| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Brodie WILLETTS | 14 | Worcester | : . |
| 1 | 2 | Edward SELLAR | 14 | Bromley | : . |
| 2 | 3 | Leo HE | 13 | Camden Swiss | : . |
| 3 | 4 | Louis HAYES | 14 | Sevenoaks | : . |
| 4 | 5 | Cai WARDAUGH | 14 | Co Cardiff | : . |
| 5 | 6 | Luca MCAVOY | 14 | Thanet Swim | : . |
| 6 | 7 | Ossian O'SULLIVAN | 14 | Ealing | : . |
| 7 | 8 | Thomas CURRIE | 14 | Northampton | : . |
| 8 | 9 | Antonio RODRIGUEZ | 14 | Swansea Aq | : . |
| 9 | 10 | Ellis CLEWORTH | 14 | Co Liverpool | : . |