| 1st | 99 | Gurney / Fogarty | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 1:43.610 | 1:43.8780 | 1:43.6100 | 1:44.8550 | 1:44.0310 | 1:44.3280 |
| 2nd | 10 | Taylor / Angelelli / Cochet | Riley Mk XI Pontiac | SunTrust Racing | 1:43.899 | 1:44.5290 | 1:43.8990 | 1:45.5780 | 1:44.5120 | 1:46.2620 |
| 3rd | 01 | Pruett / Rojas / Festa | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 1:44.305 | 1:44.3410 | 1:44.3050 | 1:48.0490 | 1:44.4830 | 1:45.9140 |
| 4th | 23 | Bergmeister / Long | Crawford DP03 Porsche | Alex Job Racing | 1:44.436 | 1:44.4360 | 1:44.6190 | 1:45.7790 | 1:44.5650 | 1:44.8280 |
| 5th | 39 | Fittipaldi / Brix / Garcia | Fabcar FDSC/03 Porsche | Cheever Racing | 1:44.542 | no time | 1:44.7620 | 1:46.5150 | 1:44.5420 | 1:46.0660 |
| 6th | 75 | Braun / Papis / Jönsson | Riley Mk XI Pontiac | Krohn Racing | 1:44.569 | 1:44.5690 | 1:44.5750 | 1:50.6070 | 1:44.6260 | 1:46.4270 |
| 7th | 19 | Finlay / Valiante / Festa | Riley Mk XI Lexus | Chip Ganassi with Felix Sabates | 1:44.681 | 1:45.3510 | 1:44.6810 | 1:45.7860 | 1:45.4380 | 1:45.4030 |
| 8th | 58 | Donohue / Law | Riley Mk XI Porsche | Red Bull/Brumos Porsche | 1:44.721 | 1:45.8430 | 1:45.2870 | 1:44.8470 | 1:44.7210 | 1:45.4120 |
| 9th | 76 | Braun / Krohn / Jönsson | Riley Mk XI Pontiac | Krohn Racing | 1:44.874 | 1:44.8740 | 1:44.9500 | 1:48.8070 | 1:45.9010 | 1:45.4780 |
| 10th | 59 | France / Haywood / Barbosa | Riley Mk XI Porsche | Brumos Porsche/Kendall | 1:44.933 | no time | 1:44.9330 | 1:48.7240 | 1:47.3430 | 1:46.8950 |
| 11th | 77 | Gidley / Cosmo | Doran JE4 Ford | Feeds The Need/Doran Racing | 1:45.008 | 1:59.0920 | 1:45.4720 | 1:45.0080 | 1:50.4630 | 1:45.6340 |
| 12th | 91 | Matthews / Goossens / Hunter-Reay | Riley Mk XI Pontiac | Riley-Matthews Motorsports | 1:45.011 | 1:48.3990 | 1:45.0110 | 1:46.1500 | 1:46.1900 | 1:46.3780 |
| 13th | 05 | Auberlen / Alhadeff / Hand | Riley Mk XI BMW | Luggage Express Team Sigalsport BMW | 1:45.032 | 1:45.1200 | 1:45.0320 | 1:46.6760 | 1:45.1450 | 1:45.1170 |
| 14th | 60 | Patterson / Negri | Riley Mk XI Lexus | Michael Shank Racing | 1:45.097 | 1:45.2360 | 1:45.0970 | 1:46.3200 | 1:45.2560 | 1:45.2550 |
| 15th | 11 | Carpentier / Bessette / Enge | Riley Mk XI Pontiac | SAMAX Motorsport | 1:45.183 | 1:45.1830 | 1:45.4560 | 1:47.3270 | 1:45.4810 | 1:46.0660 |
| 16th | 6 | Pew / James | Riley Mk XI Lexus | Michael Shank Racing | 1:45.274 | 1:45.8740 | 1:45.3910 | 1:48.0840 | 1:45.2740 | 1:46.3740 |
| 17th | 61 | Frisselle / Wilkins / Frisselle | Riley Mk XI Lexus | AIM Autosport | 1:45.463 | 1:45.4900 | 1:45.4630 | 1:47.4080 | 1:45.5540 | 1:46.6260 |
| 18th | 16 | Dyson / Dyson / Leitzinger | Crawford DP03 Porsche | Howard Motorsports | 1:46.111 | 1:51.7450 | 1:46.2660 | 1:48.5640 | 1:46.1110 | 1:46.8320 |
| 19th | 3 | Lewis / Ruhlman | Riley Mk XI Lexus | Southard Motorsports | 1:46.154 | 1:47.2870 | 1:46.3100 | 1:47.2050 | 1:46.1540 | 1:48.2470 |
| 20th | 12 | Schramm / Bell | Riley Mk XI Pontiac | RVO Motorsports | 1:48.190 | 1:48.7790 | 1:48.1900 | 1:53.3770 | 1:50.0090 | 1:48.8660 |
| 21st | 07 | Edwards / Collins / Pilgrim | Pontiac GXP.R | Banner Racing | 1:53.823 | 1:53.8230 | 1:53.8730 | 1:54.6670 | 1:54.6120 | 1:54.6830 |
| 22nd | 74 | Lux / Henzler | Porsche 997 GT3 Cup | Tafel Racing | 1:53.935 | 1:53.9350 | 1:53.9420 | 1:55.1600 | 1:54.8640 | 1:54.6230 |
| 23rd | 87 | Miller / Werner / Stanton | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:53.984 | 1:54.3840 | 1:54.1160 | 1:56.1340 | 1:53.9840 | 1:55.4690 |
