All available race results Dullio De Pieri
| Date | Race | Rank |
| 12/09 | Giro del Lazio | 32 |
Rider information for 1954
| Rank | 1670 |
| Score | 0 |
| Name | Dullio DE PIERI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 13/03 | Milano - Torino | 16 |
| 23/10 | Giro di Lombardia | 82 |
Rider information for 1955
| Rank | 1052 |
| Score | 8 |
| Name | Dullio DE PIERI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| Vuelta a Asturias | ||
| 15/06 | Stage 1 | 52 |
| 16/06 | Stage 2 | 34 |
| 17/06 | Stage 3 | 30 |
| 18/06 | Stage 4 | 38 |
| 19/06 | Stage 5 | 4 |
| 20/06 | Stage 6 | 24 |
| 21/06 | Stage 7 | 44 |
| 21/06 | General Classification | 25 |
Rider information for 1956
| Rank | 784 |
| Score | 15 |
| Name | Dullio DE PIERI |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 19/03 | Milano - Sanremo | 144 |
Rider information for 1957
| Rank | 1023 |
| Score | 5 |
| Name | Dullio DE PIERI |
| Country | Italy |
| Team | Individual |