| Fin | St | Driver | # | Owner | Car | Laps | Money | Status | Laps Led |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | Bobby Unser | 12 | Roger Penske | Penske PC7/Cosworth TC | 67 | 10,055 | running | 62 |
| 2 | 4 | Wally Dallenbach | 40 | Pat Patrick | Penske PC6/Cosworth TC | 67 | 6,987 | running | 0 |
| 3 | 13 | Johnny Rutherford | 4 | McLaren Racing | McLaren M24B 001/Cosworth TC | 67 | 5,028 | running | 0 |
| 4 | 8 | Tom Bagley | 11 | Bobby Hillin | Penske PC6 005/Cosworth TC | 67 | 3,526 | running | 0 |
| 5 | 3 | Gordon Johncock | 20 | Pat Patrick | Penske PC6/Cosworth TC | 66 | 2,886 | running | 0 |
| 6 | 7 | Danny Ongais | 25 | Ted Field | Parnelli VPJ6C/Cosworth TC | 66 | 2,458 | running | 0 |
| 7 | 5 | Rick Mears | 12 | Roger Penske | 1978 Penske/Cosworth TC | 66 | 2,137 | running | 0 |
| 8 | 10 | Pancho Carter | 10 | Alex Morales | Lightning 77/Offenhauser TC | 65 | 1,710 | running | 5 |
| 9 | 12 | Bill Alsup | 41 | William Alsup | McLaren M16C 4/Offenhauser TC | 62 | 1,496 | running | 0 |
| 10 | 14 | Larry Rice | 35 | Patrick Santello | Lightning 77 LHL-4/Offenhauser TC | 60 | 1,282 | running | 0 |
| 11 | 11 | John Mahler | 92 | John Mahler | Eagle 72 Finley/DGS | 60 | 1,175 | running | 0 |
| 12 | 2 | Al Unser | 2 | Jim Hall | Chaparral 2K 01/Cosworth TC | 52 | 1,068 | universal joint | 0 |
| 13 | 16 | Spike Gehlhausen | 19 | Carl Gehlhausen | Eagle 74 Fletcher/Offenhauser TC | 52 | 961 | oil line | 0 |
| 14 | 9 | Steve Krisiloff | 7 | Robert Fletcher | Lightning 77/Cosworth TC | 50 | 855 | oil leak | 0 |
| 15 | 6 | Tom Sneva | 1 | Jerry O'Connell | McLaren M24 005/Cosworth TC | 41 | 748 | suspension | 0 |
| 16 | 15 | Joe Saldana | 69 | Richard Hoffman | Lightning 77/Offenhauser TC | 2 | 654 | lost power | 0 |