All available race results Henry O'Brien
| Date | Race | Rank |
| 07/08 | Olympic Games Amsterdam - Road Race | 58 |
Rider information for 1928
| Rank | 653 |
| Score | 25 |
| Name | Henry O'BRIEN |
| Country | United States |
| Team | Century Road Club |
| Date | Race | Rank |
| 04/08 | Olympic Games Time Trial | 11 |
Rider information for 1932
| Rank | 254 |
| Score | 106 |
| Name | Henry O'BRIEN |
| Country | United States |
| Team | Century Road Club |