Info
| Last name | Janssen |
| First name | Sjefke |
| Nationality |  Netherlands |
| Date of birth | 28-10-1919 |
| Place of birth | Elsloo |
| Passed away | 03-12-2014 |
| Age when passed away | 95 |
| Place of passing | Elsloo |
| Date | Rank | Race |
|---|---|---|
| 10-05 | 8 | National Road Championships - Netherlands (CN) |
| 26-04 | 8 |  Meisterschaft von Zürich (1.1) |