| 1st | 60 | Patterson / Negri / Castroneves / Hornish, Jr. | Riley Mk XI Lexus | Michael Shank Racing | 1:43.309 | 1:44.4330 | 1:45.5140 | 1:43.3090 | 1:45.5880 |
| 2nd | 10 | Taylor / Angelelli / Gordon / Magnussen | Riley Mk XI Pontiac | SunTrust Racing | 1:43.405 | 1:43.4800 | 1:44.5380 | 1:43.4050 | 1:44.1160 |
| 3rd | 99 | Gurney / Fogarty / Vasser / *Stallings | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 1:43.475 | 1:43.4750 | 1:44.3950 | 1:44.8470 | 1:44.3500 |
| 4th | 91 | Matthews / Goossens / Johnson / Hunter-Reay | Riley Mk XI Pontiac | Lowe's Riley-Matthews Motorsports | 1:43.516 | 1:43.5160 | 1:45.1190 | 1:44.9880 | 1:45.5570 |
| 5th | 58 | Donohue / Law / Rice / Sharp / Haywood | Riley Mk XI Porsche | Red Bull/Brumos Porsche | 1:43.570 | 1:43.5840 | 1:44.0570 | 1:43.5700 | 1:45.9170 |
| 6th | 05 | Auberlen / Alhadeff / Sigal / Wendlinger | Riley Mk XI BMW | Luggage Express Team Sigalsport BMW | 1:43.609 | 1:43.6090 | 1:44.7330 | 1:44.7230 | 1:45.4420 |
| 7th | 6 | Zogaib / James / Tracy / Allmendinger | Riley Mk XI Lexus | Michael Shank Racing | 1:43.784 | 1:44.3520 | 1:44.9790 | 1:43.7840 | 1:44.9210 |
| 8th | 19 | Finlay / Valiante / McDowell / Labonte | Crawford DP03 Ford | Finlay Motorsports | 1:43.854 | 1:44.1330 | 1:45.4290 | 1:43.8540 | no time |
| 9th | 11 | Duno / Carpentier / Manning / Dalziel | Riley Mk XI Pontiac | SAMAX | 1:43.959 | 1:43.9590 | 1:44.3940 | 1:44.7930 | 1:45.8130 |
| 10th | 47 | Morgan / Morgan / Bernhard / Zacharias | Riley Mk XI Porsche | TruSpeed Motorsports | 1:44.021 | 1:44.3480 | 1:46.7960 | 1:44.0210 | 1:48.5210 |
| 11th | 23 | Bergmeister / Dumas / Long | Crawford DP03 Porsche | Ruby Tuesday Championship Racing | 1:44.205 | 1:44.2050 | 1:45.0070 | 1:44.7830 | 1:46.5760 |
| 12th | 59 | France / Haywood / Barbosa / Moreno / Donohue | Riley Mk XI Porsche | Brumos Porsche/Kendall | 1:44.233 | 1:45.6800 | 1:44.2330 | 1:46.2220 | 1:44.2530 |
| 13th | 01 | Pruett / Duran / Montoya | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 1:44.275 | 1:44.6740 | 1:44.3950 | 1:44.2750 | 1:44.8180 |
| 14th | 02 | Dixon / Wheldon / Rojas | Riley Mk XI Lexus | Target Chip Ganassi with Felix Sabates | 1:44.344 | 1:44.3440 | 1:45.0480 | 1:44.5080 | 1:45.1510 |
| 15th | 75 | Braun / Papis / Lehto | Riley Mk XI Pontiac | Krohn Racing | 1:44.394 | 1:44.5580 | 1:44.8170 | 1:44.3940 | 1:46.2490 |
| 16th | 20 | Wallace / Leitzinger / Stewart | Crawford DP03 Porsche | Howard Motorsports | 1:44.490 | 1:44.9100 | 1:46.0080 | 1:44.4900 | 1:45.5860 |
| 17th | 39 | Fittipaldi / Cheever, Jr. / Collard / Maassen | Crawford DP03 Porsche | Cheever Racing | 1:44.632 | 1:44.8900 | 1:44.9600 | 1:44.6320 | 1:45.0720 |
