| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Katsuo•Haga |
| Used name | Katsuo•Haga |
| Original name | 芳賀•勝男 |
| Born | 4 December 1938 in Sendai, Miyagi (JPN) |
| Died | 24 November 2000 |
| Measurements | 163 cm / 54 kg |
| NOC | Japan |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Boxing | JPN |
Katsuo Haga | |||
| Bantamweight, Men (Olympic) | =9 |