| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Millie TAYLOR | 13 | Cheshunt | |
| 3 | 3 | Rose NASH | 14 | Cheshunt | 3:02.41 |
| 4 | 2 | Phoebe WEIGHT | 14 | Cheshunt | 3:05.19 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Evelyn BULLEN | 14 | Cheshunt | 3:00.27 |
| 2 | 6 | Olivia CROFT | 13 | Cheshunt | 2:51.16 |
| 3 | 8 | Molly BARTUP | 16 | Cheshunt | 2:41.50 |
| 4 | 7 | Maya ROBU | 14 | Cheshunt | 2:49.56 |
| 5 | 5 | Grace SOFOKLEOUS-AMES | 17 | Cheshunt | 2:51.70 |