All available race results Frits Wiersma
| Date | Race | Rank |
| Olympia's Tour | ||
| 06/07 | Stage 1 | 19 |
| 07/07 | Stage 2 | 13 |
| 09/07 | Stage 3 | 6 |
| 09/07 | General Classification | 12 |
Rider information for 1910
| Rank | 478 |
| Score | 12 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 28/07 | Nijmegen - Roermond - Nijmegen | 1 |
Rider information for 1912
| Rank | 361 |
| Score | 30 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 21/09 | Nederlands Kampioenschap | 1 |
Rider information for 1913
| Rank | 289 |
| Score | 38 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 28/06 | Nederlands Kampioenschap | 4 |
Rider information for 1914
| Rank | 315 |
| Score | 19 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 24/07 | Nederlands Kampioenschap | 2 |
Rider information for 1916
| Rank | 26 |
| Score | 30 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 23/03 | Ronde van Vlaanderen | 4 |
| 20/07 | Nederlands Kampioenschap | 1 |
Rider information for 1919
| Rank | 89 |
| Score | 218 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 06/06 | Nederlands Kampioenschap | 1 |
Rider information for 1920
| Rank | 261 |
| Score | 35 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Individual |
| Date | Race | Rank |
| 01/04 | Paris - Roubaix | 83 |
Rider information for 1923
| Rank | 763 |
| Score | 6 |
| Name | Frits WIERSMA |
| Country | Netherlands |
| Team | Wonder - Dunlop |