500MX Results
| Rider | Hometown | Machine |
|---|
| 1 | Pierre Karsmakers | Netherlands | Yamaha |
| 2 | Mike Hartwig | Hadley, MI | Husqvarna |
| 3 | Tim Hart | Torrance, CA | Yamaha |
| 4 | Gary Jones | Hacienda Heights, CA | Maico |
| 5 | Brad Lackey | Lafayette, CA | Kawasaki |
| 6 | Mike Runyard | West Covina, CA | Suzuki |
| 7 | Gary Semics | Lisbon, OH | Husqvarna |
| 8 | Jim Pomeroy | Yakima, WA | Bultaco |
| 9 | James Cooke | Huntington Beach, CA | Kawasaki |
| 10 | Mark Blackwell | Mission Viejo, CA | Husqvarna |
| 11 | Tony DiStefano | Bristol, PA | CZ |
| 12 | Gary Chaplin | Cayucos, CA | Honda |
| 13 | John Franklin | Madera, CA | Maico |
| 14 | Rich Thorwaldson | Cerritos, CA | Suzuki |
| 15 | Sonny DeFeo | Port Washington, NY | Maico |