| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Scarlett OMAND | 11 | Cheshunt | |
| 3 | 3 | Rose NASH | 14 | Cheshunt | 2:59.65 |
| 4 | 2 | BETSY BUTCHER | 11 | Cheshunt | 3:20.45 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Lois GODDARD | 14 | Cheshunt | 2:56.49 |
| 2 | 7 | Maya ROBU | 14 | Cheshunt | 2:38.02 |
| 3 | 9 | Mia NELSON | 13 | Cheshunt | 2:27.75 |
| 4 | 8 | Martha BENTLEY | 15 | Cheshunt | 2:36.58 |
| 5 | 6 | Grace SOFOKLEOUS-AMES | 17 | Cheshunt | 2:44.28 |
| 6 | 4 | Olivia CROFT | 13 | Cheshunt | 2:57.59 |