| 18th | 7 | Festa / Enge / Montanari / Yasukawa / Szekeres | Riley Mk XI Pontiac | SAMAX | 1:44.845 | 3:04.3710 | 1:44.8450 | 1:46.4450 | 1:46.7950 |
| 19th | 77 | Gidley / Gollin / Jourdain / Servia | Doran JE4 Ford | Feeds The Need/Doran Racing | 1:44.957 | 1:44.9570 | 1:45.5630 | 1:45.6470 | 1:46.4480 |
| 20th | 16 | Dyson / Dyson / Smith / Gavin | Crawford DP03 Porsche | Howard Motorsports | 1:45.206 | 1:52.9360 | 1:45.2060 | 1:45.2250 | 1:58.0040 |
| 21st | 76 | Krohn / Jönsson / Said | Riley Mk XI Pontiac | Krohn Racing | 1:45.345 | 1:50.4660 | 1:45.3450 | 1:48.4090 | 1:45.8240 |
| 22nd | 61 | Frisselle / Wilkins / Frisselle / Empringham | Riley Mk XI Lexus | Exchange Traded Gold AIM Autosport | 1:45.386 | 1:46.4340 | 1:45.8840 | 1:45.3860 | 1:46.8630 |
| 23rd | 00 | Carpenter / Scheckter / George / Foyt / Grégoire | Crawford DP03 Porsche | Vision Racing | 1:45.766 | 1:46.4870 | 1:46.4040 | 1:45.7660 | 1:46.9650 |
| 24th | 51 | Newton / Erdos / Brix / Cheever, Jr. | Fabcar FDSC/03 Porsche | Cheever Racing | 1:45.862 | 1:47.0110 | 1:46.9570 | 1:45.8620 | 1:52.3820 |
| 25th | 84 | Robinson / Dallenbach, Jr. / Dallenbach / Legge | Riley Mk XI Pontiac | Robinson Racing | 1:46.542 | 1:48.2730 | 1:46.5420 | 1:46.8530 | 1:47.0050 |
| 26th | 3 | Lewis / Ruhlman / Rahal / Forbes-Robinson | Riley Mk XI BMW | Southard Motorsports | 1:46.576 | 1:47.4620 | 1:46.8610 | 1:47.3740 | 1:46.5760 |
| 27th | 12 | Schramm / Baldwin / Lester / Bell / Heinricy | Riley Mk XI Pontiac | RVO Motorsports | 1:46.662 | 1:46.6620 | 1:47.1560 | 1:47.7800 | 1:48.1360 |
| 28th | 18 | Alzen / Renauer / Borcheller / Mazzacane | Fabcar FDSC/03 Porsche | VICI Racing | 1:46.776 | 1:47.6490 | 1:46.9800 | 1:46.7760 | 1:50.3860 |
| 29th | 15 | Nastasi / Tagliani / Cosmo / Limoges | Ford Mustang Cobra GT | Blackforest Motorsports | 1:51.649 | 1:53.0870 | 1:54.9020 | 1:54.7900 | 1:51.6490 |
| 30th | 81 | Johnson / Westbrook / Lietz / Huisman | Porsche 997 GT3 Cup | Synergy Racing | 1:51.800 | 1:51.8000 | 1:53.5980 | 1:52.8620 | 1:51.9220 |
| 31st | 74 | Lux / Henzler / Farnbacher / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 1:51.802 | 1:52.1990 | 1:52.5390 | 1:51.8020 | 1:53.2620 |
| 32nd | 85 | Keen / Ehret / Werner / Hardt | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.088 | 1:52.4450 | 1:52.6990 | 1:52.0880 | 1:52.4940 |
| 33rd | 70 | Haskell / Tremblay / Ham / Pobst | Mazda RX-8 | SpeedSource | 1:52.222 | 1:52.2220 | 1:54.0560 | 1:52.6540 | 1:53.9180 |
| 34th | 66 | Pumpelly / Valentine / Lally / Greenberg / Buckler | Porsche 997 GT3 Cup | TRG | 1:52.237 | 1:52.2370 | 1:54.2730 | 1:53.5750 | 1:54.8690 |
| 35th | 06 | Reese / Lewis, Jr. / O'Connell / Edwards | Pontiac GXP.R | Banner Racing | 1:52.427 | 1:52.4270 | 1:54.6360 | 1:54.2930 | 1:53.5810 |
