| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Bryce WALLIS | 12 | Dartford | 1:25.09 |
| 2 | 2 | Finlay SMITH | 12 | Thanet Swim | 1:23.90 |
| 3 | 3 | Oliver BECKWITH | 12 | MwayMaritime | 1:19.67 |
| 4 | 4 | Lanre DADA | 12 | Maidstone SC | 1:17.41 |
| 5 | 5 | Jago DALEY-ALLISON | 12 | Beckenham | 1:18.61 |
| 6 | 6 | William SEREKI | 12 | Maidstone SC | 1:19.86 |
| 7 | 7 | Azret DELANIN | 12 | Bromley | 1:24.25 |
| 8 | 8 | Harry THOMPSON | 12 | Thanet Swim | 1:26.33 |