Herman, NE
Omaha Moto Park
- April 22, 1979
- April 30, 1978
- April 24, 1977
- July 13, 1975
- June 1, 1975
All-Time Wins
450 Class
| Rider | Hometown | Wins |
|---|---|---|
 Bob Hannah |  Whittier, CA | 3 |
| Tony DiStefano | Bristol, PA | 1 |
250 Class
| Rider | Hometown | Wins |
|---|---|---|
 Marty Smith | San Diego, CA | 1 |
 Mark Barnett | Bridgeview, IL | 1 |
 Broc Glover | El Cajon, CA | 1 |