| B Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Jacob BROWN | 07 | Tadcaster | 4:19.68 |
| 2 | 2 | Findlay CORDLE | 07 | Repton | 4:10.31 |
| 3 | 3 | Henrique MASCARENHAS | 01 | Bath Univ | 4:08.84 |
| 4 | 4 | Ben HARRISON | 00 | Loughboro Un | 4:05.19 |
| 5 | 5 | Ethan ELLIS-SIXSMITH | 03 | Co Sheffield | 4:06.62 |
| 6 | 6 | Max RUSSELL | 06 | Co Sheffield | 4:09.32 |
| 7 | 7 | Thomas WILKINSON | 06 | Chesterfield | 4:12.54 |
| 8 | 8 | Joshua HARRIS | 01 | Tadcaster | 4:27.52 |