| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Shouma Sato | 200 L Breast | Finals | 2:09.56 |
| 2 | Shouma Sato | 200 L Breast | Prelims | 2:10.44 |
| 3 | Yuta Arai | 200 L Breast | Finals | 2:10.84 |
| 4 | Tomoru HONDA | 200 L Fly | Finals | 1:55.31 |
| 5 | Yuta Arai | 200 L Breast | Prelims | 2:12.87 |
| 6 | Tomoru HONDA | 400 L IM | Finals | 4:16.98 |
| 7 | Tomoru HONDA | 200 L Fly | Prelims | 1:57.58 |
| 8 | Tomoru HONDA | 100 L Fly | Prelims | 52.79 |
| 9 | Tomoru HONDA | 100 L Fly | Semifinals | 53.11 |
| 10 | Shouma Sato | 100 L Breast | Semifinals | 1:00.96 |
| Name | Gold | Silver | Bronze | Score | FINA | |
|---|---|---|---|---|---|---|
| 1 | Tomoru HONDA | 0 | 1 | 0 | – | 866.3 |
| 2 | Shouma Sato | 0 | 1 | 0 | – | 850.3 |
| 3 | Yuta Arai | 0 | 0 | 1 | – | 811.0 |
| 4 | Aito YAMAGUCHI | 0 | 0 | 0 | – | 792.5 |
| 5 | Ikuru HIROSHIMA | 0 | 0 | 0 | – | 767.6 |
