motorsports | 1:48.193 | 1:48.1930 | 1:49.3400 | 1:49.1230 | 1:50.6320 |
| 13th | 6 | Borkowski / Mears, Jr. / Connor / Dayton | Riley Mk XI Pontiac | Michael Shank Racing | 1:48.205 | 1:48.2610 | 1:49.0710 | 1:49.1030 | 1:48.2050 |
| 14th | 58 | Donohue / Law / Luhr / Maassen | Fabcar FDSC/03 Porsche | Red Bull/Brumos Racing | 1:48.405 | 1:49.3240 | 1:48.8990 | 1:51.2840 | 1:48.4050 |
| 15th | 54 | Fittipaldi / Tracy / Borcheller / Kelleners / *Barber | Doran JE4 Pontiac | Kodak - Bell Motorsports | 1:48.429 | 1:49.3660 | 1:50.0930 | 1:48.8810 | 1:48.4290 |
| 16th | 79 | da Matta / Bourdais / Newman / Brockman | Crawford DP03 Ford | Newman Racing/Silverstone Racing | 1:48.466 | 1:48.4660 | 1:48.7950 | 1:48.6740 | 1:54.5450 |
| 17th | 67 | Jönsson / Krohn / Rice / Said / Morales | Riley Mk XI Pontiac | Krohn Racing/TRG | 1:48.902 | no time | 1:48.9020 | 1:48.9620 | 1:52.4430 |
| 18th | 49 | Maxwell / Busch / Kenseth / Biffle | Multimatic MDP1 Ford Focus | Multimatic Motorsports | 1:49.458 | 1:49.4580 | 1:50.0160 | 1:50.3420 | 1:51.4690 |
| 19th | 8 | Frisselle / Erdos / Frisselle / Newton | Doran JE4 BMW | Rx.com/Synergy Racing | 1:49.647 | 1:50.3340 | 1:49.6470 | 1:49.7400 | 1:52.2040 |
| 20th | 5 | Dyson / Brix / Dyson / Gue | Crawford DP03 Ford | Essex Racing | 1:49.807 | 1:49.8070 | 1:50.0790 | 1:51.2830 | 1:50.0300 |
| 21st | 59 | France / Haywood / Bernhard / Rockenfeller / Dumas | Fabcar FDSC/03 Porsche | Brumos Racing | 1:49.881 | 2:16.8610 | 1:49.8810 | 1:53.7510 | 1:55.8090 |
| 22nd | 74 | Dallenbach, Jr. / Dallenbach / Robinson / Unser | Riley Mk XI Lexus | Robinson Racing | 1:49.959 | 1:50.6640 | 1:49.9590 | 1:51.4790 | 1:53.1980 |
| 23rd | 09 | Goad / Grégoire / Moreno / Ward | Crawford DP03 Pontiac | Spirit of Daytona Racing | 1:50.110 | 1:50.1100 | 1:51.0180 | 1:50.7850 | 1:50.8540 |
| 24th | 50 | Bucknum / Nastasi / Zogaib / Peterson / Duder | Multimatic MDP1 Ford Focus | Blackforest Motorsports | 1:50.466 | 1:50.4660 | 1:51.7780 | 1:51.9560 | 2:00.8490 |
| 25th | 9 | Zacharias / Donner / Foster / Skelton / Rosser | Doran JE4 Infiniti | Hyper Sport | 1:50.922 | 1:50.9320 | 1:50.9220 | 1:52.7230 | 1:52.6630 |
| 26th | 29 | Vargo / Vargo / Vargo / Refenning | Fabcar FDSC/03 Porsche | Brumos Racing | 1:51.611 | 1:51.9760 | 1:51.6110 | 1:52.8760 | 1:58.7430 |
| 27th | 3 | Grala / Patterson / Wahl / Kroczek / Lewis | Fabcar FDSC/03 Lexus | Cegwa Sport/Southard Motorsports | 1:52.492 | 1:55.3580 | 1:52.4920 | 1:52.8850 | no time |
| 28th | 18 | Miller / Bingham / Ivankovich / Burgess / *Rice | Chase CCE-001 Pontiac | Chase Competition Eng/CB Motorsports | 1:54.167 | 1:55.6630 | 1:54.1670 | 1:56.1670 | no time |
