| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Oscar Langston | 12 | Epping For't | 3:25.91 |
| 2 | 2 | Kai Jun Wai Cheung | 12 | Stevenage | 3:21.71 |
| 3 | 3 | Ching Yau | 12 | Hatfield | 3:15.85 |
| 4 | 4 | Dewi Fordyce | 11 | Berkhamsted | 3:07.07 |
| 5 | 5 | Alfie Larham | 12 | Co Peterboro | 3:12.00 |
| 6 | 6 | Harry Clarke | 12 | West Norfolk | 3:16.81 |
| 7 | 7 | William Nutt | 12 | Dereham | 3:25.68 |
| 8 | 8 | Hugo Koyanagi | 12 | Co St Albans | 3:26.92 |