| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Female | |
| Full name | Hiroko•Uchida-Yokoyama | |
| Used name | Hiroko•Uchida-Yokoyama | |
| Original name | 内田-横山•弘子 | |
| Born | 11 February 1936 in ?, Kumamoto |  JPN |
| Measurements | 166 cm / 77 kg | |
| NOC | Japan | JPN |
Personal Best: DT – 50.62 (1961).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Athletics | JPN |
Hiroko Uchida | |||
| Discus Throw, Women (Olympic) | 18 QR | |||||
| 1964 Summer Olympics | Athletics | JPN |
Hiroko Yokoyama | |||
| Discus Throw, Women (Olympic) | 16 QR |
