| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | Brian O'Sullivan | 100 L Free | Prelims | 52.05 |
| 2 | Brian O'Sullivan | 100 L Free | Timed Finals | 52.07 |
| 3 | Brian O'Sullivan | 50 L Fly | Finals | 24.91 |
| 4 | Cillian Colvin | 50 L Fly | Finals | 25.04 |
| 5 | Brian O'Sullivan | 100 L Free | Finals | 52.43 |
| 6 | Brian O'Sullivan | 50 L Fly | Prelims | 25.09 |
| 7 | Cillian Colvin | 100 L Free | Prelims | 52.60 |
| 8 | Brian O'Sullivan | 100 L Fly | Finals | 56.06 |
| 9 | Cillian Colvin | 200 L Free | Finals | 1:54.87 |
| 10 | Cillian Colvin | 100 L Free | Finals | 53.02 |
| Name | Event | Round | Time | |
|---|---|---|---|---|
| 1 | NAC Ashbourne | 400 L Free Relay | Timed Finals | |
| 2 | NAC Ashbourne | 400 L Medley Relay | Timed Finals | |
| 3 | NAC Ashbourne | 400 L Free Relay | Timed Finals | |
| 4 | NAC Ashbourne | 400 L Medley Relay | Timed Finals | |
| Name | FINA | |
|---|---|---|
| 1 | Brian O'Sullivan | 695.3 |
| 2 | Cillian Colvin | 681.8 |
| 3 | Brian O'Sullivan | 629.3 |
| 4 | Isaac Fitzmaurice | 616.3 |
| 5 | Matthew Gardiner | 557.0 |
