| 1st | 99 | Gurney / Fogarty / Vasser / *Stallings | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 1:43.4750 | 199.3269 | 1:43.4750 | |
| 2nd | 10 | Taylor / Angelelli / Gordon / Magnussen | Riley Mk XI Pontiac | SunTrust Racing | 1:43.4800 | 199.3172 | 1:43.4800 | |
| 3rd | 91 | Matthews / Goossens / Johnson / Hunter-Reay | Riley Mk XI Pontiac | Lowe's Riley-Matthews Motorsports | 1:43.5160 | 199.2480 | 1:43.5160 | |
| 4th | 58 | Donohue / Law / Rice / Sharp / Haywood | Riley Mk XI Porsche | Red Bull/Brumos Porsche | 1:43.5840 | 199.1177 | 1:43.5840 | |
| 5th | 05 | Auberlen / Alhadeff / Sigal / Wendlinger | Riley Mk XI BMW | Luggage Express Team Sigalsport BMW | 1:43.6090 | 199.0694 | 1:44.0110 | 1:43.6090 |
| 6th | 11 | Duno / Carpentier / Manning / Dalziel | Riley Mk XI Pontiac | SAMAX | 1:43.9590 | 198.3983 | 1:43.9590 | |
| 7th | 19 | Finlay / Valiante / McDowell / Labonte | Crawford DP03 Ford | Finlay Motorsports | 1:44.1330 | 198.0668 | 1:44.1330 | |
| 8th | 23 | Bergmeister / Dumas / Long | Crawford DP03 Porsche | Ruby Tuesday Championship Racing | 1:44.2050 | 197.9300 | 1:44.2050 | |
| 9th | 02 | Dixon / Wheldon / Rojas | Riley Mk XI Lexus | Target Chip Ganassi with Felix Sabates | 1:44.3440 | 197.6677 | 1:44.3440 | |
| 10th | 47 | Morgan / Morgan / Bernhard / Zacharias | Riley Mk XI Porsche | TruSpeed Motorsports | 1:44.3480 | 197.6596 | 1:44.3480 | |
| 11th | 6 | Zogaib / James / Tracy / Allmendinger | Riley Mk XI Lexus | Michael Shank Racing | 1:44.3520 | 197.6516 | 1:44.3520 | |
| 12th | 60 | Patterson / Negri / Castroneves / Hornish, Jr. | Riley Mk XI Lexus | Michael Shank Racing | 1:44.4330 | 197.4987 | no time | 1:44.4330 |
| 13th | 75 | Braun / Papis / Lehto | Riley Mk XI Pontiac | Krohn Racing | 1:44.5580 | 197.2621 | 1:44.5580 | |
| 14th | 01 | Pruett / Duran / Montoya | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 1:44.6740 | 197.0432 | 1:44.6740 | |
| 15th | 39 | Fittipaldi / Cheever, Jr. / Collard / Maassen | Crawford DP03 Porsche | Cheever Racing | 1:44.8900 | 196.6377 | 1:44.8900 | |
| 16th | 20 | Wallace / Leitzinger / Stewart | Crawford DP03 Porsche | Howard Motorsports | 1:44.9100 | 196.6007 | 1:44.9100 | |
| 17th | 77 | Gidley / Gollin / Jourdain / Servia | Doran JE4 Ford | Feeds The Need/Doran Racing | 1:44.9570 | 196.5122 | 1:44.9570 | |
| 18th | 59 | France / Haywood / Barbosa / Moreno / Donohue | Riley Mk XI Porsche | Brumos Porsche/Kendall | 1:45.6800 | 195.1684 | 1:45.6800 | |
| 19th | 61 | Frisselle / Wilkins / Frisselle / Empringham | Riley Mk XI Lexus | Exchange Traded Gold AIM Autosport | 1:46.4340 | 193.7859 | 1:46.4340 | |
| 20th | 00 | Carpenter / Scheckter / George / Foyt / Grégoire | Crawford DP03 Porsche | Vision Racing | 1:46.4870 | 193.6894 | 1:46.4870 | |
| 21st | 12 | Schramm / Baldwin / Lester / Bell / Heinricy | Riley Mk XI Pontiac | RVO Motorsports | 1:46.6620 | 193.3707 | 1:47.8460 | 1:46.6620 |
| 22nd | 51 | Newton / Erdos / Brix / Cheever, Jr. | Fabcar FDSC/03 Porsche | Cheever Racing | 1:47.0110 | 192.7399 | 1:47.0110 | |
| 23rd | 3 | Lewis / Ruhlman / Rahal / Forbes-Robinson | Riley Mk XI BMW | Southard Motorsports | 1:47.4620 | 191.9320 | 3:13.0020 | 1:47.4620 |
