| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | Tadayuki•Maruyama | |
| Used name | Tadayuki•Maruyama | |
| Original name | 丸山•忠行 | |
| Born | 29 January 1942 in Matsuyama, Ehime |  JPN |
| Measurements | 180 cm / 82 kg | |
| NOC | Japan | JPN |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1964 Summer Olympics | Boxing | JPN |
Tadayuki Maruyama | |||
| Heavyweight, Men (Olympic) | =9 |
