| Final | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Maxwell George | 16 | Hatfield | 54.82 |
| 1 | 2 | Daniel Donovan | 16 | Guildford Ct | 54.68 |
| 2 | 3 | Joseph Sadler | 16 | Nova Cent'n | 54.63 |
| 3 | 4 | Charley Langford | 16 | Thanet Swim | 54.33 |
| 4 | 5 | Silas Mendez | 16 | Reading | 53.66 |
| 5 | 6 | Reuben Edwards | 16 | RTW Monson | 53.92 |
| 6 | 7 | Thomas Woolley | 16 | Bromley | 54.54 |
| 7 | 8 | Dominic Bools | 16 | Radford | 54.66 |
| 8 | 9 | Patrick Heeks | 16 | Pershore | 54.74 |
| 9 | 10 | James Speers | 16 | Basildon Ph | 54.97 |