| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Lothar Motschenbacher | 96 | Dan Blocker Racing | McLaren M1B Oldsmobile | 85 | 3,750 | running | 10 | |
| 2 | Charles Parsons | 10 | Hilton Racing Team | McLaren M1B/Chevrolet | 85 | 1,500 | running | 0 | |
| 3 | John Fulp | 26 | Raceway Engineering | Lola T70 Mk.2 SL71-18/Chevrolet | 83 | 1,100 | running | 0 | |
| 4 | Dick Brown | 38 | Écurie Green | McLaren M1B/Ford | 83 | 900 | running | 0 | |
| 5 | Joe Buzzetta | 7 | Porsche of America | Porsche 906 103 | 82 | 1,500 | running | 0 | |
| 6 | Charlie Kolb | 1 | Schroeder Racing Team | Ferrari Dino 206S 008 | 82 | 1,100 | running | 0 | |
| 7 | Chuck Dietrich | 57 | Robert Amey | Elva Mk. 7/BMW | 81 | 800 | running | 0 | |
| 8 | Peter Gregg | 4 | Brumos Porsche | Porsche 906 106 | 79 | 600 | running | 0 | |
| 9 | Brooke Doran | 3 | M. Brooke Doran | McLaren M1B | 77 | 300 | running | 0 | |
| 10 | Bill Bowman | 87 | W. S. Bowman | Porsche 906 138 | 75 | 350 | running | 0 | |
| 11 | Don Skogmo | 31 | Don Skogmo | Lola T70 Mk.2 SL71-33/Chevrolet | 75 | 75 | running | 0 | |
| 12 | John Dennis | 44 | Suburban Racing Team | Denmacher 2 Porsche | 75 | 175 | running | 0 | |
| 13 | Ralph Trieschmann | 56 | Ralph Trieschman | Porsche 906 148 | 71 | 75 | running | 0 | |
| 14 | Art Seyler | 93 | Art Seyler | Cooper - Ford | 68 | 75 | running | 0 | |
| 15 | Owen Russell | 83 | John B. Addison | Russell Special | 62 | 75 | running | 0 | |
| 16 | Mike Pung | 85 | Mike Pung | Cheetah | 60 | 75 | running | 0 | |
| 17 | Bob Nagel | 14 | Bob Nagel | Elva Mk.8 BMW | 53 | 75 | running | 0 | |
| 18 | 1 | Mark Donohue | 6 | Roger Penske | Lola T70 Mk.2 SL71-32/Chevrolet | 79 | 75 | oil leak | 75 |
| 19 | Skip Hudson | 9 | Hudson Enterprises | Lola T70 Mk. I/Chevrolet | 57 | 75 | did not finish | 0 | |
| 20 | Earl Jones | 52 | Eve & Jones Racing | Genie Mk.10 Ford | 41 | 75 | did not finish | 0 | |
| 21 | Phil Seitz | 72 | Phil Seitz | Lotus 23B | 41 | 50 | did not finish | 0 | |
| 22 | Thomas C. Jones | 28 | Franklin Porath | Ferrari 290 | 40 | 50 | did not finish | 0 | |
| 23 | Charlie Hayes | Charles Hayes Racing | McLaren M1B-30-01/Chevrolet | 36 | 50 | did not finish | 0 | ||
| 24 | 1 | John Cannon | 62 | John Cannon | McLaren M1B Chevrolet | 36 | 50 | did not finish | 0 |
| 25 | Dave Causey | 54 | Dean Causey | Lotus 19 958/Ford | 35 | 50 | did not finish | 0 | |
| 26 | Ludwig Heimrath | 39 | Ludwig Heimrath | McLaren M1B Ford | 28 | 50 | did not finish | 0 | |
| 27 | Jerry Hansen | 88 | Jerry Hansen | Wolverine LD65-01/Chevrolet | 27 | 50 | did not finish | 0 | |
| 28 | Tom Payne | Shelby Cobra 427 | 25 | 50 | did not finish | 0 | |||
| 29 | Mike Hall | 69 | E. L. Hall | Porsche 906 147 | 24 | 50 | did not finish | 0 | |
| 30 | Mak Kronn | 77 | Honda of Waukegan | McKee Mk.6 Chevrolet | 20 | 50 | did not finish | 0 | |
| 31 | Bob Harris | 95 | Dan Blocker Racing | Genie Mk. 10/Ford | 11 | did not finish | 0 | ||
| 32 | Ralph Salyer | 25 | Jos. H. Salyer & Son | McKee Mk.6 Oldsmobile | 9 | did not finish | 0 | ||
| 33 | Doug Revson | 23 | Doug Revson | Porsche 906 121 | 7 | did not finish | 0 | ||
| 34 | Scott Beckett | 11 | Don Skogmo | Genie Mk.8 | 6 | did not finish | 0 | ||
| 35 | Bud Gates | 73 | Bud Gates | McLaren M1A-20-08/Chevrolet | 2 | did not finish | 0 |