| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Lucy JENKINSON | 12 | Deepings | 4:35.00 |
| 4 | 3 | Eleanor TWINLEY | 13 | Deepings | 3:25.88 |
| 5 | 2 | Annabel SHEPHERD | 11 | Deepings | 3:38.37 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 5 | Grace HOWITT | 15 | Grantham | 3:03.73 |
| 3 | 7 | Harriet MCCORMACK | 14 | Grantham | 2:47.88 |
| 4 | 9 | Corey FARLEY | 15 | Deepings | 2:43.24 |
| 5 | 8 | Liv SPENCER | 17 | Lincoln Vulc | 2:44.59 |
| 6 | 6 | Emily TALKES | 12 | Lincoln Vulc | 2:57.68 |
| 7 | 4 | Lottie Ava FLATTERS | 11 | Deepings | 3:15.82 |