All available race results Hjalmar Pettersson
| Date | Race | Rank |
| Osloloppet | ||
| 14/06 | Stage 1 | 8 |
| 15/06 | Stage 2 | 7 |
| 16/06 | Stage 3 | 7 |
| 17/06 | Stage 4 | 8 |
| 17/06 | General Classification | 7 |
| 01/07 | Mälaren Runt | 2 |
| 07/08 | Olympic Games Amsterdam - Road Race | 32 |
Rider information for 1928
| Rank | 504 |
| Score | 42 |
| Name | Hjalmar PETTERSSON |
| Country | Sweden |
| Team | S.K. Fyrishof, Uppsala |
| Date | Race | Rank |
| Osloloppet | ||
| 12/06 | Stage 1 | 7 |
| 13/06 | Stage 2 | 9 |
| 14/06 | Stage 3 | 8 |
| 15/06 | Stage 4 | 7 |
| 16/06 | Stage 5 | 8 |
| 16/06 | General Classification | 5 |
Rider information for 1929
| Rank | 1723 |
| Score | 0 |
| Name | Hjalmar PETTERSSON |
| Country | Sweden |
| Team | Individual |
| Date | Race | Rank |
| Osloloppet | ||
| 13/06 | Stage 1 | 6 |
| 14/06 | Stage 2 | 3 |
| 15/06 | Stage 3 | 2 |
| 16/06 | Stage 4 | 4 |
| 17/06 | Stage 5 | 5 |
| 17/06 | General Classification | 3 |
Rider information for 1930
| Rank | 1669 |
| Score | 0 |
| Name | Hjalmar PETTERSSON |
| Country | Sweden |
| Team | Individual |
| Date | Race | Rank |
| Osloloppet | ||
| 17/06 | Stage 1 | 9 |
| 18/06 | Stage 2 | 7 |
| 20/06 | Stage 3 | 3 |
| 21/06 | Stage 4 | 9 |
| 21/06 | General Classification | 8 |
Rider information for 1931
| Rank | 1736 |
| Score | 0 |
| Name | Hjalmar PETTERSSON |
| Country | Sweden |
| Team | Individual |