| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Chloe Ridge | 17 | Wigan BEST | 5:05.56 |
| 4 | 4 | Eve Horton | 18 | Wigan BEST | 5:00.85 |
| 5 | 3 | Iris Hurst | 14 | Warrington W | 5:02.81 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Mollie Fisher | 19 | Co Manch Aq | 4:59.06 |
| 2 | 7 | Evie Cutter | 15 | Wigan BEST | 4:57.48 |
| 3 | 10 | Eloise Rathbone-Jones | 20 | Co Manch Aq | 4:52.65 |
| 4 | 12 | Abbie Roscoe | 15 | Wirral Metro | 4:46.18 |
| 5 | 11 | Katie Lee | 16 | Co Salford | 4:51.40 |
| 6 | 9 | Amy Kenworthy | 18 | Winsford | 4:55.60 |
| 7 | 6 | Sophie Traill | 17 | Stockport Mo | 4:58.10 |