EVENT 301 Open/Male 09 /Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Noah Penfold | 11 | Tynemouth | 6:46.99 |
| 2 | 3 | Baxter Wigg | 10 | Newcastle | 6:20.00 |
| 3 | 5 | Joseph Smith | 11 | Durham City | 5:50.00 |
| 4 | 4 | Remy Perkins | 11 | Morpeth | 6:13.49 |
| 5 | 2 | William Moore | 9 | Eston | 6:27.91 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Joe Horner | 10 | Eston | 5:42.61 |
| 2 | 9 | Austin Forster | 10 | Co Sund'land | 5:30.00 |
| 3 | 11 | Fraser HENDERSON | 13 | North Tyne | 5:29.62 |
| 4 | 10 | William Grace | 12 | Newcastle | 5:30.00 |
| 5 | 8 | William Proud | 12 | Middlesboro | 5:34.87 |
| 6 | 6 | Samuel Brown | 11 | Tynemouth | 5:42.90 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Adam Bell | 12 | Tynedale | 5:21.40 |
| 2 | 15 | Fynn Kui Williams | 12 | Co Sund'land | 5:16.96 |
| 3 | 17 | Joe Johnson | 12 | Durham City | 5:10.80 |
| 4 | 16 | Jacob Nixon | 13 | Middlesboro | 5:14.90 |
| 5 | 14 | Thomas Northey | 12 | Tynemouth | 5:18.81 |
| 6 | 12 | Finn Orr | 12 | Alnwick Dol | 5:22.66 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 19 | Jacob Redding | 13 | Middlesboro | 4:59.49 |
| 2 | 21 | Ewan Line | 13 | Morpeth | 4:55.31 |
| 3 | 23 | Miles Jarvis | 13 | Morpeth | 4:54.07 |
| 4 | 22 | Tom Holt | 12 | Co Sund'land | 4:54.40 |
| 5 | 20 | Hari Diddee | 13 | Tynemouth | 4:58.80 |
| 6 | 18 | Mason Sainthouse | 11 | Tynemouth | 5:07.40 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 25 | Oliver Brown | 14 | South Tyne | 4:35.31 |
| 2 | 27 | Jamie Lonergan | 15 | Tynedale | 4:33.74 |
| 3 | 29 | Ralph Robson | 18 | Tynedale | 4:23.00 |
| 4 | 28 | Ryan Mills | 16 | Middlesboro | 4:30.35 |
| 5 | 26 | Ben Toward | 14 | South Tyne | 4:34.90 |
| 6 | 24 | Ethan Rutter | 15 | Tynemouth | 4:41.92 |