| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Alex YOUSEMAN | 18 | Black Lion | 54.72 |
| 1 | 2 | Vince MOK | 18 | Sevenoaks | 54.57 |
| 2 | 3 | Bryan DINEV | 19 | Bromley | 54.16 |
| 3 | 4 | Ruben COWLEY | 18 | RTW Monson | 53.44 |
| 4 | 5 | Amel DELANIN | 18 | Bromley | 51.93 |
| 5 | 6 | Chengze DUAN | 18 | RTW Monson | 52.81 |
| 6 | 7 | Michael BANKS | 17 | Bromley | 53.99 |
| 7 | 8 | Sebastian WILLIAMS | 18 | Bromley | 54.18 |
| 8 | 9 | Archie HAWKINS | 20 | Thanet Swim | 54.64 |
| 9 | 10 | Oscar COLYER | 17 | Black Lion | 55.53 |