| Final | |||||
| Lane | Comp.No. | Name | YoB | Club | Time |
| 1 | 1 | Henry Gray | 06 | Chelsea&West | 51.06 |
| 2 | 2 | George Snow | 06 | Millfield | 50.88 |
| 3 | 3 | Stefan Krawiec | 06 | East Lothian | 50.53 |
| 4 | 4 | Jacob Mills | 07 | Co Leicester | 50.30 |
| 5 | 5 | Gabriel Shepherd | 08 | Co Leeds | 50.33 |
| 6 | 6 | Nicholas Finch | 06 | Chelsea&West | 50.59 |
| 7 | 7 | Maddox Roberts | 06 | Witham Dolph | 50.94 |
| 8 | 8 | Angelo Giani Contini | 06 | Newcastle | 51.06 |