| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Zyrell ONG | 15 | Thanet Swim | 1:19.01 |
| 1 | 2 | Ben NEGUS | 15 | Gwich Royals | 1:17.58 |
| 2 | 3 | Samuel JOHNSON-PIUS | 15 | Gwich Royals | 1:16.16 |
| 3 | 4 | Lucas SANDERS | 15 | Sevenoaks | 1:12.90 |
| 4 | 5 | Henry SHEPHERD | 15 | Bromley | 1:08.65 |
| 5 | 6 | Haoming DU | 15 | Bromley | 1:12.47 |
| 6 | 7 | Ayotunde DAUDA | 15 | Saxon Crown | 1:15.60 |
| 7 | 8 | Aleksandr SMOLIYANINOV | 15 | Sevenoaks | 1:17.47 |
| 8 | 9 | Noah DODD | 15 | Black Lion | 1:17.96 |
| 9 | 10 | Riley GILHAM | 15 | Bromley | 1:19.17 |