| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Aidan Cook | 100 L Free | Prelims | 56.10 |
| 2 | Aidan Cook | 100 L Free | Timed Finals | 56.33 |
| 3 | Conor Johnson | 50 L Fly | Prelims | 27.90 |
| 4 | Aidan Cook | 200 L Free | Prelims | 2:07.55 |
| 5 | Aidan Cook | 50 L Free | Prelims | 26.18 |
| 6 | Conor Johnson | 100 L Free | Prelims | 59.05 |
| 7 | Aidan Cook | 50 L Fly | Prelims | 28.41 |
| 8 | Teige Powell | 50 L Free | Prelims | 26.75 |
| 9 | Conor Johnson | 200 L Free | Prelims | 2:11.45 |
| 10 | Aidan Cook | 100 L Back | Timed Finals | 1:07.42 |
| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Kilkenny Swimming Club | 400 L Free Relay | Timed Finals | |
| 2 | Kilkenny Swimming Club | 400 L Medley Relay | Timed Finals | |
| Name | Gold | Silver | Bronze | Score | FINA | |
|---|---|---|---|---|---|---|
| 1 | Aidan Cook | 0 | 0 | 0 | – | 511.1 |
| 2 | Conor Johnson | 0 | 0 | 0 | – | 496.0 |
| 3 | Christopher Carew | 0 | 0 | 0 | – | 446.0 |
| 4 | Teige Powell | 0 | 0 | 0 | – | 441.0 |
| 5 | James Larkin | 0 | 0 | 0 | – | 408.5 |
