| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Ryuya MURA | 200 L Breast | Semifinals | 2:08.27 |
| 2 | Ryuya MURA | 200 L Breast | Finals | 2:08.42 |
| 3 | Daiya SETO | 200 L IM | Finals | 1:56.22 |
| 4 | Ryosuke IRIE | 100 L Back | Prelims | 52.99 |
| 5 | Ryuya MURA | 200 L Breast | Prelims | 2:09.00 |
| 6 | Ryosuke IRIE | 100 L Back | Finals | 53.05 |
| 7 | Shouma Sato | 200 L Breast | Semifinals | 2:09.04 |
| 8 | Daiya SETO | 200 L IM | Semifinals | 1:56.86 |
| 9 | Ryosuke IRIE | 100 L Back | Prelims | 53.20 |
| 10 | Ryosuke IRIE | 100 L Back | Semifinals | 53.21 |
| Name | Gold | Silver | Bronze | Score | FINA | |
|---|---|---|---|---|---|---|
| 1 | Tomoru HONDA | 0 | 1 | 0 | 17 | 923.0 |
| 2 | Daiya SETO | 0 | 0 | 0 | 15 | 917.7 |
| 3 | Kosuke HAGINO | 0 | 0 | 0 | 13 | 916.0 |
| 4 | Ryosuke IRIE | 0 | 0 | 0 | 12 | 917.7 |
| 5 | Ryuya MURA | 0 | 0 | 0 | 12 | 914.5 |
