| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Koji•Hirabayashi |
| Used name | Koji•Hirabayashi |
| Born | 5 January 1942 in Tokyo, Tokyo (JPN) |
| Measurements | 169 cm / 57 kg |
| Affiliations | Tokyo |
| NOC |  Canada |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Wrestling | CAN |
Koji Hirabayashi | |||
| Bantamweight, Freestyle, Men (Olympic) |