| 24th | 18 | Alzen / Renauer / Borcheller / Mazzacane | Fabcar FDSC/03 Porsche | VICI Racing | 1:47.6490 | 191.5988 | 1:47.6490 | |
| 25th | 84 | Robinson / Dallenbach, Jr. / Dallenbach / Legge | Riley Mk XI Pontiac | Robinson Racing | 1:48.2730 | 190.4932 | 1:52.9400 | 1:48.2730 |
| 26th | 76 | Krohn / Jönsson / Said | Riley Mk XI Pontiac | Krohn Racing | 1:50.4660 | 186.7129 | 1:50.4660 | no time |
| 27th | 81 | Johnson / Westbrook / Lietz / Huisman | Porsche 997 GT3 Cup | Synergy Racing | 1:51.8000 | 184.4839 | 1:51.8000 | |
| 28th | 74 | Lux / Henzler / Farnbacher / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 1:52.1990 | 183.8289 | 1:52.1990 | |
| 29th | 70 | Haskell / Tremblay / Ham / Pobst | Mazda RX-8 | SpeedSource | 1:52.2220 | 183.7903 | 1:52.2220 | |
| 30th | 66 | Pumpelly / Valentine / Lally / Greenberg / Buckler | Porsche 997 GT3 Cup | TRG | 1:52.2370 | 183.7662 | 1:52.2370 | |
| 31st | 06 | Reese / Lewis, Jr. / O'Connell / Edwards | Pontiac GXP.R | Banner Racing | 1:52.4270 | 183.4556 | 1:52.4270 | |
| 32nd | 85 | Keen / Ehret / Werner / Hardt | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.4450 | 183.4266 | 1:52.4450 | |
| 33rd | 69 | Assentato / Longhi / Segal / Plumb | Mazda RX-8 | SpeedSource | 1:52.4520 | 183.4153 | 1:52.4520 | |
| 34th | 73 | Nielsen / Martini / Quester / Peter | Porsche 997 GT3 Cup | Tafel Racing | 1:52.5420 | 183.2673 | 1:52.5420 | |
| 35th | 88 | Stanton / Miller / Charouz / Jackson / Pank | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.5640 | 183.2319 | 1:52.5640 | |
| 36th | 17 | Lacey / Wilkins / Mowlem / Papadopoulos / Arnold | Porsche 997 GT3 Cup | Doncaster Racing | 1:52.7770 | 182.8858 | 1:52.7770 | |
| 37th | 22 | de Quesada / Dumoulin / Gabel / Basseng | Porsche 997 GT3 Cup | Alegra Motorsports/ Fiorano Racing | 1:52.7900 | 182.8649 | 1:52.7900 | |
| 38th | 87 | Zugel / Burke / Jeannette / Eversley | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.8000 | 182.8488 | 1:52.8000 | |
| 39th | 16 | Dyson / Dyson / Smith / Gavin | Crawford DP03 Porsche | Howard Motorsports | 1:52.9360 | 182.6284 | 1:52.9360 | no time |
| 40th | 72 | Davis / Swartzbaugh / Müller / Liddell / Tafel | Porsche 997 GT3 Cup | Tafel Racing | 1:52.9720 | 182.5704 | 1:52.9720 | |
| 41st | 07 | Edwards / Collins / Pilgrim / O'Connell | Pontiac GXP.R | Banner Racing | 1:52.9860 | 182.5479 | 1:52.9860 | no time |
| 42nd | 15 | Nastasi / Tagliani / Cosmo / Limoges | Ford Mustang Cobra GT | Blackforest Motorsports | 1:53.0870 | 182.3853 | 1:54.2300 | 1:53.0870 |
| 43rd | 86 | Bowman / Bell / Willsley / Price | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:53.3390 | 181.9798 | 1:53.3390 | |
| 44th | 28 | Baas / Feinberg / McQuiston / Safina | Porsche 997 GT3 Cup | At Speed Motorsports | 1:53.4520 | 181.7979 | 1:53.4520 | |
| 45th | 64 | Lowe / Pace / Van Overbeek / Kelleners | Porsche 997 GT3 Cup | TRG | 1:53.4810 | 181.7513 | 1:53.4810 | |
| 46th | 63 | Spencer / Spencer / Grupp / Drummond / Espenlaub | Mazda RX-8 | Team Spencer Motorsports | 1:53.8820 | 181.1124 | 1:53.8820 | |
| 47th | 35 | Constantine / Borkowski / Murry / Prewitt | Porsche 997 GT3 Cup | Playboy Racing/Unitech | 1:54.0760 | 180.8034 | no time | 1:54.0760 |
