| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Mark Donohue | 6 | Roger Penske | Porsche 917/30 003 | 49 | 18,700 | running | 49 |
| 2 | 6 | Hurley Haywood | 59 | Brumos Racing | Porsche 917/10 007 | 49 | 10,100 | running | 0 |
| 3 | 7 | Charlie Kemp | 23 | Rinzler Motoracing/Royal Crown | Porsche 917/10 005 | 48 | 7,255 | running | 0 |
| 4 | 12 | Bob Nagel | 17 | Nagel Racing | Lola T260 HU1/Chevrolet | 47 | 4,763 | running | 0 |
| 5 | 17 | Milt Minter | 33 | Otto Zipper Alfa Racing | Alfa Romeo T33/3 75080-023 | 46 | 4,000 | running | 0 |
| 6 | 18 | Bob Peckham | 64 | Bob Peckham | McLaren M8C Chevrolet | 46 | 3,000 | running | 0 |
| 7 | 22 | Tom Dutton | 34 | Burmester Racing | McLaren M8C 70-10/Chevrolet | 45 | 2,535 | running | 0 |
| 8 | 20 | Steve Durst | 11 | Motschenbacher Racing | McLaren M8F 72-07/Chevrolet | 44 | 2,066 | piston | 0 |
| 9 | 23 | Hans Müller-Perschl | 22 | Hans Müller-Perschl | KMW SP30 Porsche | 41 | 1,933 | running | 0 |
| 10 | 11 | Scooter Patrick | 8 | U.S. Racing | McLaren M8D 3/Chevrolet | 34 | 2,366 | transmission | 0 |
| 11 | 4 | Brian Redman | 3 | Vasek Polak Racing Inc. | Porsche 917 028 | 31 | 1,867 | suspension | 0 |
| 12 | 21 | Frank Kahlich | 30 | Midwest Racing | McLaren M8F 72-08/Chevrolet | 31 | 1,600 | head gasket | 0 |
| 13 | 3 | Jody Scheckter | 0 | Vasek Polak Racing Inc. | Porsche 917/10 018 | 17 | 1,265 | bodywork | 0 |
| 14 | 16 | John Cordts | 9 | William Overhauser Racing | McLaren M8D 4/Chevrolet | 14 | 1,567 | head gasket | 0 |
| 15 | 8 | John Cannon | 96 | Commander Motor Homes | McLaren M20 2/Chevrolet | 12 | 2,667 | oil pressure | 0 |
| 16 | 15 | Sam Posey | 13 | Scuderia Filipinetti | Ferrari 512M 1048 | 12 | 1,534 | electrical | 0 |
| 17 | 9 | Jackie Oliver | 101 | Don Nichols | Shadow DN2 1A/Chevrolet | 3 | body damage | 0 | |
| 18 | 5 | David Hobbs | 73 | Roy Woods Racing | McLaren M20 1/Chevrolet | 3 | overheating | 0 | |
| 19 | 13 | Bobby Brown | 97 | Commander Motor Homes | McLaren M8F 1/Chevrolet | 2 | wheel | 0 | |
| 20 | 2 | George Follmer | 16 | Rinzler Motoracing/Royal Crown | Porsche 917/10 003 | 1 | accident | 0 | |
| 21 | 14 | Vic Elford | 102 | Don Nichols | Shadow DN2 2A/Chevrolet | 1 | throttle linkage | 0 | |
| 22 | 10 | John Cannon | 98 | Commander Motor Homes | McLaren M8F 72-09/Chevrolet | 0 | did not start | 0 | |
| 23 | 19 | Bob Nagel | 39 | Lola T260 HU2/Chevrolet | 0 | did not start | 0 | ||
| 24 | 24 | Gary Wilson | 2 | Gary Wilson | McLaren M8E 80-02/Chevrolet | 0 | did not start | 0 |