| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Leyton BERREY | 14 | UEA Norwich | 1:15.55 |
| 2 | 2 | James NEWTON | 15 | Co Peterboro | 1:14.51 |
| 3 | 3 | Thomas ARKLE | 17 | St Felix Sch | 1:14.28 |
| 4 | 4 | Ethan LAMB | 17 | Hatfield | 1:13.15 |
| 5 | 5 | Nicholas STALLEY | 16 | Modernians | 1:14.28 |
| 6 | 6 | Keenan STOKES | 15 | UEA Norwich | 1:14.36 |
| 7 | 7 | Joshua GRAY | 19 | West Norfolk | 1:14.91 |
| 8 | 8 | Ashley TRENT | 16 | Co Cambridge | 1:15.67 |