All available race results Mario Semprini
| Date | Race | Rank |
| Giro d'Italia | ||
| 18/05 | Stage 4 | 35 |
| 26/05 | Stage 8 | 33 |
| 28/05 | Stage 9 | 19 |
| 30/05 | Stage 10 | 33 |
| 03/06 | General Classification | 36 |
| 30/09 | Coppa Placci | 12 |
Rider information for 1928
| Rank | 312 |
| Score | 76 |
| Name | Mario SEMPRINI |
| Country | Italy |
| Team | Individual |
Rider information for 1929
| Rank | 507 |
| Score | 33 |
| Name | Mario SEMPRINI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 31/08 | Giro di Romagna | 7 |
| 19/10 | Giro dell'Umbria | 9 |
| Giro d'Italia | ||
| General Classification | 40 |
Rider information for 1930
| Rank | 306 |
| Score | 73 |
| Name | Mario SEMPRINI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 22/03 | Milano - Sanremo | 53 |
| Giro d'Italia | ||
| 10/05 | Stage 1 | 21 |
| 11/05 | Stage 2 | 19 |
| 15/05 | Stage 4 | 51 |
| 17/05 | Stage 5 | 63 |
| 25/05 | Stage 9 | 39 |
| 27/05 | Stage 10 | 51 |
| 29/05 | Stage 11 | 37 |
| 31/05 | Stage 12 | 44 |
| General Classification | 39 | |
| 20/09 | Predappio - Roma "Coppa del Duce" | 22 |
Rider information for 1931
| Rank | 262 |
| Score | 75 |
| Name | Mario SEMPRINI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| Giro d'Italia | ||
| 14/05 | Stage 1 | 104 |
| 15/05 | Stage 2 | 105 |
| 17/05 | Stage 3 | 15 |
Rider information for 1932
| Rank | 741 |
| Score | 12 |
| Name | Mario SEMPRINI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 26/03 | Milano - Sanremo | 60 |
Rider information for 1933
| Rank | 945 |
| Score | 6 |
| Name | Mario SEMPRINI |
| Country | Italy |
| Team | Individual |