All available race results J. Grootveld
| Date | Race | Rank |
| 20/07 | Nederlands Kampioenschap | 7 |
Rider information for 1919
| Rank | 395 |
| Score | 10 |
| Name | J. GROOTVELD |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 06/06 | Nederlands Kampioenschap | 6 |
Rider information for 1920
| Rank | 416 |
| Score | 15 |
| Name | J. GROOTVELD |
| Country | Netherlands |
| Team | Individual |