All available race results Italo De Zan
| Date | Race | Rank |
| 04/08 | Giro dell'Appennino | 8 |
| 21/10 | Coppa Agostoni | 4 |
| 27/10 | Giro di Lombardia | 4 |
Rider information for 1946
| Rank | 166 |
| Score | 236 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Olmo - Fulgor |
| Date | Race | Rank |
| 09/03 | Milano - Torino | 1 |
| 13/04 | Giro del Lazio | 22 |
| 27/04 | Giro del Piemonte | 8 |
| 12/08 | Tre Valli Varesine | 6 |
| 04/10 | Giro dell'Emilia | 6 |
| 26/10 | Giro di Lombardia | 3 |
Rider information for 1947
| Rank | 72 |
| Score | 620 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Lygie - Pirelli |
| Date | Race | Rank |
| 14/03 | Milano - Torino | 2 |
| 19/03 | Milano - Sanremo | 5 |
| 11/04 | Giro di Toscana | 12 |
| 01/05 | Giro di Romagna | 3 |
| Giro d'Italia | ||
| 26/05 | Stage 10 | 1 |
| General Classification | 28 | |
| 05/09 | Coppa Placci | 2 |
| 19/09 | Coppa Bernocchi | 13 |
| 10/10 | Giro dell'Emilia | 21 |
Rider information for 1948
| Rank | 68 |
| Score | 704 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Atala - Pirelli |
| Date | Race | Rank |
| 13/03 | Milano - Torino | 3 |
| 19/03 | Milano - Sanremo | 4 |
| 27/03 | Sassari - Cagliari | 1 |
Rider information for 1949
| Rank | 58 |
| Score | 772 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Atala - Pirelli |
| Date | Race | Rank |
| 25/04 | Milano - Vicenza | 11 |
Rider information for 1950
| Rank | 1219 |
| Score | 2 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Stucchi - Ursus |
| Date | Race | Rank |
| 11/03 | Milano - Torino | 22 |
| 19/03 | Milano - Sanremo | 119 |
Rider information for 1951
| Rank | 1005 |
| Score | 5 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 19/03 | Milano - Sanremo | 37 |
Rider information for 1952
| Rank | 968 |
| Score | 9 |
| Name | Italo DE ZAN |
| Country | Italy |
| Team | Vicini |