All available race results Robert Pierson
| Date | Race | Rank |
| 20/04 | G.P. de l'Echo d'Alger | 32 |
Rider information for 1924
| Rank | 1456 |
| Score | 0 |
| Name | Robert PIERSON |
| Country | Algeria |
| Team | Individual |
| Date | Race | Rank |
| 20/04 | G.P. de l'Echo d'Alger | 32 |
| Rank | 1456 |
| Score | 0 |
| Name | Robert PIERSON |
| Country | Algeria |
| Team | Individual |