EVENT 201 Open/Male 09 /Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Jake Shelvey | 10 | Leamington | 6:14.73 |
| 4 | 2 | Oliver Trenwith | 11 | Corby | 6:05.87 |
| 5 | 3 | Jarrad Staniforth | 11 | Co Coventry | 6:04.75 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Dylan Lewis | 12 | Co Coventry | 5:40.48 |
| 2 | 5 | Aiden Kill | 13 | Co Coventry | 5:23.44 |
| 3 | 6 | Nathan McQuade | 13 | Cosacss | 5:22.63 |
| 4 | 7 | Enzo Piatkowski | 12 | Co Coventry | 5:12.10 |
| 5 | 8 | Edvardas Gudziunas | 13 | Solihull | 4:59.54 |
| 6 | 9 | Samuel Mann | 14 | Leamington | 4:57.66 |
| 7 | 10 | Alexander Pattison | 14 | West Norfolk | 4:56.70 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Bailey Dutton | 14 | Leamington | 4:53.06 |
| 2 | 14 | Joseph Symons | 14 | Co Coventry | 4:47.04 |
| 3 | 16 | Nathan Yeaman | 17 | West Norfolk | 4:40.96 |
| 4 | 18 | Laurenzio Ciolan | 14 | Corby | 4:32.60 |
| 5 | 17 | Ilya Certovs | 14 | Co Coventry | 4:33.70 |
| 6 | 15 | Oliver Horne | 15 | Corby | 4:42.83 |
| 7 | 13 | Morgan Jenkins | 13 | Leamington | 4:48.12 |
| 8 | 11 | Jacob Jenkins | 14 | Norwich Swan | 4:56.56 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Max Mahony | 15 | Co Coventry | 4:28.82 |
| 2 | 22 | Max Smith | 17 | Co Coventry | 4:24.06 |
| 3 | 24 | Oscar Hunter | 15 | Norwich Swan | 4:18.50 |
| 4 | 26 | Zac Baughan-Withington | 14 | KingstonHull | 4:15.76 |
| 5 | 25 | Matthew Holland | 26 | Wolv'hampton | 4:16.43 |
| 6 | 23 | Ethan Soppett-Moss | 15 | Corby | 4:23.10 |
| 7 | 21 | Alexander Kabat | 15 | Banbury | 4:26.12 |
| 8 | 19 | Joseph Waring | 14 | Leamington | 4:29.95 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 28 | Charlie Rounce | 17 | Leamington | 4:15.20 |
| 2 | 30 | Tyler Hollyman | 17 | Corby | 4:10.20 |
| 3 | 32 | Archie Dandy | 16 | EllesmereCSA | 4:04.66 |
| 4 | 34 | James Raw | 17 | EllesmereCSA | 3:55.30 |
| 5 | 33 | Dominic Simpson | 18 | Nuneaton | 4:04.58 |
| 6 | 31 | Sami Prysor | 16 | EllesmereCSA | 4:08.90 |
| 7 | 29 | Cameron McQuade | 17 | Cosacss | 4:11.99 |
| 8 | 27 | Ethan Krol | 15 | Co Coventry | 4:15.30 |