All available race results Lorenzo Mazzarello
| Date | Race | Rank |
| 23/08 | Giro dell'Appennino | 19 |
Rider information for 1936
| Rank | 1557 |
| Score | 0 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 14/08 | Torino - Ceriale | 18 |
Rider information for 1938
| Rank | 1191 |
| Score | 0 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Dopolavoro Ansaldo Genova |
| Date | Race | Rank |
| 19/03 | Milano - Sanremo | 45 |
| Giro d'Italia | ||
| 28/04 | Stage 1 | 9 |
| 29/04 | Stage 2 | 63 |
| 30/04 | Stage 3 | 60 |
| 01/05 | Stage 4 | 65 |
| 02/05 | Stage 5 | 82 |
| 04/05 | Stage 6a | 69 |
| 04/05 | Stage 6b | 39 |
| 05/05 | Stage 7 | 68 |
| 06/05 | Stage 8 | 16 |
| 07/05 | Stage 9a | 66 |
| 07/05 | Stage 9b | 41 |
| 09/05 | Stage 10 | 44 |
| 10/05 | Stage 11 | 70 |
| 11/05 | Stage 12 | 70 |
| 13/05 | Stage 13 | 66 |
| 16/07 | Giro dell'Appennino | 1 |
Rider information for 1939
| Rank | 412 |
| Score | 64 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | OND Novi Ligure |
| Date | Race | Rank |
| 19/03 | Milano - Sanremo | 81 |
| 02/05 | Giro del Piemonte | 26 |
| Giro d'Italia | ||
| 17/05 | Stage 1 | 65 |
| 18/05 | Stage 2 | 12 |
| 19/05 | Stage 3 | 46 |
| 20/05 | Stage 4 | 19 |
| 21/05 | Stage 5 | 10 |
| 23/05 | Stage 6 | 70 |
| 24/05 | Stage 7 | 21 |
| 25/05 | Stage 8 | 58 |
| 26/05 | Stage 9 | 11 |
| 27/05 | Stage 10 | 52 |
| 29/05 | Stage 11 | 55 |
| 30/05 | Stage 12 | 15 |
| 31/05 | Stage 13 | 17 |
| 01/06 | Stage 14 | 10 |
| 03/06 | Stage 15 | 43 |
| 04/06 | Stage 16 | 38 |
| 05/06 | Stage 17 | 37 |
| 07/06 | Stage 18 | 47 |
| 08/06 | Stage 19 | 38 |
| 09/06 | Stage 20 | 8 |
| 09/06 | General Classification | 39 |
Rider information for 1940
| Rank | 87 |
| Score | 194 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Gerbi |
| Date | Race | Rank |
| 19/03 | Milano - Sanremo | 44 |
Rider information for 1941
| Rank | 476 |
| Score | 10 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Aquilano |
| Date | Race | Rank |
| 08/03 | Milano - Torino | 18 |
| 06/04 | Giro del Lazio | 27 |
Rider information for 1942
| Rank | 593 |
| Score | 1 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Aquilano |
No results available in season 1945.
Rider information for 1945
| Rank | 767 |
| Score | 0 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Individual |
| Date | Race | Rank |
| 04/08 | Giro dell'Appennino | 14 |
Rider information for 1946
| Rank | 1194 |
| Score | 0 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | U.S. Rossiglionese |
| Date | Race | Rank |
| 10/08 | Giro dell'Appennino | 15 |
Rider information for 1947
| Rank | 1312 |
| Score | 0 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | Ferrovario Genova |
No results available in season 1948.
Rider information for 1948
| Rank | 1415 |
| Score | 0 |
| Name | Lorenzo MAZZARELLO |
| Country | Italy |
| Team | G.S. Ferrovieri Genova |