| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Swimming (Aquatics) | Shigehiro Takahashi | ||||
| 100 metres Breaststroke, Men (Olympic) | 10 | |||||
| 200 metres Breaststroke, Men (Olympic) | 12 | |||||
| 4 × 100 metres Medley Relay, Men (Olympic) | Japan | 8 | ||||
| 1988 Summer Olympics | Swimming (Aquatics) | Shigehiro Takahashi | ||||
| 200 metres Breaststroke, Men (Olympic) | 10 |