| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Taylor O'rourke | 16 | Northampton | : . |
| 1 | 2 | Alice Chan | 16 | Millfield | : . |
| 2 | 3 | Illizane Pinfold | 15 | Co Oxford | : . |
| 3 | 4 | Lucia Grant | 16 | Plymouth Lea | : . |
| 4 | 5 | Constance Mortimer | 14 | Guildford Ct | : . |
| 5 | 6 | Megan Daley | 16 | Wycombe Dist | : . |
| 6 | 7 | Jennifer O'callaghan | 15 | Co Cardiff | : . |
| 7 | 8 | Ela Norton | 15 | Hatfield | : . |
| 8 | 9 | Olivia Herron | 15 | Stockport Mo | : . |
| 9 | 10 | Connie Vanes | 15 | Co Derby | : . |