All available race results Harry Watson
| Date | Race | Rank |
| 27/10 | Warrnambool - Melbourne | 6 |
Rider information for 1923
| Rank | 509 |
| Score | 21 |
| Name | Harry WATSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| Dunlop Grand Prix | ||
| 14/11 | Stage 1 | 2 |
| 16/11 | Stage 2 | 8 |
| 17/11 | Stage 3 | 2 |
| 19/11 | Stage 4 | 2 |
| 19/11 | General Classification | 2 |
Rider information for 1927
| Rank | 210 |
| Score | 131 |
| Name | Harry WATSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 17/05 | Paris - Rennes | 18 |
| Tour de France | ||
| 17/06 | Stage 1 | 25 |
| 18/06 | Stage 2 | 32 |
| 19/06 | Stage 3 | 7 |
| 20/06 | Stage 4 | 14 |
| 21/06 | Stage 5 | 19 |
| 22/06 | Stage 6 | 54 |
| 23/06 | Stage 7 | 26 |
| 24/06 | Stage 8 | 10 |
| 26/06 | Stage 9 | 38 |
| 28/06 | Stage 10 | 45 |
| 30/06 | Stage 11 | 49 |
| 02/07 | Stage 12 | 18 |
| 04/07 | Stage 13 | 42 |
| 06/07 | Stage 14 | 71 |
| 08/07 | Stage 15 | 34 |
| 09/07 | Stage 16 | 24 |
| 10/07 | Stage 17 | 40 |
| 11/07 | Stage 18 | 53 |
| 12/07 | Stage 19 | 47 |
| 13/07 | Stage 20 | 33 |
| 14/07 | Stage 21 | 21 |
| 15/07 | Stage 22 | 34 |
| General Classification | 28 |
Rider information for 1928
| Rank | 90 |
| Score | 304 |
| Name | Harry WATSON |
| Country | New Zealand |
| Team | Ravat - Wonder - Dunlop |
| Date | Race | Rank |
| Centenary 1000 | ||
| 20/10 | Stage 1 | 9 |
| 22/10 | Stage 2 | 2 |
| 24/10 | Stage 4 | 9 |
| 26/10 | Stage 6 | 5 |
| 27/10 | General Classification | 2 |
Rider information for 1934
| Rank | 521 |
| Score | 39 |
| Name | Harry WATSON |
| Country | New Zealand |
| Team | Individual |
| Date | Race | Rank |
| 17/10 | Warrnambool - Melbourne (blue ribbon) | 14 |
Rider information for 1936
| Rank | 1102 |
| Score | 6 |
| Name | Harry WATSON |
| Country | New Zealand |
| Team | Individual |