All available race results Gregorio de la Osa
| Date | Race | Rank |
| 07/09 | Copa Madrid | 4 |
Rider information for 1919
| Rank | 316 |
| Score | 19 |
| Name | Gregorio DE LA OSA |
| Country | Spain |
| Team | Individual |
| Date | Race | Rank |
| 06/06 | Clásica de los Puertos | 10 |
| 05/09 | Copa Madrid | 5 |
Rider information for 1920
| Rank | 312 |
| Score | 27 |
| Name | Gregorio DE LA OSA |
| Country | Spain |
| Team | Individual |
| Date | Race | Rank |
| 31/10 | Campeonato de España en carretera | 5 |
Rider information for 1921
| Rank | 1046 |
| Score | 0 |
| Name | Gregorio DE LA OSA |
| Country | Spain |
| Team | Individual |