| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Shane Ryan | 100 L Free | Prelims | 48.68 |
| 2 | Shane Ryan | 100 L Back | Finals | 53.96 |
| 3 | Shane Ryan | 100 L Back | Prelims | 54.03 |
| 4 | Shane Ryan | 100 L Free | Finals | 49.04 |
| 5 | Shane Ryan | 50 L Fly | Prelims | 23.85 |
| 6 | Brian O'Sullivan | 50 L Fly | Prelims | 24.59 |
| 7 | Brian O'Sullivan | 50 L Fly | Finals | 24.69 |
| 8 | Brian O'Sullivan | 100 L Free | Prelims | 51.66 |
| 9 | Shane Ryan | 50 L Free | Prelims | 23.04 |
| 10 | Brian O'Sullivan | 100 L Free | Finals | 51.76 |
| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | National Centre Nac | 400 L Free Relay | Timed Finals | |
| 2 | National Centre Nac | 400 L Medley Relay | Timed Finals | |
| Name | Gold | Silver | Bronze | Score | FINA | |
|---|---|---|---|---|---|---|
| 1 | Shane Ryan | 2 | 0 | 0 | 20 | 840.5 |
| 2 | Isaac Fitzmaurice | 0 | 0 | 0 | 12 | 598.5 |
| 3 | Matthew Gardiner | 0 | 0 | 1 | 8 | 563.1 |
| 4 | Brian O'Sullivan | 0 | 0 | 1 | 7 | 724.8 |
| 5 | Fionn Camacho Lenihan | 0 | 0 | 0 | 1 | 559.0 |
