All available race results William Riva
| Date | Race | Rank |
| 07/03 | Milano - Torino | 48 |
Rider information for 1970
| Rank | 1295 |
| Score | 0 |
| Name | William RIVA |
| Country | Italy |
| Team | G.B.C. - Zimba |
| Date | Race | Rank |
| 12/05 | Coppa Bernocchi | 18 |
Rider information for 1971
| Rank | 921 |
| Score | 3 |
| Name | William RIVA |
| Country | Italy |
| Team | U.S. Rulmeca Sedrinese |
No results available in season 1973.
Rider information for 1973
| Rank | 779 |
| Score | 5 |
| Name | William RIVA |
| Country | Italy |
| Team | Individual |