All available race results W.J. Mason
| Date | Race | Rank |
| 09/06 | Anfield 100 Invitational | 6 |
Rider information for 1919
| Rank | 311 |
| Score | 21 |
| Name | W.J. MASON |
| Country | Great Britain |
| Team | Individual |
| Date | Race | Rank |
| 24/05 | Anfield 100 Invitational | 12 |
Rider information for 1920
| Rank | 520 |
| Score | 9 |
| Name | W.J. MASON |
| Country | Great Britain |
| Team | Individual |