| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Herbie BINGHAM | 14 | Chelsea&West | : . |
| 1 | 2 | Matthew NEWSON | 14 | Co Peterboro | : . |
| 2 | 3 | Aarian LALLY | 14 | Hillingdon | : . |
| 3 | 4 | Billy LEE-KNOWLES | 14 | Ealing | : . |
| 4 | 5 | Ali SETTERFIELD | 13 | Thanet Swim | : . |
| 5 | 6 | Eddison HAMMOND | 14 | Sevenoaks | : . |
| 6 | 7 | Daniel MURTAGH | 14 | Hatfield | : . |
| 7 | 8 | Sam ELLIS | 13 | Co Liverpool | : . |
| 8 | 9 | Connor SMART | 14 | Swansea Aq | : . |
| 9 | 10 | Oliver CARLESS | 13 | Boldmere | : . |