| Heat Number - 1 | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 2 | 1 | Jonah HILLERBY | 11 | SB7 | Gosport | |
| 3 | 3 | Benjamin POPE | 12 | SB8 | Havant & Wat | 1:04.60 |
| 4 | 5 | Andrew KEELER | 20 | SB14 | Devonport | 39.41 |
| 5 | 4 | Dominic REDPATH | 14 | SB8 | Gosport | 53.56 |
| 6 | 2 | Tyler WALKER | 13 | SB7 | Gloucester | 1:16.46 |