| 01 | Pruett / Rojas / Franchitti / Montoya | Riley Mk XI Lexus | TELMEX Chip Ganassi with Felix Sabates | 1:41.2320 |
| 9 | Briscoe / Castroneves / Busch | Riley Mk XI Pontiac | Penske-Taylor Racing | 1:41.2770 |
| 6 | Pew / James / Allmendinger / Frisselle | Riley Mk XX Ford | Michael Shank Racing | 1:41.5550 |
| 61 | Frisselle / Wilkins / Ranger / Braun | Riley Mk XX Ford | AIM Autosport | 1:41.5840 |
| 99 | Johnson / Gurney / Fogarty / Vasser | Riley Mk XI Pontiac | Gainsco/Bob Stallings Racing | 1:41.7610 |
| 02 | Dixon / Wheldon / Duran / Lloyd | Riley Mk XI Lexus | Target Chip Ganassi with Felix Sabates | 1:41.8180 |
| 10 | Taylor / Angelelli / Valiante / Taylor | Riley Mk XI Pontiac | SunTrust Racing | 1:41.8550 |
| 60 | Patterson / Negri / Wilson / Rahal | Riley Mk XX Ford | Michael Shank Racing | 1:41.9180 |
| 11 | Duno / Primat / Mücke / Enge / Charouz / Dalziel | Riley Mk XI Pontiac | SAMAX | 1:41.9870 |
| 2 | Zogaib / McNish / Luhr / Rockenfeller | Riley Mk XI Pontiac | SAMAX | 1:41.9950 |
| 58 | Donohue / Law / Rice | Riley Mk XI Porsche | Brumos Porsche | 1:42.0290 |
| 59 | France / Haywood / Barbosa / Borcheller | Riley Mk XI Porsche | Brumos Porsche/Kendall | 1:42.0430 |
| 91 | Matthews / Goossens / Hunter-Reay / O'Connell | Riley Mk XX Pontiac | Bob Stallings/Riley-Matthews | 1:42.3030 |
| 77 | Gidley / Jaeger / Gollin / Gardel | Doran JE4 Ford | Doran Racing | 1:42.6590 |
| 7 | Plumb / Wahl / Grégoire / Cullen / Shovlin | Riley Mk XI BMW | Fortune Market Racing | 1:42.8310 |
| 23 | Auberlen / Hand / Long / Wallace | Crawford DP03 Porsche | Alex Job Racing | 1:42.9220 |
| 16 | Bobbi / Garcia / Kimber-Smith | Fabcar FDSC/03 Evo Pontiac | Cheever Racing | 1:43.0010 |
| 09 | Cosmo / Camirand / McDowell | Fabcar FDSC/03 Porsche | Spirit of Daytona Racing | 1:43.0060 |
| 12 | Schramm / Bell / Bell / Dallenbach / Kasemets | Riley Mk XI Pontiac | RVO Motorsports | 1:43.1940 |
| 3 | Shane Lewis | Riley Mk XI Lexus | Southard Motorsports | 1:43.2310 |
| 75 | Krohn / van de Poele / Gavin | Lola B08/70 Pontiac | Krohn Racing | 1:43.6530 |
| 76 | Jönsson / Zonta / Turner | Lola B08/70 Pontiac | Krohn Racing | 1:44.3340 |
| 51 | Newton / Erdos / Mayer | Coyote CC/08 Pontiac | Cheever Racing | 1:45.6110 |
| 30 | Dobson / Thorne / Michaelian / Michaelian | Mazda RX-8 | Racers Edge Motorsports | 1:50.6170 |
| 15 | Nastasi / Empringham / Dumoulin / Said | Ford Mustang Cobra GT | Blackforest Motorsports | 1:51.1390 |
| 80 | Greenberg / Faulkner / Heylen / Arnold | Porsche 997 GT3 Cup | Synergy Racing | 1:51.2230 |
| 88 | Stippler / Kaffer / Lacey / Wilkins | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:51.2320 |
| 89 | Drudi / Giammaria / Rosa / Hardt / Petrobelli | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:51.2320 |
| 66 | Miller / Collard / Ballou / Lally / Dumas | Porsche 997 GT3 Cup | TRG | 1:51.2700 |
| 64 | Lowe / Pace / Van Overbeek / Sugden / Valentine | Porsche 997 GT3 Cup | TRG | 1:51.2810 |
| 70 | Haskell / Tremblay / Ham / Matos | Mazda RX-8 | SpeedSource | 1:51.3430 |
