Info
| Last name | Girardengo |
| First name | Constante |
| Nationality |  Italy |
| Date of birth | 18-03-1893 |
| Place of birth | Novi Ligure |
| Passed away | 09-02-1978 |
| Age when passed away | 84 |
| Place of passing | Cassano Spinola |
Monuments
| Date | Rank | Race | |||||
|---|---|---|---|---|---|---|---|
| 25-10 | 6 | Giro di Lombardia (HIS) | |||||
| 11-10 | 1 | National Road Championships - Italy (CN) | |||||
| Giro d'Italia (2.HC) | |||||||
| 28-05 | 1 | Stage 3Lucca - Roma (430.0km) | |||||
| 26-05 | 3 | Stage 2Cuneo - Lucca (340.0km) | |||||
| 10-05 | 1 | Milano - Torino (1.1) | |||||
| 03-05 | 3 | Giro del Piemonte (1.2) | |||||
| 18-04 | 2 | Giro di Romagna (1.1) | |||||