All available race results Giovanni Castelletti
| Date | Race | Rank |
| Vuelta a España | ||
| 01/05 | Stage 1a | 67 |
| 01/05 | Stage 1b | 89 |
| 02/05 | Stage 2 | 82 |
| 03/05 | Stage 3 | 77 |
| 04/05 | Stage 4 | 33 |
| 05/05 | Stage 5 | 77 |
| 06/05 | Stage 6 | 62 |
| 07/05 | Stage 7 | 72 |
| 08/05 | Stage 8 | 72 |
| 09/05 | Stage 9 | 29 |
| 10/05 | Stage 10 | 69 |
| 11/05 | Stage 11 | 19 |
| 12/05 | Stage 12a | 65 |
| 12/05 | Stage 12b | 50 |
| 13/05 | Stage 13 | 17 |
| 14/05 | Stage 14 | 4 |
Rider information for 1963
| Rank | 387 |
| Score | 88 |
| Name | Giovanni CASTELLETTI |
| Country | Italy |
| Team | Firte |
| Date | Race | Rank |
| 19/09 | Giro del Veneto | 45 |
Rider information for 1964
| Rank | 1318 |
| Score | 0 |
| Name | Giovanni CASTELLETTI |
| Country | Italy |
| Team | U.C. Veronese |