| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Female | |
| Full name | Masako•Watanabe | |
| Used name | Masako•Watanabe | |
| Original name | 渡邉•正子 | |
| Born | 6 August 1971 in ?, Saitama |  JPN |
| Measurements | 167 cm / 65 kg | |
| Affiliations | Taiyo Yuden | |
| NOC | Japan | JPN |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1996 Summer Olympics | Softball (Baseball/Softball) | JPN |
Masako Watanabe | |||
| Softball, Women (Olympic) | Japan | 4 |
