| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | George GLOVER | 14 | Worcester | : . |
| 1 | 2 | Sebastian PICKERING | 13 | Bromley | : . |
| 2 | 3 | Alexander CHEN | 14 | Camden Swiss | : . |
| 3 | 4 | Jacob HUDSON | 14 | Sevenoaks | : . |
| 4 | 5 | Rhydian ARCH | 13 | Co Cardiff | : . |
| 5 | 6 | Conor WRIGHT | 14 | Thanet Swim | : . |
| 6 | 7 | Max LOMBARDO | 14 | Ealing | : . |
| 7 | 8 | Harvey FREEMAN | 14 | Northampton | : . |
| 8 | 9 | Aneurin DAVIES | 14 | Swansea Aq | : . |
| 9 | 10 | Ellis CLEWORTH | 14 | Co Liverpool | : . |