| 24th | 66 | Lally / Pumpelly / Valentine | Porsche 997 GT3 Cup | TRG | 1:54.208 | 1:59.3650 | 1:54.2080 | 1:54.3570 | 1:54.8030 | 1:55.2350 |
| 25th | 72 | Swartzbaugh / Liddell / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 1:54.245 | 1:56.5900 | 1:55.1290 | 1:57.0530 | 1:54.2450 | 1:56.0070 |
| 26th | 30 | Staveley / Aschenbach / Pavan | Pontiac GXP.R | Racers Edge Motorsports | 1:54.471 | 1:54.6720 | 1:54.4710 | 2:03.6330 | 1:54.9920 | 1:55.7750 |
| 27th | 06 | Reese / Pilgrim / Lewis, Jr. | Pontiac GXP.R | Banner Racing | 1:54.685 | 1:54.8760 | 1:54.6850 | 1:57.1770 | 1:55.3680 | 1:56.0290 |
| 28th | 85 | Farnbacher / Keen / Stanton | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:54.826 | 1:55.4810 | 1:54.8260 | 1:56.2600 | 1:55.2280 | 1:54.8900 |
| 29th | 69 | Assentato / Snyder / Segal / *Longhi | Mazda RX-8 | SpeedSource | 1:54.853 | 1:54.8530 | 1:54.8870 | 1:55.7310 | 1:55.4180 | 1:56.1340 |
| 30th | 70 | Haskell / Tremblay / Ham | Mazda RX-8 | SpeedSource | 1:54.935 | 1:54.9730 | 1:54.9350 | 1:55.3850 | 1:54.9430 | 1:56.1750 |
| 31st | 65 | Smith / DiLeo / Sellers | Porsche 997 GT3 Cup | TRG | 1:55.089 | 1:56.2250 | 1:55.0890 | 1:56.7020 | 1:55.4710 | 1:55.7010 |
| 32nd | 81 | Johnson / Westbrook | Porsche 997 GT3 Cup | Synergy Racing | 1:55.217 | 1:56.1230 | 1:55.2170 | 1:58.1960 | 1:56.3130 | 1:55.9900 |
| 33rd | 22 | Dumoulin / Gabel | Porsche 997 GT3 Cup | Alegra Motorsports/Fiorano Racing | 1:55.257 | no time | | | 1:55.2570 | no time |
| 34th | 57 | Bunting / Cicero | Chevrolet Corvette | Stevenson Motorsports | 1:55.493 | 1:56.0960 | 1:55.4930 | 1:56.8370 | 1:56.2720 | 1:57.3820 |
| 35th | 26 | de Quesada / Dumoulin / Gabel | Porsche 997 GT3 Cup | Alegra Motorsports/Fiorano Racing | 1:55.679 | 1:56.8390 | 1:55.6790 | 1:56.3840 | | no time |
| 36th | 21 | Connolly / Prewitt / Price | Pontiac GTO.R | Matt Connolly Motorsports | 1:55.752 | 1:57.2530 | 1:55.7520 | 1:56.0840 | 1:58.3770 | 1:58.1790 |
| 37th | 43 | Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:55.996 | 1:58.7980 | 1:56.5820 | 1:57.4910 | 1:57.1730 | 1:55.9960 |
| 38th | 28 | Baas / White / Miller | Porsche 997 GT3 Cup | At Speed Motorsports | 1:56.059 | 1:56.9250 | 1:56.0590 | 1:56.3110 | 1:57.4100 | 1:57.6780 |
| 39th | 17 | Wilkins / Papadopoulos / Julien | Porsche 997 GT3 Cup | Doncaster Racing | 1:56.241 | 1:57.6530 | 1:56.2410 | 2:04.3590 | 1:58.5180 | 1:59.3830 |
| 40th | 64 | Lowe / Pace | Porsche 997 GT3 Cup | TRG | 1:56.455 | 1:58.9570 | 1:56.6860 | 1:59.9060 | 1:56.4550 | 1:58.3430 |
| 41st | 14 | Friedman / Skea / Smith | Porsche 997 GT3 Cup | Autometrics Motorsports | 1:57.230 | 1:58.4650 | 1:57.2300 | 1:58.5000 | 1:58.7690 | 1:59.7560 |
| 42nd | 97 | Riggins / Rice / Gue | Chevrolet Corvette | Stevenson Motorsports | 1:57.291 | 1:57.4260 | 1:57.2910 | 1:59.5270 | 1:59.0200 | 1:57.6800 |
| 43rd | 42 | Sahlen / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:57.437 | 1:59.6800 | 1:58.3440 | 1:59.2840 | 1:57.4370 | 1:59.4060 |
| 44th | 27 | O'Connell / Speakman | Porsche 997 GT3 Cup | O'Connell Racing | 1:58.112 | 1:58.4900 | 1:58.1120 | 2:17.7560 | 2:00.5080 | 2:00.1940 |
| 45th | 67 | Potter / Marden / Milner | Porsche 997 GT3 Cup | TRG | 1:58.535 | 2:00.3400 | 1:58.5350 | 1:59.0930 | 2:01.9490 | 2:00.9280 |
| 46th | 24 | Michaelian / Workman / George, Jr. | BMW M3 | Matt Connolly Motorsports | 2:41.194 | no time | 2:41.1940 | no time | | no time |