| 1st | 6 | Mark Donohue / Jerry Hansen | McLaren M6A Chevrolet | Roger Penske Racing Enterprises | 2:15.9000 |
| 2nd | 10 | Skip Scott / Chuck Parsons | Lola T70 Mk.3 Chevrolet | Carl A. Haas Racing Teams Ltd. | 2:19.9000 |
| 3rd | 25 | Charlie Hayes / Charles Gibson | McKee Mk.10 Oldsmobile | Ralph C. Salyer | 2:21.5000 |
| 4th | 26 | Skip Scott / Chuck Parsons | Lola T70 Mk.3 Chevrolet | Carl A. Haas Racing Teams | 2:21.5000 |
| 5th | 39 | Ludwig Heimrath / Rudy Bartling | McLaren Elva Mark III Chevrolet | Heimrath Racing | 2:22.7000 |
| 6th | 61 | Fred Pipin / Jerry Entin | Lola T70 Mk.3 Chevrolet | Jack Douglas Chevrolet | 2:24.4000 |
| 7th | 98 | George Eaton / John Cannon | McLaren Elva Mark III Ford | George Eaton Racing | 2:24.6000 |
| 8th | 31 | George Ralph / Bruce Jennings | Lola T70 Mk.2B Chevrolet | George Ralph | 2:27.1000 |
| 9th | 24 | Bob Nagel / Ed Lowther | McKee Mk.7 Ford | R. D. Nagel | 2:27.8000 |
| 10th | 77 | Leonard Janke / Ralph Salyer | McLaren Elva Mark III Chevrolet | Janke Auto Co. | 2:30.4000 |
| 11th | 96 | Jean-Paul Ostiguy / Jacques Couture | McLaren Elva Mark II Chevrolet | Jean Paul Ostiguy | 2:31.0000 |
| 12th | 43 | Richard Galloway / Hank Candler | Lola T70 Mk.3 Chevrolet | R. B. Galloway | 2:31.9000 |
| 13th | 19 | Gary Wilson / Vic Campbell | McLaren Elva Mark II Chevrolet | Gary Wilson | 2:32.6000 |
| 14th | 14 | Bud Morley / B. Betts | Lola T70 Mk.3 Chevrolet | Morley Racing Team | 2:33.2000 |
| 15th | 9 | Frank Opalka / Bob Lyon | Wolverine Special Chevrolet | Frank Opalka | 2:35.0000 |
| 16th | 37 | Horst Kroll / Wayne Kelly | Kelly Special Porsche | Altona Motors | 2:36.8000 |
| 17th | 88 | Werner Frank / Ralph Trieschmann | Porsche 906 | Foreign Car Sales | 2:37.9000 |
| 18th | 33 | F. P. Wedge Rafferty / Larry Bock | McLaren Elva Mark III Chevrolet | F. P. Rafferty | 2:38.3000 |
| 19th | 69 | Lee Hall / Mike Hall | Porsche 906 | E. L. Hall | 2:38.8000 |
| 20th | 22 | Dick Jacobs / Dave Morrell | Elva Mk VIII BMW | Richard Finn | 2:39.5000 |
| 21st | 28 | Anson Johnson / Jef Stevens | Lola T70 Mk.3B Chevrolet | American Racing Motors | 2:41.3000 |
| 22nd | 72 | Phil Seitz / John Cordts | Elva Mk VIII BMW | Phil Seitz | 2:41.3000 |
| 23rd | 3 | Chuck Frederick / Keith Hardy | Lotus 19 Ford | F. & H. Racing | 2:43.1000 |
| 24th | 68 | Art Kijek / M. Cronin | K-T Special Ford | K. T. Cars, Ltd. | 2:44.1000 |
| 25th | 30 | George Dickinson / Joe Jann | Elva - Porsche | George Dickinson | 2:46.1000 |
| 26th | 12 | Cliff Phillips / Al Cervenka | Porsche 906 | C. L. Phillips | 2:47.9000 |
| 27th | 17 | Mike Robbins / Jack Cooper | Porsche 904 GTS | Mike Robbins | 2:49.3000 |
| 28th | 76 | George Drolsom / Mak Kronn | Lola T70 Mk.3 Chevrolet | George Drolsom | 2:49.8000 |
| 29th | 49 | Richard Dagiel / Guy Wooley | Lotus 30 Ford | Dagiel Engineering | 2:55.7000 |
| 30th | 14 | Paul Canary / Paul Tufts | Cooper Monaco T61 Chevrolet | | 2:57.9000 |
| 31st | 91 | Bill Tuttle / Gloria Tuttle | Elva Mk VII S Porsche | Tuttle Foreign Car Sales | 2:58.8000 |
| 32nd | 13 | James Place / Bill Blackmore | Lotus 23 Porsche | James Place | 3:00.8000 |
| 33rd | 34 | Max Beimler / Dave Wolin | Chinook Mk II Chevrolet | Max Beimler | 3:05.1000 |
| 34th | 15 | Brian O'Neil / Jef Stevens | Lola T70 Mk.3B Chevrolet | American Racing Motors | no time |