EVENT 411 Men Open 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Reuben Tipping | 12 | Northampton | 25:45.00 |
| 2 | 3 | Zachary James Fraser | 13 | Wellingboro | 23:52.13 |
| 3 | 5 | Lucas Krynauw | 14 | Wellingboro | 22:45.00 |
| 4 | 7 | Edward Oscroft | 14 | Northampton | 21:38.60 |
| 5 | 6 | Nikita Bals | 13 | Northampton | 21:45.00 |
| 6 | 4 | Riley Woodward | 14 | Northampton | 23:00.00 |
| 7 | 2 | Michal Wojcik | 14 | Northampton | 24:00.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 9 | Manav Mistry | 16 | Northampton | 20:38.10 |
| 2 | 11 | Bobby Phillips | 18 | Wellingboro | 18:43.57 |
| 3 | 13 | Sam Gray | 16 | Northampton | 18:26.40 |
| 4 | 15 | Benjamin Gibbons | 16 | Northampton | 16:50.10 |
| 5 | 14 | Jack Bignell | 15 | Northampton | 18:15.20 |
| 6 | 12 | Jack Hurry | 14 | Northampton | 18:38.90 |
| 7 | 10 | Elliott Barker | 16 | Northampton | 20:03.70 |
| 8 | 8 | Oliver Horne | 14 | Corby | 20:48.67 |