| 1st | 99 | Gurney / Fogarty / Vasser | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 2:39.459 | 2:40.8440 | 2:42.2820 | 2:44.2320 | 2:39.4590 | 2:43.0460 |
| 2nd | 01 | Pruett / Rojas / Duran | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 2:40.584 | 2:40.5840 | 2:41.7140 | 2:42.8690 | 2:41.0360 | 2:41.8920 |
| 3rd | 91 | Matthews / Goossens / Hunter-Reay | Riley Mk XI Pontiac | Riley-Matthews Motorsports | 2:40.760 | 2:45.7850 | 2:42.0690 | 2:42.8590 | 2:40.7600 | 2:42.1610 |
| 4th | 05 | Auberlen / Alhadeff / Hand | Riley Mk XI BMW | Luggage Express Team Sigalsport BMW | 2:40.976 | 2:40.9760 | 2:42.4010 | 2:42.6270 | 2:42.0680 | 2:42.0590 |
| 5th | 58 | Donohue / Law / Rice | Riley Mk XI Porsche | Red Bull/Brumos Porsche | 2:41.269 | 2:41.2690 | 2:41.6450 | 2:43.8080 | 2:41.6670 | 2:42.3480 |
| 6th | 23 | Bergmeister / Rockenfeller / Long | Crawford DP03 Porsche | Alex Job Racing | 2:41.350 | 2:41.3500 | 2:42.5250 | 4:42.8330 | 2:43.2060 | 2:43.3090 |
| 7th | 77 | Gidley / Jaeger | Doran JE4 Ford | Feeds The Need/Doran Racing | 2:41.394 | 2:41.3940 | 2:42.2760 | 2:42.7810 | 2:41.9450 | 2:43.9880 |
| 8th | 39 | Fittipaldi / Brix / Antinucci | Fabcar FDSC/03 Pontiac | Cheever Racing - Pontiac | 2:41.405 | 2:41.4060 | 2:41.4050 | 2:44.9220 | 2:42.5820 | 2:42.4020 |
| 9th | 60 | Patterson / Negri / Wilson | Riley Mk XI Lexus | Michael Shank Racing | 2:41.432 | 2:41.7580 | 2:42.3600 | 2:46.9570 | 2:41.4320 | 2:42.9290 |
| 10th | 10 | Taylor / Angelelli / Magnussen | Riley Mk XI Pontiac | SunTrust Racing | 2:41.433 | 2:41.4330 | 2:42.4590 | 2:42.2460 | 2:41.6000 | 2:42.5870 |
| 11th | 75 | Jönsson / Braun | Riley Mk XI Pontiac | Krohn Racing | 2:41.623 | 2:41.7880 | 2:42.4410 | 2:45.2520 | 2:41.6230 | 2:42.0540 |
| 12th | 61 | Frisselle / Wilkins / Frisselle | Riley Mk XI Lexus | AIM Autosport | 2:41.660 | 2:41.6600 | 2:42.3110 | 2:44.2480 | 2:41.9220 | 2:42.8260 |
| 13th | 11 | Szekeres / Dalziel / Enge | Riley Mk XI Pontiac | SAMAX | 2:42.307 | 2:45.7760 | 2:42.7180 | 2:42.8790 | 2:42.3070 | 2:43.0750 |
| 14th | 19 | Cameron / Valiante | Riley Mk XI Lexus | Chip Ganassi with Felix Sabates | 2:42.373 | 2:42.3730 | 2:43.1880 | 2:43.4090 | 2:42.9720 | 2:43.2610 |
| 15th | 76 | Krohn / Papis | Riley Mk XI Pontiac | Krohn Racing | 2:42.812 | 2:45.3890 | 2:42.8120 | 2:44.5750 | 2:43.1170 | 2:47.1770 |
| 16th | 6 | Pew / James / Zogaib | Riley Mk XI Lexus | Michael Shank Racing | 2:42.887 | 2:42.8870 | 2:43.4730 | 2:43.3810 | 2:43.3150 | 2:43.7190 |
