All available race results Mieczysław Jaskólski
| Date | Race | Rank |
| Wyścig Dookoła Polski / Tour of Poland | ||
| 26/06 | Stage 2 | 9 |
| 27/06 | Stage 3 | 7 |
| 28/06 | Stage 4 | 9 |
| 29/06 | Stage 5 | 10 |
Rider information for 1937
| Rank | 783 |
| Score | 11 |
| Name | Mieczysław JASKÓLSKI |
| Country | Poland |
| Team | Individual |
| Date | Race | Rank |
| Wyścig Dookoła Polski / Tour of Poland | ||
| 22/07 | Stage 1 | 7 |
| 23/07 | Stage 2 | 4 |
| 25/07 | Stage 4 | 8 |
| 26/07 | Stage 5 | 6 |
| 28/07 | Stage 6 | 7 |
| 29/07 | Stage 7 | 8 |
| 30/07 | Stage 8 | 10 |
| General Classification | 3 |
Rider information for 1939
| Rank | 269 |
| Score | 139 |
| Name | Mieczysław JASKÓLSKI |
| Country | Poland |
| Team | Individual |