| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Bobbi Harper | 14 | Northampton | : . |
| 1 | 2 | Mae Singer | 14 | Millfield | : . |
| 2 | 3 | Lily Brabbin | 14 | Co Oxford | : . |
| 3 | 4 | Ruby Griffiths | 13 | Plymouth Lea | : . |
| 4 | 5 | Kennedy Gordon | 14 | Guildford Ct | : . |
| 5 | 6 | Alice Weston | 13 | Wycombe Dist | : . |
| 6 | 7 | Arwen Stephens | 14 | Co Cardiff | : . |
| 7 | 8 | Valeria Giron | 14 | Hatfield | : . |
| 8 | 9 | Eliza Pinkstone | 14 | Stockport Mo | : . |
| 9 | 10 | Katie Heald | 13 | Co Derby | : . |