| 48th | 57 | Cicero / Bunting / Gue / Stevenson / Gigliotti | Chevrolet Corvette | Stevenson Motorsports | 1:54.1110 | 180.7486 | 1:54.1110 | |
| 49th | 27 | O'Connell / Speakman / Bowles / Roush / Pechnik | Porsche 996 GT3 Cup | O'Connell Racing | 1:54.1700 | 180.6553 | 1:54.1700 | |
| 50th | 89 | Wellon / Ellis / Rossi / Grande / Trinkler | Porsche 997 GT3 Cup | Autometrics Motorsports | 1:54.6360 | 179.9198 | 1:54.6360 | no time |
| 51st | 14 | Patch / McGehee / Allen / Hamblin / Friedman | Porsche 996 GT3 Cup | Autometrics Motorsports | 1:54.8100 | 179.6478 | 1:54.8100 | no time |
| 52nd | 30 | Aschenbach / Lofton / Smith / Pavan | Pontiac GXP.R | Racers Edge Motorsports | 1:55.1710 | 179.0846 | no time | 1:55.1710 |
| 53rd | 97 | Rice / Riggins / Stevenson / Trenery / Gigliotti | Chevrolet Corvette | Stevenson Motorsports | 1:55.2390 | 178.9784 | no time | 1:55.2390 |
| 54th | 65 | Marden / Milner / Peterson / Gomez | Porsche 997 GT3 Cup | TRG | 1:55.2860 | 178.9059 | 1:55.2860 | no time |
| 55th | 21 | Connolly / Pecorari / Workman / Mason / Kapudija | BMW M3 E46 | Matt Connolly Motorsports | 1:55.4810 | 178.6034 | 1:55.4810 | no time |
| 56th | 43 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:55.7810 | 178.1415 | 1:58.6820 | 1:55.7810 |
| 57th | 68 | Ballou / DeSimone II / Jaeger / Gleason | Porsche 997 GT3 Cup | TRG | 1:56.0630 | 177.7086 | 1:56.0630 | no time |
| 58th | 52 | Drudi / Rosa / Ceccato / Masselli / Montermini | Ferrari 360 Modena Challenge | Mastercar | 1:56.0920 | 177.6635 | 1:56.0920 | no time |
| 59th | 83 | Gaylord / Pickering / Hilton / McCrackin | Porsche 997 GT3 Cup | Synergy Racing | 1:56.4500 | 177.1180 | 1:56.4500 | no time |
| 60th | 67 | Cloet / Bourque / Solley / Harris | Porsche 997 GT3 Cup | TRG | 1:56.8620 | 176.4935 | 1:56.8620 | no time |
| 61st | 08 | Goldin / Goldin / Finger / Zitza | Mazda RX-8 | Goldin Brothers Racing | 1:57.0790 | 176.1668 | 1:57.0790 | no time |
| 62nd | 46 | Baughman / Collyer / Connolly / Yeakle / Del Vecchio | Chevrolet Corvette | Michael Baughman Racing | 1:58.1740 | 174.5334 | 1:58.1740 | no time |
| 63rd | 48 | Hauser / Dubler / Magner / DeFontes | Chevrolet Corvette | WTF Engineering | 1:58.8640 | 173.5211 | 1:58.8640 | 2:00.3220 |
| 64th | 42 | Auriemma / Mayes / Kaemmer / Willcox / Varsha | Porsche 996 GT3 Cup | Team Sahlen | 1:58.9920 | 173.3344 | 1:58.9920 | 4:46.7200 |
| 65th | 41 | Brent / Malloy / Michaelian / Michaelian / Becker | Porsche 996 GT3 Cup | Team Sahlen | 2:01.1230 | 170.2847 | 2:01.1230 | 2:02.9530 |
| 66th | 24 | Pickett / Cotter / Montgomery / Hanson / Walker | BMW M3 E46 | Matt Connolly Motorsports | 2:01.1400 | 170.2605 | 2:01.1400 | 2:02.1200 |
| 67th | 45 | Wilson / Lewis / Sellers / Hand | Infiniti G35 | Howard Motorsports | 2:03.7710 | 166.6411 | no time | 2:03.7710 |
| 68th | 7 | Festa / Enge / Montanari / Yasukawa / Szekeres | Riley Mk XI Pontiac | SAMAX | 3:04.3710 | 111.8687 | 3:04.3710 | no time |
| 69th | 49 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | no time | | no time | no time |
| 70th | 82 | Kitch / Pennington / Pallis / Bawcutt | Porsche 997 GT3 Cup | Synergy Racing | no time | | no time | no time |