| Final | |||||
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 1 | William Cole | 99 | Co Bristol | 55.78 |
| 2 | 2 | Max McCusker | 99 | Millfield | 55.59 |
| 3 | 3 | Mason Wilby | 99 | Loughboro Un | 55.21 |
| 4 | 4 | Cameron Brooks-Clarke | 99 | Co Sheffield | 54.56 |
| 5 | 5 | Jacob Peters | 00 | Poole | 55.05 |
| 6 | 6 | Sam Dailley | 01 | Plymouth Lea | 55.49 |
| 7 | 7 | Thomas Beeley | 99 | Aberdeen Per | 55.77 |
| 8 | 8 | Thomas Downs | 99 | Exeter City | 55.95 |