All available race results Pieter J. Jansen
| Date | Race | Rank |
| 06/06 | Nederlands Kampioenschap | 18 |
Rider information for 1920
| Rank | 749 |
| Score | 0 |
| Name | Pieter J. JANSEN |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 24/06 | Nederlands Kampioenschap | 5 |
Rider information for 1924
| Rank | 601 |
| Score | 17 |
| Name | Pieter J. JANSEN |
| Country | Netherlands |
| Team | Individual |