| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1960 Summer Olympics | Swimming (Aquatics) | Tatsuo Fujimoto | ||||
| 4 × 200 metres Freestyle Relay, Men (Olympic) | Japan | 2 | Silver | |||
| 1964 Summer Olympics | Swimming (Aquatics) | Tatsuo Fujimoto | ||||
| 100 metres Freestyle, Men (Olympic) | =17 | |||||
| 4 × 100 metres Freestyle Relay, Men (Olympic) | Japan | 4 |