| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Miles Munro | 19 | Bath Univ | 24.49 |
| 2 | 3 | Thomas Laxton | 26 | Loughboro Un | 24.28 |
| 3 | 5 | Warren Cannon | 21 | Bath Univ | 24.21 |
| 4 | 7 | Benjamin Proud | 21 | Plymouth Lea | 22.93 |
| 5 | 6 | Adam Barrett | 23 | Loughboro Un | 23.40 |
| 6 | 4 | Sam Horrocks | 21 | Co Manch Aq | 24.27 |
| 7 | 2 | John Blyzinskyj | 20 | NottmLeander | 24.40 |