| 36th | 69 | Assentato / Longhi / Segal / Plumb | Mazda RX-8 | SpeedSource | 1:52.452 | 1:52.4520 | 1:53.8760 | 1:53.7120 | 1:55.0240 |
| 37th | 73 | Nielsen / Martini / Quester / Peter | Porsche 997 GT3 Cup | Tafel Racing | 1:52.542 | 1:52.5420 | 1:53.9260 | 1:53.2040 | 1:53.6430 |
| 38th | 88 | Stanton / Miller / Charouz / Jackson / Pank | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.564 | 1:52.5640 | 1:53.7330 | 1:54.6990 | 1:52.8540 |
| 39th | 72 | Davis / Swartzbaugh / Müller / Liddell / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 1:52.657 | 1:52.9720 | 1:53.5070 | 1:52.6570 | 1:53.4680 |
| 40th | 17 | Lacey / Wilkins / Mowlem / Papadopoulos / Arnold | Porsche 997 GT3 Cup | Doncaster Racing | 1:52.777 | 1:52.7770 | 1:53.2510 | 1:52.8260 | 1:54.7670 |
| 41st | 22 | de Quesada / Dumoulin / Gabel / Basseng | Porsche 997 GT3 Cup | Alegra Motorsports/ Fiorano Racing | 1:52.790 | 1:52.7900 | 1:53.7640 | 1:52.9730 | 1:59.0460 |
| 42nd | 87 | Zugel / Burke / Jeannette / Eversley | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.800 | 1:52.8000 | 1:54.2680 | 1:53.7110 | 1:57.3170 |
| 43rd | 07 | Edwards / Collins / Pilgrim / O'Connell | Pontiac GXP.R | Banner Racing | 1:52.930 | 1:52.9860 | 1:54.2540 | 1:53.9440 | 1:52.9300 |
| 44th | 45 | Wilson / Lewis / Sellers / Hand | Infiniti G35 | Howard Motorsports | 1:53.127 | 2:03.7710 | 1:54.0280 | 1:56.9370 | 1:53.1270 |
| 45th | 86 | Bowman / Bell / Willsley / Price | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:53.339 | 1:53.3390 | 1:54.8540 | 1:54.2730 | 1:57.3620 |
| 46th | 28 | Baas / Feinberg / McQuiston / Safina | Porsche 997 GT3 Cup | At Speed Motorsports | 1:53.452 | 1:53.4520 | 1:54.8450 | 1:55.0180 | 1:57.9490 |
| 47th | 64 | Lowe / Pace / Van Overbeek / Kelleners | Porsche 997 GT3 Cup | TRG | 1:53.481 | 1:53.4810 | 1:54.4550 | 1:54.5550 | 1:58.5430 |
| 48th | 63 | Spencer / Spencer / Grupp / Drummond / Espenlaub | Mazda RX-8 | Team Spencer Motorsports | 1:53.882 | 1:53.8820 | 1:54.7250 | 1:54.9460 | 2:05.1520 |
| 49th | 35 | Constantine / Borkowski / Murry / Prewitt | Porsche 997 GT3 Cup | Playboy Racing/Unitech | 1:54.076 | 1:54.0760 | 1:54.6620 | 1:57.9090 | 1:56.9040 |
| 50th | 57 | Cicero / Bunting / Gue / Stevenson / Gigliotti | Chevrolet Corvette | Stevenson Motorsports | 1:54.111 | 1:54.1110 | 1:55.4330 | 1:54.8770 | no time |
| 51st | 27 | O'Connell / Speakman / Bowles / Roush / Pechnik | Porsche 996 GT3 Cup | O'Connell Racing | 1:54.170 | 1:54.1700 | 1:55.0290 | 1:55.3660 | 2:01.6760 |
| 52nd | 30 | Aschenbach / Lofton / Smith / Pavan | Pontiac GXP.R | Racers Edge Motorsports | 1:54.616 | 1:55.1710 | 1:56.4950 | 1:58.5100 | 1:54.6160 |
| 53rd | 89 | Wellon / Ellis / Rossi / Grande / Trinkler | Porsche 997 GT3 Cup | Autometrics Motorsports | 1:54.636 | 1:54.6360 | 1:55.9970 | 1:55.4630 | 1:55.6650 |
