1978 AMA Pro Motocross Championship Agency Motocross: 500MX Results
August 13, 1978
500MX Results
| Rider | Hometown | Motos | Bike | |
|---|---|---|---|---|
| 1 |  Rex Staten | Fontana, CA  | 2 - 1 | Yamaha |
| 2 |  Marty Smith | San Diego, CA | 1 - 3 | Honda |
| 3 | Rick Burgett | Sandy, OR | 8 - 2 | Yamaha |
| 4 | Darrell Shultz | Orangevale, CA | 5 - 4 | Suzuki |
| 5 | Steve Stackable | Austin, TX | 4 - 8 | Kawasaki |
| 6 | Tommy Croft | San Diego, CA | 3 - 11 | Honda |
| 7 | Mickey Boone | Winston Salem, NC | 9 - 6 | Suzuki |
| 8 | Tony DiStefano | Bristol, PA | 11 - 5 | Suzuki |
| 9 | Mickey Kessler | Farmingdale, NJ | 6 - 12 | Yamaha |
| 10 | Gary Semics | Lisbon, OH | 12 - 7 | Can-am |
| 11 | Ken Adams | West Grove, PA | 10 - 14 | Maico |
| 12 | Wayne Boyer | Poway, CA | 15 - 10 | Suzuki |
| 13 | Danny Laporte | Yucca Valley, CA | 7 | Suzuki |
| 14 | Pat Moroney | Newburgh, NY | - 9 | Suzuki |
| 15 | Jim Turner | Woodside, CA | - 13 | Husqvarna |
| 16 | Roger Brown | New Braunfels, TX | 13 | |
| 17 | Denny Swartz | Reno, OH | 14 | Maico |
| 18 | John Grant | Rome, GA | - 15 | |
| 19 | Rich French | Kilgore, TX | - 16 | Yamaha |
| 20 | Robert Shoup | Tipp City, OH | 16 | Suzuki |
| 21 | Gary Shipley | Washington, PA | - 17 | Husqvarna |
| 22 | Mike Meyer | Denver, CO | 20 - 18 | |
| 23 | David Stermer | Arvada, CO | 19 - 19 | |
| 24 | Wesley Patterson | Kansas City, KS | 17 | Maico |
| 25 | Gary Murphy | Santa Cruz, CA | 18 | Maico |
| 26 | Dare Westmoreland | Marshall, TX | - 20 | Suzuki |
