Info
| Last name | Siemons |
| First name | Jan |
| Nationality |  Netherlands |
| Date of birth | 26-05-1964 |
| Age | 61 |
| Place of birth | Zundert |
Monuments
| Date | Rank | Race |
|---|---|---|
| 13-09 | 11 |  GP de Fourmies (1.1) |
| 28-06 | 11 | National Road Championships - Netherlands (CN) |
| 03-05 | 9 |  Meisterschaft von Zürich (CDM) |
| 25-04 | 23 | Amstel Gold Race (CDM) |
| 29-03 | 14 |  De Brabantse Pijl (1.3) |
Teams
| Year | Team |
|---|---|
| 1992 | TVM-Sanyo |
| 1991 | TVM-Sanyo |
| 1990 | TVM - Yoko |
| 1989 | TVM - Van Schilt |
| 1988 | TVM - Van Schilt |
| 1987 | PDM-Ultima-Concorde |
| 1986 | PDM-Ultima-Concorde |
Victories
| This year | 0 |
| Total | 0 |