| 54th | 14 | Patch / McGehee / Allen / Hamblin / Friedman | Porsche 996 GT3 Cup | Autometrics Motorsports | 1:54.810 | 1:54.8100 | 1:56.8800 | 1:57.3870 | 1:56.7220 |
| 55th | 52 | Drudi / Rosa / Ceccato / Masselli / Montermini | Ferrari 360 Modena Challenge | Mastercar | 1:54.885 | 1:56.0920 | 1:56.6560 | 1:56.3070 | 1:54.8850 |
| 56th | 97 | Rice / Riggins / Stevenson / Trenery / Gigliotti | Chevrolet Corvette | Stevenson Motorsports | 1:55.239 | 1:55.2390 | 1:55.9690 | no time | 1:57.2790 |
| 57th | 65 | Marden / Milner / Peterson / Gomez | Porsche 997 GT3 Cup | TRG | 1:55.286 | 1:55.2860 | 1:56.2870 | 1:55.9640 | 1:58.3330 |
| 58th | 21 | Connolly / Pecorari / Workman / Mason / Kapudija | BMW M3 E46 | Matt Connolly Motorsports | 1:55.481 | 1:55.4810 | 1:57.8320 | 1:56.7420 | 1:56.3790 |
| 59th | 43 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:55.781 | 1:55.7810 | 1:57.9430 | 1:57.7210 | 1:55.9510 |
| 60th | 68 | Ballou / DeSimone II / Jaeger / Gleason | Porsche 997 GT3 Cup | TRG | 1:56.063 | 1:56.0630 | 1:57.7900 | 1:57.6360 | 1:56.4190 |
| 61st | 83 | Gaylord / Pickering / Hilton / McCrackin | Porsche 997 GT3 Cup | Synergy Racing | 1:56.450 | 1:56.4500 | 1:57.2160 | 1:57.5900 | 1:59.4880 |
| 62nd | 49 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:56.797 | no time | | 2:02.0620 | 1:56.7970 |
| 63rd | 67 | Cloet / Bourque / Solley / Harris | Porsche 997 GT3 Cup | TRG | 1:56.862 | 1:56.8620 | 1:57.5100 | 1:58.1760 | 1:56.9750 |
| 64th | 08 | Goldin / Goldin / Finger / Zitza | Mazda RX-8 | Goldin Brothers Racing | 1:57.079 | 1:57.0790 | 1:59.0710 | 2:00.6930 | 1:58.4080 |
| 65th | 42 | Auriemma / Mayes / Kaemmer / Willcox / Varsha | Porsche 996 GT3 Cup | Team Sahlen | 1:57.929 | 1:58.9920 | 1:57.9290 | 1:59.0510 | 1:58.2780 |
| 66th | 41 | Brent / Malloy / Michaelian / Michaelian / Becker | Porsche 996 GT3 Cup | Team Sahlen | 1:58.027 | 2:01.1230 | 1:58.0270 | 2:00.9140 | 1:58.1290 |
| 67th | 46 | Baughman / Collyer / Connolly / Yeakle / Del Vecchio | Chevrolet Corvette | Michael Baughman Racing | 1:58.174 | 1:58.1740 | 2:00.4640 | 2:00.4360 | 2:00.2950 |
| 68th | 82 | Kitch / Pennington / Pallis / Bawcutt | Porsche 997 GT3 Cup | Synergy Racing | 1:58.361 | no time | 1:58.3610 | 2:00.9410 | 2:00.8950 |
| 69th | 48 | Hauser / Dubler / Magner / DeFontes | Chevrolet Corvette | WTF Engineering | 1:58.864 | 1:58.8640 | 2:00.7720 | 2:03.6020 | 2:01.4930 |
| 70th | 24 | Pickett / Cotter / Montgomery / Hanson / Walker | BMW M3 E46 | Matt Connolly Motorsports | 2:00.597 | 2:01.1400 | 2:01.0710 | 2:00.5970 | 2:01.2540 |
| 71st | 29 | Puleo / Kennedy / Webb / Thompson | Nissan 350Z | Extreme Motorsports Group | 2:11.031 | no time | | 2:11.0310 | |