All available race results William R. Mackrille
| Date | Race | Rank |
| 27/11 | Arlington Road Race | 3 |
Rider information for 1890
| Rank | 448 |
| Score | 23 |
| Name | William R. MACKRILLE |
| Country | United States |
| Team | Individual |
| Date | Race | Rank |
| 27/11 | Arlington Road Race | 3 |
| Rank | 448 |
| Score | 23 |
| Name | William R. MACKRILLE |
| Country | United States |
| Team | Individual |