All available race results Harold Henderson
| Date | Race | Rank |
| 16/07 | Timaru - Christchurch | 11 |
| 06/08 | Goulburn - Sydney | 4 |
| 30/08 | Warrnambool - Melbourne | 4 |
Rider information for 1904
| Rank | 82 |
| Score | 51 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 02/09 | Timaru - Christchurch | 2 |
Rider information for 1905
| Rank | 162 |
| Score | 27 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 01/09 | Timaru - Christchurch | 4 |
Rider information for 1906
| Rank | 235 |
| Score | 20 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 28/09 | Warrnambool - Melbourne | 5 |
Rider information for 1907
| Rank | 227 |
| Score | 23 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 31/10 | Timaru - Christchurch | 29 |
Rider information for 1909
| Rank | 1429 |
| Score | 0 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 17/08 | Taranaki Round-the-mountain Road Race | 2 |
| 07/09 | Timaru - Christchurch | 3 |
Rider information for 1911
| Rank | 212 |
| Score | 87 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 15/08 | Taranaki Round-the-mountain Road Race | 12 |
| 26/09 | Timaru - Christchurch | 1 |
Rider information for 1912
| Rank | 304 |
| Score | 44 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 11/09 | Taranaki Round-the-mountain Road Race | 2 |
Rider information for 1913
| Rank | 292 |
| Score | 37 |
| Name | Harold HENDERSON |
| Country | New Zealand |
| Team | Individual |