(All Session Laps)
| Pos. | No. | Drivers | Car | Entrant | All Best | Q Time |
| 1st | 66 | Jim Hall | Chaparral 2G Chevrolet | Chaparral Cars Inc. | 1:19.000 | 1:19.0000 |
| 2nd | 6 | Mark Donohue | McLaren M6A Chevrolet | Roger Penske | 1:19.400 | 1:19.4000 |
| 3rd | 11 | Lothar Motschenbacher | McLaren M6B Ford | Motschenbacher Racing | 1:20.700 | 1:20.7000 |
| 4th | 52 | Peter Revson | Lola T70 Mk.3 Ford | Shelby American Inc. | 1:21.000 | 1:21.0000 |
| 5th | 1 | Sam Posey | Caldwell D7B Chevrolet | Autodynamics | 1:21.900 | 1:21.9000 |
| 6th | 26 | Skip Scott | Lola T70 Mk.3 Chevrolet | Carl Haas | 1:21.900 | 1:21.9000 |
| 7th | 9 | Moises Solana | McLaren M6B Chevrolet | Aztec Racing | 1:22.200 | 1:22.2000 |
| 8th | 10 | Chuck Parsons | Lola T70 Mk.3 Chevrolet | Carl Haas | 1:22.500 | 1:22.5000 |
| 9th | 62 | John Cannon | McLaren Elva Mark III Chevrolet | | 1:22.500 | 1:22.5000 |
| 10th | 12 | Jerry Entin | Lola T70 Mk.3 Chevrolet | Jerry Entin | 1:22.600 | 1:22.6000 |
| 11th | 14 | Bud Morley | Lola T70 Mk.3 Chevrolet | Bud Morley | 1:23.700 | 1:23.7000 |
| 12th | 36 | Swede Savage | Lola T70 Mk.3 Ford | All American Racing | 1:23.800 | 1:23.8000 |
| 13th | 76 | Tony Settember | Lola T70 Mk.3 Chevrolet | Webster Racing | 1:24.200 | 1:24.2000 |
| 14th | 99 | Bill Young | Lola T70 Mk.3 Chevrolet | | 1:24.200 | 1:24.2000 |
| 15th | 81 | Jay Hills | McLaren Elva Mark IIB Chevrolet | Jay Hills | 1:25.700 | 1:25.7000 |
| 16th | 98 | George Eaton | McLaren Elva Mark III Ford | George Eaton Racing | 1:26.300 | 1:26.3000 |
| 17th | 38 | Ron Herrera | McLaren Elva Mark II Chevrolet | | 1:27.800 | 1:27.8000 |
| 18th | 60 | Don Wester | Porsche 910 | Otto Zipper | 1:29.300 | 1:29.3000 |
| 19th | 77 | Jack Millikan | Lola T70 Mk.2 Chevrolet | George Hollinger | 1:29.600 | 1:29.6000 |
| 20th | 33 | Scooter Patrick | Porsche 906 | | 1:29.700 | 1:29.7000 |
| 21st | 61 | Milt Minter | Porsche 906 | | 1:30.700 | 1:30.7000 |
| 22nd | 7 | Leonard Janke | McLaren Elva Mark III Chevrolet | Janke Auto Co. | 1:31.100 | 1:31.1000 |
| 23rd | 21 | Jim Paul | McLaren Elva Mark IIIB Chevrolet | | 1:32.200 | 1:32.2000 |
| 24th | 91 | Doug Hooper | McLaren Elva Mark III Chevrolet | Doug Hooper | 1:32.700 | 1:32.7000 |
Entered cars that did not arrive:
| No. | Drivers | Car | Entrant |
| 2 | Bob Challman | Lotus 40 | Ecurie Shirlee |
| 5 | Duane Feuerhelm | Lotus - Datsun | |
| 37 | George Hollinger | Lola T70 Mk.2 Chevrolet | Sports Racing Pacific |
| 41 | Ron La Peer | Genie - Chevrolet | |
| 49 | Dennis Harrison | Platypus - Oldsmobile | Miles Gupton |
| 68 | Charles Kulmann | Lotus 23B | |
| 71 | Bob West | McLaren - Chevrolet | |
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