All available race results W. Siddall
| Date | Race | Rank |
| 16/05 | Anfield 100 Invitational | 21 |
Rider information for 1921
| Rank | 999 |
| Score | 0 |
| Name | W. SIDDALL |
| Country | Great Britain |
| Team | Individual |
| Date | Race | Rank |
| 16/05 | Anfield 100 Invitational | 21 |
| Rank | 999 |
| Score | 0 |
| Name | W. SIDDALL |
| Country | Great Britain |
| Team | Individual |