| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 2 | Joshua Williams | 16 | Wycombe Dist | 3:55.26 |
| 2 | 3 | Max Murphy | 18 | Loughboro Un | 3:54.26 |
| 3 | 4 | Cameron Kurle | 21 | Bath Univ | 3:52.71 |
| 4 | 5 | William Ryley | 20 | Bath Univ | 3:49.64 |
| 5 | 6 | Kyle Chisholm | 21 | Stockport Mo | 3:50.19 |
| 6 | 7 | Ryan Reader | 20 | Derventio | 3:53.97 |
| 7 | 8 | Nathan Wells | 20 | Loughboro Un | 3:54.78 |
| 8 | 9 | Alexander Hindle | 16 | Co Birm'ham | 3:55.52 |