| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Bryan DINEV | 18 | Bromley | 59.81 |
| 1 | 2 | Finley GILHAM | 17 | Bromley | 59.72 |
| 2 | 3 | Henry NORMAN | 17 | Bromley | 59.13 |
| 3 | 4 | Tom HAWKINS | 17 | RTW Monson | 58.20 |
| 4 | 5 | Chengze DUAN | 17 | RTW Monson | 56.10 |
| 5 | 6 | Denys MIALKOVSKYI | 17 | RTW Monson | 57.69 |
| 6 | 7 | Ruben COWLEY | 17 | RTW Monson | 58.93 |
| 7 | 8 | Hayden ANNAN | 17 | RTW Monson | 59.52 |
| 8 | 9 | Liam HAMP | 18 | Thanet Swim | 59.76 |
| 9 | 10 | Daniel OLIVER | 19 | Sevenoaks | 1:00.43 |