| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Harry Clarke | 12 | West Norfolk | 42.24 |
| 2 | 2 | Jake Nell | 11 | Tring | 41.81 |
| 3 | 3 | Alfie Larham | 12 | Co Peterboro | 40.89 |
| 4 | 4 | Dewi Fordyce | 11 | Berkhamsted | 39.42 |
| 5 | 5 | Kai Jun Wai Cheung | 12 | Stevenage | 39.98 |
| 6 | 6 | Ching Yau | 12 | Hatfield | 41.78 |
| 7 | 7 | Sebastian Mudge | 12 | Co Peterboro | 41.90 |
| 8 | 8 | Rafe Lawson | 12 | Berkhamsted | 42.38 |