500MX Results
| Rider | Hometown | Machine |
|---|
| 1 | Brad Lackey | Lafayette, CA | Kawasaki |
| 2 | Gary Chaplin | Cayucos, CA | Maico |
| 3 | Robert Brown | Salt Lake City, UT | CZ |
| 4 | Rich Thorwaldson | Cerritos, CA | Suzuki |
| 7 | Tim Hart | Torrance, CA | Maico |
| 8 | Randal Lackey | Richmond, CA | CZ |
| 9 | Rob Norgaard | Lafayette, CA | CZ |
| 10 | Bruce Torbett | National City, CA | Husqvarna |
| 11 | Joel Kyne | Bishop, CA | Maico |
| 12 | Walter Axthelm | Costa Mesa, CA | Maico |
| 13 | Jim Pomeroy | Yakima, WA | Bultaco |
| 14 | William Payne | Mission Hills, CA | Maico |
| 15 | James Ruscitton | Sun Valley, ID | Husqvarna |
| 16 | Ron Bass | San Luis Obispo, CA | Maico |
| 17 | Dave Smith | Escondino, CA | Maico |
| 18 | Dennis Law | San Luis Obispo, CA | Maico |
| 19 | Richard Bungay | Sacramento, CA | Maico |
| 20 | John DeSoto | Honolulu, HI | Kawasaki |