All available race results Omer Mahy
| Date | Race | Rank |
| 24/05 | Circuit du Nord de la France | 8 |
| 14/06 | Liège - Bastogne - Liège | 9 |
Rider information for 1925
| Rank | 173 |
| Score | 147 |
| Name | Omer MAHY |
| Country | Belgium |
| Team | Individual |
No results available in season 1926.
Rider information for 1926
| Rank | 1169 |
| Score | 0 |
| Name | Omer MAHY |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 24/04 | Paris - Lille | 5 |
| 08/05 | Paris - Caen | 17 |
| Tour de France | ||
| 19/06 | Stage 1 | 52 |
| 20/06 | Stage 2 | 48 |
| 21/06 | Stage 3 | 28 |
| 22/06 | Stage 4 | 40 |
| 23/06 | Stage 5 | 40 |
| 24/06 | Stage 6 | 36 |
| 25/06 | Stage 7 | 32 |
| 26/06 | Stage 8 | 19 |
| 27/06 | Stage 9 | 38 |
| 28/06 | Stage 10 | 41 |
| 30/06 | Stage 11 | 43 |
| 02/07 | Stage 12 | 40 |
| 04/07 | Stage 13 | 20 |
| 05/07 | Stage 14 | 30 |
| 06/07 | Stage 15 | 14 |
| 08/07 | Stage 16 | 29 |
| 09/07 | Stage 17 | 37 |
| 11/07 | Stage 18 | 20 |
| 12/07 | Stage 19 | 28 |
| 13/07 | Stage 20 | 25 |
| 14/07 | Stage 21 | 39 |
| 15/07 | Stage 22 | 19 |
| 16/07 | Stage 23 | 33 |
| 17/07 | Stage 24 | 8 |
| General Classification | 31 |
Rider information for 1927
| Rank | 122 |
| Score | 258 |
| Name | Omer MAHY |
| Country | Belgium |
| Team | Individual |
| Date | Race | Rank |
| 13/05 | Paris - Lille | 29 |
Rider information for 1928
| Rank | 966 |
| Score | 6 |
| Name | Omer MAHY |
| Country | Belgium |
| Team | Individual |