| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Hirofumi•Otsuka | |
| Used name | Hirofumi•Otsuka | |
| Original name | 大塚•博文 | |
| Born | 8 October 1947 in ?, Hokkaido |  JPN |
| Measurements | 165 cm / 63 kg | |
| Affiliations | Senshu University | |
| NOC | Japan | JPN |
Personal Bests: 500 – 43.0 (1971); 1500 – 2:08.0 (1972); 5000 – 7:44.5 (1971); 10000 – 16:11.0 (1972).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1968 Winter Olympics | Speed Skating (Skating) | JPN |
Hirofumi Otsuka | |||
| 10,000 metres, Men (Olympic) | 28 |