| 17th | 59 | France / Haywood / Borcheller | Riley Mk XI Porsche | Brumos Porsche/Kendall | 2:43.316 | 2:44.9550 | 2:43.3160 | 2:49.5680 | 2:43.9640 | 2:45.9200 |
| 18th | 3 | Lewis / Lux | Riley Mk XI Lexus | Southard Motorsports | 2:43.396 | 2:43.3960 | 2:43.4380 | 2:50.1860 | 2:45.3410 | 2:44.8880 |
| 19th | 12 | Schramm / Bell / Lester | Riley Mk XI Pontiac | RVO Motorsports | 2:44.868 | 2:45.8380 | 2:44.8680 | 2:53.8580 | 2:48.5130 | 2:47.2630 |
| 20th | 09 | Camirand / Goad / Cosmo | Fabcar FDSC/03 Porsche | Spirit of Daytona Racing | 2:45.247 | 2:45.6720 | 2:45.4580 | 2:50.2720 | 2:45.2470 | 2:47.4160 |
| 21st | 31 | Connolly / Ingham / Ballou / Rossberg | Chase CCE-001 Pontiac | Matt Connolly Motorsports | 2:47.963 | 2:48.2210 | | 2:47.9630 | 2:50.5610 | 2:50.3210 |
| 22nd | 07 | Edwards / Collins / Pilgrim | Pontiac GXP.R | Banner Racing | 2:54.165 | 2:54.1650 | 2:55.0870 | 2:56.8890 | 2:54.5570 | 2:55.8590 |
| 23rd | 87 | Miller / Werner / Henzler | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 2:54.822 | 2:56.5620 | 2:56.2100 | 2:54.9590 | 2:54.8220 | 2:57.4060 |
| 24th | 70 | Haskell / Tremblay / Ham | Mazda RX-8 | SpeedSource | 2:55.161 | 2:55.1610 | | 2:56.8560 | 2:56.2280 | 2:57.5300 |
| 25th | 85 | Farnbacher / Keen / Baas | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 2:55.466 | 2:55.4660 | 2:55.7510 | 2:58.2470 | 2:55.8370 | 2:57.4760 |
| 26th | 81 | Johnson / Davis / Wagner | Porsche 997 GT3 Cup | Synergy Racing | 2:55.599 | 3:00.1130 | 2:58.3360 | 2:59.3840 | 2:55.5990 | 2:58.1150 |
| 27th | 03 | Holtom / Curran / Wilden | Chevrolet Corvette | Georgian Bay Motorsports | 2:56.409 | 2:56.7510 | | 2:59.8980 | 2:56.5260 | 2:56.4090 |
| 28th | 06 | Reese / Lewis, Jr. / O'Connell | Pontiac GXP.R | Banner Racing | 2:56.532 | 2:56.8930 | 2:57.2830 | 3:00.9010 | 2:56.5810 | 2:56.5320 |
| 29th | 69 | Haskell / Longhi / Armengol / *Assentato / *Segal | Mazda RX-8 | SpeedSource | 2:56.558 | 2:56.5580 | 2:57.4580 | 3:00.9820 | 2:57.0140 | 2:58.5780 |
| 30th | 67 | Mayes / Wahl / Ludwig | Porsche 997 GT3 Cup | TRG | 2:57.115 | 3:01.4230 | 3:00.3490 | 3:07.6680 | 2:57.1150 | 3:02.9180 |
| 31st | 22 | de Quesada / Dumoulin / Gabel / Stanton | Porsche 997 GT3 Cup | Alegra Motorsports/Fiorano Racing | 2:57.192 | 2:59.8190 | 2:58.7280 | 3:02.3740 | 2:57.1920 | 2:58.4620 |
| 32nd | 66 | Lally / Pumpelly / Valentine | Porsche 997 GT3 Cup | TRG | 2:57.368 | 3:04.0030 | 2:58.0200 | 2:57.6530 | 3:03.7630 | 2:57.3680 |
