| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | David ALLEN | 18 | Sevenoaks | 55.37 |
| 1 | 2 | Matt BURROWS | 18 | Sevenoaks | 55.26 |
| 2 | 3 | Bryan DINEV | 17 | Bromley | 54.88 |
| 3 | 4 | Albert BRANCH | 18 | Sevenoaks | 54.23 |
| 4 | 5 | James CLEAVER | 18 | Beckenham | 53.57 |
| 5 | 6 | Oliver POPE | 18 | Thanet Swim | 53.83 |
| 6 | 7 | Matthew ROGERS | 23 | Bromley | 54.61 |
| 7 | 8 | Noah OLADELE-AJOSE | 17 | Bromley | 55.26 |
| 8 | 9 | Archie HAWKINS | 18 | Thanet Swim | 55.36 |
| 9 | 10 | Joseph DOBB | 23 | Bromley | 55.66 |