| 29th | 86 | Sellers / Urciuoli / Workman / Marshall | Picchio DP2 BMW | Synergy Racing | 1:55.609 | 1:59.5870 | 1:55.6090 | 1:56.4350 | 1:55.6140 |
| 30th | 71 | Henzler / Farnbacher / Ehret / Price | Porsche 996 GT3 Cup | Farnbacher Racing USA | 1:55.872 | 1:55.9580 | 1:56.8910 | 1:55.8720 | 1:57.8780 |
| 31st | 36 | Pobst / Pumpelly / Dumoulin / Levitas / Littlechild | Porsche 996 GT3 Cup | TPC Racing | 1:56.474 | 1:56.4740 | 1:57.6930 | 1:57.3210 | 1:57.9090 |
| 32nd | 65 | Lally / Bunting / Plumb / de Quesada / Buckler | Porsche 996 GT3 Cup | Auto Gallery/TRG | 1:56.567 | 1:56.5670 | 1:57.6260 | 1:57.6970 | 1:57.5140 |
| 33rd | 00 | Baird / Morris / Ambrose / Teulan | Porsche 996 GT3 Cup | Aussie Assault | 1:56.766 | 1:56.7660 | 1:57.9400 | 1:58.5010 | 1:57.6400 |
| 34th | 75 | Pechnik / Neiman / Van Overbeek / *Fogarty / *Long | Porsche 996 GT3 Cup | Flying Lizard Motorsports | 1:56.804 | 1:57.1100 | 1:56.8150 | 1:56.8040 | 2:00.8500 |
| 35th | 51 | Wendlinger / Mowlem / Vosse / Quester | Porsche 996 GT3 Cup | Red Bull Ebimotors | 1:56.816 | 1:56.8160 | 1:58.0030 | 1:58.8310 | 1:58.7140 |
| 36th | 21 | Auberlen / Hand / James / Gleason | BMW M3 E46 | Prototype Technology Group | 1:57.179 | 1:57.1790 | 1:58.3460 | 1:58.8790 | 1:59.0830 |
| 37th | 73 | Liddell / Baldwin / Stanton / Tafel / Davis | Porsche 996 GT3 Cup | Baldwin-Tafel Racing | 1:57.298 | 1:57.2980 | 1:57.3560 | 1:58.5140 | 2:01.4010 |
| 38th | 06 | Derment / Lewis / Hainer / Roush / Bernheim | Porsche 996 GT3 Cup | Bernheim Porsche Racing | 1:57.540 | 1:57.5400 | 1:58.0400 | 2:01.6450 | 2:02.5630 |
| 39th | 11 | Plumb / Gooding / Boss / Michaelian | Ferrari 360 Modena Challenge | JMB Racing USA | 1:57.818 | 1:57.8180 | 1:58.8950 | 1:59.7930 | 2:05.8470 |
| 40th | 37 | Fitzgerald / Matos / Assentato / *Longhi | Porsche 996 GT3 Cup | TPC Racing | 1:57.856 | 1:57.8560 | 1:58.8210 | 1:59.7460 | 2:08.0960 |
| 41st | 61 | Nearn / Wilkins / Lacey / Shep / Wilkins | Porsche 996 GT3 Cup | TRG East | 1:57.919 | 1:57.9190 | 1:58.1800 | 1:58.7380 | 2:00.2640 |
| 42nd | 93 | Cosmo / Stewart / *Stewart / *Stewart / *Gilbert | Porsche 996 GT3 Cup | TPC Racing | 1:57.946 | 1:57.9460 | 2:00.5420 | 1:59.5130 | 2:04.7770 |
| 43rd | 22 | Marks / Milner / Collins / Valentine | BMW M3 E46 | Prototype Technology Group | 1:57.980 | 1:57.9800 | 1:59.4640 | 2:00.5610 | 2:01.8950 |
| 44th | 41 | Nonnamaker / Nonnamaker / Nonnamaker / Jakes | Porsche 996 GT3 Cup | Team Sahlen | 1:58.120 | 1:58.1200 | 1:59.0680 | 2:00.2960 | 2:01.3630 |
| 45th | 14 | Keen / Friedman / Bacon / Johnson | Porsche 996 GT3 Cup | Autometrics Motorsports | 1:58.305 | 1:58.5210 | 1:58.8070 | 2:01.6060 | 1:58.3050 |
| 46th | 64 | Couceiro / Policastro, Jr. / Sauvage / Amaral / Policastro | Porsche 996 GT3 Cup | Auto Gallery/TRG | 1:58.313 | 1:58.3130 | 1:58.8840 | 1:58.7140 | 2:02.0440 |
