Info
| Last name | Jongen |
| First name | Constant |
| Nationality |  Belgium |
| Date of birth | 12-03-1940 |
| Age | 85 |
| Place of birth | Mechelen-Bovelingen |
| Date | Rank | Race |
|---|---|---|
| 01-08 | 5 | National Road Championships - Belgium (CN) |
| 31-03 | 28 | De Brabantse Pijl (1.3) |
| 05-03 | 36 | Omloop Het Volk (1.1) |
Teams
| Year | Team |
|---|---|
| 1967 | Mann - Grundig |
| 1966 | Mann - Grundig |
| 1965 | Lamot - Libertas |
| 1964 | Flandria - Romeo |
| 1963 | Faema - Flandria |
Victories
| This year | 0 |
| Total | 0 |