All available race results Guglielmo Zanella
| Date | Race | Rank |
| Giro d'Italia | ||
| 18/05 | Stage 1 | 20 |
Rider information for 1910
| Rank | 612 |
| Score | 5 |
| Name | Guglielmo ZANELLA |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| Giro d'Italia | ||
| 19/05 | Stage 1 | 42 |
| 21/05 | Stage 2 | 41 |
| 23/05 | Stage 3 | 35 |
| 27/05 | Stage 5 | 32 |
| Giro del Veneto | ||
| General Classification | 13 |
Rider information for 1912
| Rank | 478 |
| Score | 22 |
| Name | Guglielmo ZANELLA |
| Country | Italy |
| Team | Favero - Dunlop |
| Date | Race | Rank |
| Giro d'Italia | ||
| 06/05 | Stage 1 | 60 |
Rider information for 1913
| Rank | 796 |
| Score | 0 |
| Name | Guglielmo ZANELLA |
| Country | Italy |
| Team | Individual |
No results available in season 1914.
Rider information for 1914
| Rank | 555 |
| Score | 0 |
| Name | Guglielmo ZANELLA |
| Country | Italy |
| Team | Atala - Dunlop |