| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Donatas Dragasius | 18 | Mt Kelly | 4:30.17 |
| 1 | 2 | Filip Nowacki | 15 | TigersJersey | 4:29.43 |
| 2 | 3 | Harry Hewitt | 17 | Millfield | 4:27.36 |
| 3 | 4 | Sam Williamson | 18 | Bath Univ | 4:26.87 |
| 4 | 5 | Finn Broekhoven | 16 | Plymouth Lea | 4:25.89 |
| 5 | 6 | Llewellyn Porter | 14 | Camden Swiss | 4:26.56 |
| 6 | 7 | Oscar Dodds | 16 | Co Leicester | 4:27.22 |
| 7 | 8 | Elijah Kendrick | 18 | Swansea Uni | 4:29.14 |
| 8 | 9 | Oliver Pope | 17 | Thanet Swim | 4:29.52 |
| 9 | 10 | Thomas Wilkinson | 16 | Co Sheffield | 4:30.28 |