EVENT 605 Open/Male 10/12 Yrs 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Matas Reklys | 11 | Northampton | 7:08.70 |
| 3 | 4 | Ashton Anderson | 12 | Northampton | 6:35.77 |
| 4 | 6 | Henry Raitt | 12 | Corby | 6:19.30 |
| 5 | 5 | Max Russell | 12 | Nene Valley | 6:22.70 |
| 6 | 3 | Joshua Daggett | 11 | Northampton | 7:00.10 |
| 7 | 1 | Archie Ryder | 11 | Northampton | 7:12.30 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 8 | Dylan Seelig | 12 | Northampton | 6:13.90 |
| 2 | 10 | Oliver Norris | 12 | Rushden | 5:57.38 |
| 3 | 12 | Oscar Pawlowski | 12 | Corby | 5:29.90 |
| 4 | 14 | Milan Rotgers | 12 | Northampton | 5:11.51 |
| 5 | 13 | Henry Richards | 12 | Northampton | 5:26.75 |
| 6 | 11 | Bryn Sensecall | 12 | Daventry | 5:31.67 |
| 7 | 9 | Dominiks Kupcovs | 12 | Daventry | 6:02.10 |
| 8 | 7 | William Stevenson | 12 | Nene Valley | 6:19.11 |