All available race results H.G. Ison
| Date | Race | Rank |
| 28/09 | Warrnambool - Melbourne | 187 |
Rider information for 1907
| Rank | 661 |
| Score | 0 |
| Name | H.G. ISON |
| Country | Australia |
| Team | Individual |
| Date | Race | Rank |
| 01/10 | Warrnambool - Melbourne | 132 |
Rider information for 1910
| Rank | 855 |
| Score | 0 |
| Name | H.G. ISON |
| Country | Australia |
| Team | Individual |
| Date | Race | Rank |
| 16/11 | Barnet Glass Road Race | 48 |
Rider information for 1912
| Rank | 977 |
| Score | 0 |
| Name | H.G. ISON |
| Country | Australia |
| Team | Individual |