| B Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Callum Smart | 17 | Co Oxford | 1:05.25 |
| 1 | 2 | Robert Cowley | 20 | Co Manch Aq | 1:04.85 |
| 2 | 3 | Gregory Butler | 17 | Co Derby | 1:04.54 |
| 3 | 4 | Marcus Gardiner | 20 | Plymouth Lea | 1:04.37 |
| 4 | 5 | Jasper Lye | 18 | Co Bristol | 1:03.81 |
| 5 | 6 | T Mackay-Champion | 20 | Co Oxford | 1:04.18 |
| 6 | 7 | Adam Chillingworth | 20 | Plymouth Lea | 1:04.53 |
| 7 | 8 | Neil Redman | 23 | Portsmouth N | 1:04.78 |
| 8 | 9 | Oliver Taverner | 16 | Mt Kelly | 1:05.21 |
| 9 | 10 | Connor Bryan | 17 | Co Oxford | 1:05.51 |