Info
| Last name | De Keyser |
| First name | Constant |
| Nationality |  Belgium |
| Date of birth | 20-02-1935 |
| Place of birth | Rillaar |
| Passed away | 09-05-2016 |
| Age when passed away | 81 |
Monuments
| Date | Rank | Race |
|---|---|---|
| 27-08 | 7 | Druivenkoers Overijse (Nat) |
Teams
Victories
| This year | 0 |
| Total | 0 |