| 47th | 52 | Drudi / Rosa / Monzón / de Villota | Ferrari 360 Modena Challenge | Mastercar | 1:58.516 | 1:58.5160 | 2:00.5150 | 2:00.7010 | 2:00.5300 |
| 48th | 16 | Bentley / Braun / Carrio / Coleman / Buckler | Porsche 996 GT3 Cup | TRG | 1:58.580 | 1:58.5800 | 1:59.2000 | 1:59.0620 | 2:04.1290 |
| 49th | 53 | Ragazzi / Diez de Villarroel / Chiminelli / Bertuzzi | Ferrari 360 Modena Challenge | Mastercar | 1:59.160 | 1:59.1600 | 2:01.0580 | 2:02.6270 | 2:02.1560 |
| 50th | 23 | Espenlaub / Szekeres / Hanson / Villamil / Del Vecchio | Pontiac GTO | Horizon Motorsports LLC | 1:59.462 | 1:59.4620 | 2:01.7750 | 2:02.5820 | no time |
| 51st | 04 | Sigal / Konôpka / Hanson / Konstant / Wilton | Porsche 996 GT3 Cup | Sigalsport | 1:59.561 | 1:59.5610 | 2:00.2710 | 2:01.2610 | 2:08.6310 |
| 52nd | 81 | Gaylord / Van Wijk / Murry / Emory | Porsche 996 GT3 Cup | Team Seattle/Synergy Racing | 1:59.852 | 1:59.8520 | 2:00.1360 | 2:00.2200 | 2:04.4970 |
| 53rd | 43 | Zitza / Blum / Lux / Allen / Gonzalez, Jr. | Porsche 996 GT3 Cup | Team Sahlen | 2:00.221 | 2:00.2210 | 2:00.2700 | 2:22.4080 | 2:00.2510 |
| 54th | 63 | Master / Flanagan / Sluszny / Clark | Porsche 996 GT3 Cup | Auto Gallery/TRG | 2:00.258 | 2:00.2580 | 2:00.7290 | 2:01.2690 | 2:06.1010 |
| 55th | 62 | Inoue / Fujita / Wada / Hirakawa / Takahashi | Porsche 996 GT3 Cup | Auto Gallery/TRG | 2:00.901 | 2:00.9240 | 2:00.9010 | 2:03.5300 | 2:05.0650 |
| 56th | 42 | Zitza / Nonnamaker / Nonnamaker / Jakes / Gonzalez, Jr. / Allen / Blum / Lux | Porsche 996 GT3 Cup | Team Sahlen | 2:01.687 | | | 2:03.1270 | 2:01.6870 |
| 57th | 85 | Phipps / Hardage / Nahir / Mayer / Trentini | Porsche 996 GT3 Cup | Condor Motorsports | 2:02.152 | 2:03.4260 | 2:02.1520 | 2:03.7690 | 2:02.3970 |
| 58th | 46 | Baughman / Yeakle | Chevrolet Corvette | Michael Baughman Racing | 2:03.169 | 2:04.2330 | 2:06.2430 | 2:05.1740 | 2:03.1690 |
| 59th | 80 | Kitch / Gagne / Pickering / Pallis | Porsche 996 GT3 Cup | Team Seattle/Synergy Racing | 2:03.370 | 2:03.3700 | 2:04.5680 | 2:05.8310 | 2:07.1320 |
| 60th | 78 | Bonham / Phillips / Orwicz / Williams / Fairchild | Porsche 996 GT3 Cup | Farnbacher Racing USA | 2:03.385 | 2:03.7190 | 2:03.3850 | 2:04.3970 | no time |
| 61st | 55 | Arnold / Thiel / Stevenson / MacAlpine / Turner | Chevrolet Corvette | ASC Motorsports | 2:04.629 | 2:11.7330 | 2:04.6610 | 2:04.6290 | 2:06.7810 |
| 62nd | 08 | Goldin / Finlay / Goldin / Shuster | Mazda RX-8 | Goldin Brothers Racing | 2:04.747 | 2:07.1880 | 2:04.7470 | 2:07.3880 | 2:05.3810 |
| 63rd | 48 | Seiler / Hauser / Puleo / Dubler | Chevrolet Corvette | Xtreme Racing Group | 2:05.279 | no time | 2:06.3960 | 2:09.6190 | 2:05.2790 |