| 33rd | 30 | Staveley / Nearn / Dobson / Riley | Pontiac GXP.R | Racers Edge Motorsports | 2:57.463 | 2:58.8140 | 2:57.7260 | 2:57.4630 | 2:57.9560 | 3:00.9110 |
| 34th | 40 | Foster / Espenlaub / Dempsey | Mazda RX-8 | Hyper Sport | 2:57.519 | 2:57.5190 | 2:58.7230 | 5:29.9280 | 2:58.6000 | 3:02.2650 |
| 35th | 56 | Beachman / Fitzgerald / McClure | Chevrolet Corvette | Beachman Racing | 2:57.582 | 2:57.5820 | 2:58.8610 | 3:04.1150 | 2:59.4430 | 2:59.9080 |
| 36th | 65 | Smith / DiLeo / Sellers | Porsche 997 GT3 Cup | TRG | 2:57.666 | 2:59.4490 | 2:58.1780 | 3:07.1550 | 2:57.6660 | 3:01.6170 |
| 37th | 17 | Wilkins / Lacey / Papadopoulos | Porsche 997 GT3 Cup | Doncaster Racing | 2:57.989 | 2:58.3780 | 2:57.9890 | 3:00.4520 | 2:59.3600 | 3:03.2020 |
| 38th | 43 | Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 2:57.996 | 3:00.4890 | 3:01.0230 | 2:57.9960 | 2:58.1770 | 2:58.9060 |
| 39th | 42 | Sahlen / Nonnamaker | Chevrolet Corvette | Team Sahlen | 2:58.252 | 2:58.2520 | 3:02.2390 | 3:17.0130 | 2:58.9860 | 3:00.3150 |
| 40th | 57 | Bunting / Cicero / Gue | Chevrolet Corvette | Stevenson Motorsports | 2:58.297 | 2:58.2970 | 2:59.2290 | 3:07.5240 | 3:01.2730 | 3:01.0660 |
| 41st | 62 | Pruitt / Aguas / Jeannette / Burke | Ferrari F430 Challenge | Corsa Motorsports | 2:58.752 | 2:58.7520 | 2:59.2140 | 2:59.4400 | 2:59.5850 | 3:11.4550 |
| 42nd | 27 | O'Connell / Speakman / Roush | Porsche 997 GT3 Cup | O'Connell Racing | 2:58.819 | 3:06.7960 | 2:58.8190 | 3:07.4300 | 3:00.4030 | 3:04.6930 |
| 43rd | 26 | de Quesada / Dumoulin / Wilson | Porsche 997 GT3 Cup | Alegra Motorsports/Fiorano Racing | 2:58.985 | no time | 2:58.9850 | 3:01.2540 | 3:00.0670 | 2:59.9600 |
| 44th | 21 | Tallman / Kozarov / Rossberg | Pontiac GTO.R | Matt Connolly Motorsports | 3:00.268 | no time | 3:00.6130 | 3:01.1670 | 3:00.2680 | 3:03.2020 |
| 45th | 64 | Lowe / Pace / Potter | Porsche 997 GT3 Cup | TRG | 3:00.914 | 3:04.4980 | 3:00.9140 | 3:12.8070 | 3:02.2370 | 3:02.8020 |
| 46th | 33 | Constantine / Borkowski / Murry | Nissan 350Z | Playboy Racing/Unitech | 3:02.518 | | | | 3:02.5180 | |
| 47th | 36 | DiMeo / Doane / St. Amour | Pontiac GTO | Competition Marketing Motorsports | 3:05.544 | 3:08.3840 | 3:05.5440 | no time | 3:08.1780 | 3:09.4960 |
| 48th | 35 | Constantine / Borkowski / Murry | Nissan 350Z | Playboy Racing/Unitech | 4:18.713 | | | | 4:18.7130 | |