500MX Results
| Rider | Hometown | Motos | Machine |
|---|
| 1 | Steve Stackable | Austin, TX | 1 - 1 | Maico |
| 2 | Kent Howerton | San Antonio, TX | 2 - 2 | Husqvarna |
| 3 | Marty Smith | San Diego, CA | 3 - 4 | Honda |
| 4 | Bob Hannah | Whittier, CA | 6 - 3 | Yamaha |
| 5 | Jim Pomeroy | Yakima, WA | 4 - 6 | Honda |
| 6 | Rick Burgett | Sandy, OR | 5 - 5 | Yamaha |
| 7 | Billy Grossi | Santa Cruz, CA | 8 - 9 | Suzuki |
| 8 | Gary Semics | Lisbon, OH | 7 - 10 | Kawasaki |
| 9 | Gaylon Mosier | Garden Grove, CA | 10 - 8 | Maico |
| 10 | Rex Staten | Fontana, CA | 12 - 7 | Harley-Davidson |
| 11 | Tony DiStefano | Bristol, PA | 13 - 11 | Suzuki |
| 12 | Pierre Karsmakers | Netherlands | 16 - 12 | Yamaha |
| 13 | Rich Eierstedt | Norwalk, CA | 9 | Bultaco |
| 14 | Monte Anderson | Midlothian, TX | 17 - 14 | Penton |
| 15 | Jimmy Ellis | Cobalt, CT | 11 | Can-am |
| 16 | Steve Rhyan | San Clemente, CA | - 13 | KTM |
| 17 | Terry Clark | Lake Hughes, CA | 14 | Kawasaki |
| 18 | Parry Klassen | Reedley, CA | - 15 | Yamaha |
| 19 | Gary Jones | Hacienda Heights, CA | 19 - 17 | Yamaha |
| 20 | Chuck Sun | Sherwood, OR | 15 | Husqvarna |
| 21 | Randall Tarter | Euless, TX | - 16 | Yamaha |
| 22 | John Joyner | Plant City, FL | - 18 | Yamaha |
| 23 | Mickey Kessler | Farmingdale, NJ | 18 | Montesa |
| 24 | Terry Owen | Wiggins, MS | - 19 | Husqvarna |
| 25 | Dewitt Knox | Austin, TX | 20 - 20 | Husqvarna |