500MX Results
| Rider | Hometown | Motos | Bike |
|---|
| 1 |  Kent Howerton | San Antonio, TX  | 1 - 2 | Husqvarna |
| 2 | Gaylon Mosier | Garden Grove, CA | 3 - 4 | Maico |
| 3 | Pierre Karsmakers |  | 2 - 7 | Honda |
| 4 | Gary Semics | Lisbon, OH | 4 - 6 | Kawasaki |
| 5 | Billy Grossi | Santa Cruz, CA | 6 - 5 | Suzuki |
| 6 | Steve Stackable | Austin, TX | 13 - 3 | Suzuki |
| 7 |  Bob Hannah | Whittier, CA | - 1 | Yamaha |
| 8 | Tommy Croft | San Diego, CA | 9 - 9 | Honda |
| 9 | Rick Burgett | Sandy, OR | 5 - 13 | Yamaha |
| 10 | Mickey Boone | Winston Salem, NC | 11 - 8 | Suzuki |
| 11 | Wayne Boyer | Poway, CA | 7 - 12 | Bultaco |
| 12 | John Ayers | Grove City, PA | 10 - 10 | Maico |
| 13 | Gary Chaplin | Cayucos, CA | 8 - 15 | Suzuki |
| 14 | Robert Harris | Windsor, NY | 15 - 16 | CZ |
| 15 | Tony Summey | Forest City, NC | - 11 | Suzuki |
| 16 | Tony DiStefano | Bristol, PA | 12 | Suzuki |
| 17 | Chuck Sun | Sherwood, OR | - 14 | Husqvarna |
| 18 | Frank Stacy | Cheektowaga, NY | 16 - 19 | Penton |
| 19 | Joe Gretchen | Adena, OH | 14 | Suzuki |
| 20 | James Both | Franklin Lakes, NJ | 19 - 17 | Husqvarna |
| 21 | Mike Lenz | Hinsdale, IL | 17 - 20 | Suzuki |
| 22 | Greg Theiss | Omaha, NE | - 18 | Suzuki |
| 23 | Ken Adams | West Grove, PA | 18 | CZ |
| 24 | Terry Tucker | Hightstown, NJ | 20 | Yamaha |
Kent Howerton
Bob Hannah
