| Final | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Reuben SMITH | 12 | Thanet Swim | 1:22.94 |
| 1 | 2 | William LARTER | 12 | Black Lion | 1:20.73 |
| 2 | 3 | Jake MOK | 12 | White Oak | 1:19.72 |
| 3 | 4 | Harrison WILKINS | 12 | Maidstone SC | 1:16.95 |
| 4 | 5 | Hayden SANDERS | 12 | Gwich Royals | 1:13.67 |
| 5 | 6 | Charlie BRAID | 12 | White Oak | 1:16.94 |
| 6 | 7 | Oliver RATCHFORD | 12 | Black Lion | 1:19.24 |
| 7 | 8 | Oliver CARR | 12 | MwayMaritime | 1:20.61 |
| 8 | 9 | Oleksandr MIALKOVSKYI | 12 | RTW Monson | 1:22.28 |
| 9 | 10 | Henry BURKE | 12 | Sevenoaks | 1:23.53 |