Midland, MI
Midland Motocross Park
- June 19, 1977
- June 20, 1976
- June 29, 1975
All-Time Wins
450 Class
| Rider | Hometown | Wins |
|---|
250 Class
| Rider | Hometown | Wins |
|---|---|---|
 Bob Hannah |  Whittier, CA | 2 |
 Marty Smith | San Diego, CA | 1 |
| Rider | Hometown | Wins |
|---|
| Rider | Hometown | Wins |
|---|---|---|
| Bob Hannah | Whittier, CA | 2 |
| Marty Smith | San Diego, CA | 1 |