| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Masaki•Oya | |
| Used name | Masaki•Oya | |
| Original name | 大家•正喜 | |
| Born | 11 July 1966 in Komatsushima, Tokushima |  JPN |
| Measurements | 164 cm / 48 kg | |
| Affiliations | Sagawa Express Corporation | |
| NOC | Japan | JPN |
Personal Best: Mar – 2-09:11 (1997).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1996 Summer Olympics | Athletics | JPN |
Masaki Oya | |||
| Marathon, Men (Olympic) | 54 |
