| 1st | 2 | Frank Biela / Emanuele Pirro / Marco Werner | Audi R10 TDI | Audi Sport North America | 1:44.9740 | 204.2081 |
| 2nd | 1T | Rinaldo Capello / Tom Kristensen / Allan McNish | Audi R10 TDI | Audi Sport North America | 1:45.3260 | 203.5257 |
| 3rd | 7 | Timo Bernhard / Romain Dumas / Helio Castroneves | Porsche RS Spyder | Penske Racing | 1:46.0460 | 202.1433 |
| 4th | 9 | David Brabham / Stefan Johansson / Duncan Dayton | Acura ARX-01a | Highcroft Racing | 1:47.1090 | 200.1364 |
| 5th | 16 | Andy Wallace / Butch Leitzinger / Andy Lally | Porsche RS Spyder | Dyson Racing Team | 1:47.1300 | 200.0978 |
| 6th | 26 | Marino Franchitti / Tony Kanaan / Bryan Herta | Acura ARX-01a | Andretti Green Racing, Inc. | 1:47.4230 | 199.5522 |
| 7th | 20 | Chris Dyson / Guy Smith | Porsche RS Spyder | Dyson Racing Team | 1:48.1750 | 198.1650 |
| 8th | 15 | Adrian Fernandez / Luis Diaz | Lola B06/43 Acura | Lowe's Fernandez Racing | 1:48.4170 | 197.7224 |
| 9th | 6 | Sascha Maassen / Emmanuel Collard / Ryan Briscoe | Porsche RS Spyder | Penske Racing | 1:50.1850 | 194.5504 |
| 10th | 8 | Ben Devlin / James Bach / Raphael Matos | Lola B07/40 Mazda | BK Motorsports | 1:50.3120 | 194.3251 |
| 11th | 12 | Chris McMurry / Bryan Willman / Michael Lewis | Lola EX257 AER | Autocon Motorsports | 1:53.1250 | 189.4938 |
| 12th | 27 | Didier Theys / Fredy Lienhard / Eric van de Poele | Lola B05/40 Judd | Horag Racing | 1:53.5940 | 188.7117 |
| 13th | 3 | Ron Fellows / Johnny O'Connell / Jan Magnussen | Chevrolet Corvette C6.R | Corvette Racing | 1:57.0610 | 183.1224 |
| 14th | 4 | Oliver Gavin / Olivier Beretta / Max Papis | Chevrolet Corvette C6.R | Corvette Racing | 1:57.4800 | 182.4690 |
| 15th | 63 | Antonio Garcia / Darren Turner / Liz Halliday | Aston Martin DBR9 | Team Modena | 1:58.2410 | 181.2942 |
| 16th | 31 | Tomáš Enge / Tim Bergmeister | Ferrari F430 GTC | Petersen White Lightning | 2:02.7010 | 174.7056 |
| 17th | 45 | Jörg Bergmeister / Johannes Van Overbeek / Marc Lieb | Porsche 997 GT3 RSR | Flying Lizard Motorsports | 2:03.0430 | 174.2195 |
| 18th | 71 | Wolf Henzler / Robin Liddell / Patrick Long | Porsche 997 GT3 RSR | Tafel Racing | 2:03.3380 | 173.8027 |
| 19th | 73 | Dominik Farnbacher / Jim Tafel / Ian James | Porsche 997 GT3 RSR | Tafel Racing | 2:03.6520 | 173.3618 |
| 20th | 61 | Niclas Jönsson / Colin Braun / Tracy Krohn | Ferrari F430 GTC | Risi Competizione | 2:03.8110 | 173.1381 |
| 21st | 21 | Joey Hand / Bill Auberlen / Tom Kimber-Smith | Panoz Esperante GT-LM | Panoz Team PTG | 2:03.9970 | 172.8790 |
| 22nd | 18 | Ralf Kelleners / Tommy Milner / Graham Rahal | Porsche 997 GT3 RSR | Rahal Letterman Racing | 2:04.0010 | 172.8725 |
| 23rd | 85 | Dirk Werner / Pierre Ehret / Lars Nielsen | Porsche 997 GT3 RSR | FarnbacherLoles Motorsports | 2:04.6540 | 171.9681 |
| 24th | 22 | Scott Maxwell / Bryan Sellers / Ross Smith | Panoz Esperante GT-LM | Panoz Team PTG | 2:04.6860 | 171.9230 |
| 25th | 86 | Peter Kox / Jaroslav Janiš | Spyker C8 Audi | Spyker Squadron | 2:04.7580 | 171.8248 |
| 26th | 44 | Darren Law / Seth Neiman / Lonnie Pechnik | Porsche 997 GT3 RSR | Flying Lizard Motorsports | 2:04.8970 | 171.6333 |
| 27th | 54 | Marc Basseng / Tim Pappas / Terry Borcheller | Porsche 997 GT3 RSR | Team Trans Sport Racing | 2:06.8110 | 169.0423 |
| 28th | 24 | Joe Macari / Ben Aucott / Rob Wilson | Ferrari F430 GTC | JMB Racing | 2:07.0620 | 168.7091 |
| 29th | 53 | Arie Luyendyk, Jr. / David Robertson / Andrea Robertson | Panoz Esperante GT-LM | Robertson Racing, LLC | 2:11.5290 | 162.9783 |
| 30th | 10 | Luciano Da Silva / Philip Collin / Antônio Hermann | Porsche 996 GT3-RSR | Konrad Motorsport | 2:13.0560 | 161.1082 |
| 31st | 77 | Miro Konôpka / Bo McCormick / Mauro Casadei | Porsche 996 GT3-R | Autoracing Club Bratislava | 2:15.6930 | 157.9780 |
| 32nd | 37 | Richard Berry / Clint Field / Jon Field | Creation CA06/H Judd | Intersport Racing | 10:27.3409 | 34.1696 |
| 33rd | 62 | Jaime Melo / Johnny Mowlem / Mika Salo | Ferrari F430 GTC | Risi Competizione | 2:02.4390 | 175.0789 |
| 34th | 32 | Rui Aguas / José Maria Lopez / Maurizio Mediani | Ferrari F430 GTC | Corsa/White Lightning | no time | |