| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Dai Tokairin | 100 L Fly | Finals | 56.63 |
| 2 | Dai Tokairin | 200 L Free | Finals | 1:58.03 |
| 3 | Keichi Nakajima | 200 L Free | Finals | 1:58.83 |
| 4 | Keichi Nakajima | 100 L Fly | Finals | 58.16 |
| 5 | Satoru Miyazaki | 200 L Free | Finals | 1:59.94 |
| 6 | Naohide Yamaguchi | 100 L Breast | Prelims | 1:07.21 |
| 7 | Dai Tokairin | 100 L Fly | Prelims | 58.65 |
| 8 | Naohide Yamaguchi | 100 L Breast | Finals | 1:07.30 |
| 9 | Keichi Nakajima | 200 L IM | Finals | 2:15.61 |
| 10 | Satoru Miyazaki | 200 L Free | Prelims | 2:01.50 |
| Name | Event | Round | Time |
No relays to show |
|---|---|---|---|---|
| Name | Gold | Silver | Bronze | Score | FINA | |
|---|---|---|---|---|---|---|
| 1 | Keichi Nakajima | 1 | 1 | 1 | 7250 | 597.0 |
| 2 | Takuro Yamada | 0 | 0 | 1 | 5255 | 491.0 |
| 3 | Uchu Tomita | 1 | 0 | 0 | 5207 | 465.0 |
| 4 | Dai Tokairin | 2 | 0 | 0 | 4758 | 628.8 |
| 5 | Keiichi Kimura | 0 | 1 | 0 | 4757 | 474.3 |
