Lexington, OH
Mid-Ohio MX Park
- July 21, 1974
- October 7, 1973
- July 30, 1972
All-Time Wins
450 Class
| Rider | Hometown | Wins |
|---|---|---|
 Gary Jones |  Hacienda Heights, CA | 1 |
| Pierre Karsmakers |  The Netherlands | 1 |
250 Class
| Rider | Hometown | Wins |
|---|---|---|
| Tim Hart | Torrance, CA | 1 |