All available race results A.A. Duffhuis
| Date | Race | Rank |
| 19/04 | Den Haag - Brussel | 19 |
Rider information for 1931
| Rank | 1604 |
| Score | 0 |
| Name | A.A. DUFFHUIS |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 19/04 | Den Haag - Brussel | 19 |
| Rank | 1604 |
| Score | 0 |
| Name | A.A. DUFFHUIS |
| Country | Netherlands |
| Team | Individual |