| 86 | Henzler / Lux / Keen / Maassen / Bergmeister | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:51.3510 |
| 40 | Foster / Espenlaub / Dempsey | Mazda RX-8 | Hyper Sport | 1:51.4080 |
| 29 | de Quesada / Basseng / Lieb / Gleason / Swartzbaugh | Porsche 997 GT3 Cup | Alegra Motorsports | 1:51.4370 |
| 81 | Johnson / Doornbos / Lietz / Huisman | Porsche 997 GT3 Cup | Synergy Racing | 1:51.4740 |
| 14 | Friedman / McGehee / Lazzaro / Kelleners | Porsche 997 GT3 Cup | Autometrics Motorsports | 1:51.5310 |
| 67 | Pumpelly / Sellers / Westbrook / George, Jr. | Porsche 997 GT3 Cup | TRG | 1:51.6560 |
| 34 | Willsley / Mowlem / Fitzgerald / Papadopoulos | Porsche 997 GT3 Cup | Orbit | 1:51.7010 |
| 87 | Werner / Farnbacher / Ehret / Bernhard | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:51.7300 |
| 62 | Ragginger / Baldwin / Burtin / Tucker / Zabinski | Porsche 997 GT3 Cup | TRG | 1:51.7630 |
| 21 | Reindler / Alessi / Prewitt | Pontiac GTO.R | Matt Connolly Motorsports | 1:51.7740 |
| 69 | Assentato / Longhi / Segal / Pechnik | Mazda RX-8 | SpeedSource | 1:51.8030 |
| 07 | Edwards / Collins / Magnussen | Pontiac GXP.R | Banner Racing | 1:51.8360 |
| 72 | Aschenbach / Lewis, Jr. / Stanton / Papis | Pontiac GXP.R | Autohaus Motorsports | 1:52.0980 |
| 65 | Oasis / Atherton / Stout / Daskalos / Archer | Porsche 997 GT3 Cup | TRG | 1:52.1510 |
| 43 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:52.1830 |
| 63 | Ende / Yarab, Jr. / Bourque / Maher | Porsche 997 GT3 Cup | TRG | 1:52.2090 |
| 06 | Reese / Nearn / Pilgrim / Bunting / Edwards | Pontiac GXP.R | Banner Racing | 1:52.4220 |
| 57 | Liddell / Davis / Pobst / Jeannette | Pontiac GXP.R | Stevenson Motorsports | 1:52.4360 |
| 52 | Biagi / Pescatori / Bertuzzi / Monzón | Ferrari F430 Challenge | Mastercar | 1:52.8280 |
| 83 | McCrackin / Smith / Walker | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:52.8910 |
| 74 | Skea / Patch / Hamblin / Rosenzweig / Courtney | Porsche 997 GT3 Cup | Autometrics Motorsports | 1:52.8920 |
| 22 | de Quesada / Gabel / Woodman / Dumoulin / Scardina | Porsche 997 GT3 Cup | Alegra Motorsports | 1:52.9070 |
| 68 | Gomez / Auriemma / Mayes | Porsche 997 GT3 Cup | TRG | 1:53.0240 |
| 90 | Thornton / Long / Varde / Russell | BMW M6 | Automatic Racing | 1:53.5000 |
| 17 | Jensen / Jensen / Zitza / Taylor | Porsche 997 GT3 Cup | Terra Firma Motorsports | 1:53.5620 |
| 85 | Kitch / Bentley / Miller / Pallis | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:53.9720 |
| 42 | Sahlen / Nonnamaker / Nonnamaker / Nonnamaker | Chevrolet Corvette | Team Sahlen | 1:54.1180 |
| 26 | Jacalone / Jacalone / Schmidt | Porsche 997 GT3 Cup | Gotham Competition | 1:54.5160 |
| 50 | Farano / Jensen / Cloud / Bradley | Ford Mustang | Blackforest Motorsports | 1:55.2190 |
| 84 | Bingham / Pickering / Cotter / Pennington / Kitch | Porsche 997 GT3 Cup | Farnbacher Loles Motorsports | 1:55.6610 |
| 44 | Paquette / Nixon | Porsche 996 GT3 Cup | Bullet Racing | 1:55.9420 |
| 08 | Goldin / Goldin / Meassick | Mazda RX-8 | Goldin Brothers Racing | 1:58.3460 |