Adelphi, OH
Cycle Trails Moto Park
- June 10, 1973
All-Time Wins
450 Class
| Rider | Hometown | Wins |
|---|---|---|
 Gary Jones |  Hacienda Heights, CA | 1 |
| Pierre Karsmakers |  The Netherlands | 1 |
250 Class
| Rider | Hometown | Wins |
|---|
| Rider | Hometown | Wins |
|---|---|---|
| Gary Jones | Hacienda Heights, CA | 1 |
| Pierre Karsmakers | The Netherlands | 1 |
| Rider | Hometown | Wins |
|---|