EVENT 401 Female 12 Yrs/Over 1500m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Elspeth Dumphy-Wraith | 13 | Matlock | 22:25.27 |
| 4 | 3 | Sophia Lewis | 17 | Derby Excel | 22:47.76 |
| 5 | 2 | Emily McHugh | 16 | Derby Excel | 22:18.62 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 5 | Livi Vickers | 14 | Long Eaton | 20:09.47 |
| 1 | 7 | Olivia Male | 13 | Derby Excel | 19:50.43 |
| 2 | 9 | Olivia Lee | 14 | Derby Excel | 20:58.92 |
| 3 | 11 | Matilda Hase | 17 | Long Eaton | 19:34.26 |
| 4 | 13 | Lucy Cadden | 20 | Derby Excel | 18:11.58 |
| 5 | 12 | Sophie Martin | 17 | Chesterfield | 18:38.77 |
| 6 | 10 | Daisy Tatlow-Turner | 14 | Chesterfield | 19:20.22 |
| 7 | 8 | Connie Bunhejee | 13 | Derby Excel | 20:05.61 |
| 8 | 6 | Eva Lemmon | 16 | DerbyPhoenix | 20:53.40 |
| 9 | 4 | Aydrian Cope | 15 | Ripley | 22:15.86 |