| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | George Sutton | 12 | Southport | : . |
| 1 | 2 | Leonardo Brero | 12 | Camden Swiss | : . |
| 2 | 3 | Demi Alli | 12 | Sevenoaks | : . |
| 3 | 4 | Harry Chaudhury | 11 | Bromley | : . |
| 4 | 5 | Sami Prysor | 12 | Mt Kelly | : . |
| 5 | 6 | Reuben Alty | 11 | teamipswich | : . |
| 6 | 7 | Michael Cabero alonso | 12 | Co Milton K | : . |
| 7 | 8 | Harry Cocks | 11 | Thanet Swim | : . |
| 8 | 9 | Ryan Wall | 12 | Co Cambridge | : . |
| 9 | 10 | Harry Chandler | 11 | Worcester | : . |