500MX Results
| Rider | Hometown | Machine |
|---|
| 1 | Pierre Karsmakers | Netherlands | Yamaha |
| 2 | John DeSoto | Honolulu, HI | CZ |
| 3 | Mike Runyard | West Covina, CA | Suzuki |
| 4 | Peter Lamppu | Los Angeles, CA | Kawasaki |
| 5 | James Cooke | Huntington Beach, CA | Kawasaki |
| 6 | Tony DiStefano | Bristol, PA | CZ |
| 7 | Mike Hartwig | Hadley, MI | Husqvarna |
| 8 | Don Stephenson | Covington, KY | Suzuki |
| 9 | Rod Cooper | Prospect, KY | Maico |
| 10 | Robert Gaines | Louisville, KY | CZ |
| 11 | John Carey | Birmingham, AL | Husqvarna |
| 12 | Gary Semics | Lisbon, OH | Husqvarna |
| 13 | Douglas Wilson | Rochester, MN | Yamaha |
| 14 | John Carey | Birmingham, AL | Husqvarna |
| 15 | Robert Martindale | Murfreesboro, TN | Maico |
| 16 | Brad Lackey | Lafayette, CA | Kawasaki |
| 17 | John Calhoun | Birmingham, AL | Husqvarna |
| 18 | Tom Doherty | Paola, KS | Yamaha |