| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Junya Koga | 50 L Back | Finals | 24.24 |
| 2 | Ryosuke IRIE | 200 L Back | Finals | 1:52.51 |
| 3 | Junya Koga | 50 L Back | Semifinals | 24.29 |
| 4 | Junya Koga | 100 L Back | Finals | 52.26 |
| 5 | Junya Koga | 50 L Back | Prelims | 24.57 |
| 6 | Junya Koga | 100 L Back | Semifinals | 52.39 |
| 7 | Ryosuke IRIE | 200 L Back | Semifinals | 1:54.14 |
| 8 | Ryosuke IRIE | 100 L Back | Prelims | 52.50 |
| 9 | Ryosuke IRIE | 100 L Back | Finals | 52.73 |
| 10 | Ryosuke IRIE | 100 L Back | Semifinals | 52.73 |
| Name | Gold | Silver | Bronze | Score | FINA | |
|---|---|---|---|---|---|---|
| 1 | Ryosuke IRIE | 0 | 1 | 0 | 11413 | 1031.5 |
| 2 | Junya Koga | 1 | 1 | 0 | 8648 | 1042.0 |
| 3 | TAKESHI MATSUDA | 0 | 0 | 1 | 5601 | 978.5 |
| 4 | Ken TAKAKUWA | 0 | 0 | 0 | 5551 | 958.5 |
| 5 | Takuro FUJII | 0 | 0 | 0 | 5547 | 953.7 |
