EVENT 433 Female 15 Yrs/Over 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Isla Sherborne | 15 | BelperMarlin | 1:20.71 |
| 4 | 3 | Lucy Redmond | 15 | Chesterfield | 1:21.47 |
| 5 | 2 | Ruby Currington | 15 | Buxton | 1:18.21 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Naomi Patton | 16 | Swadlincote | 1:16.84 |
| 2 | 17 | Jessica Wass | 16 | Derby Excel | 1:16.27 |
| 3 | 23 | Mimi Fisher | 17 | Ripley | 1:14.02 |
| 4 | 29 | Annabelle Wilkinson | 19 | Chesterfield | 1:05.44 |
| 5 | 26 | Hebe Spooner | 16 | Dronfield | 1:13.35 |
| 6 | 20 | Macy Helps | 17 | Rykneld | 1:15.37 |
| 7 | 14 | Emily Akitt | 15 | Eckington | 1:18.50 |
| 8 | 8 | Jessica Parry | 16 | Long Eaton | 1:27.13 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 6 | Darcie Willis | 17 | Eckington | 1:20.74 |
| 1 | 12 | Amelia Young | 18 | Buxton | 1:16.02 |
| 2 | 18 | Elodie Heron | 15 | Derby Excel | 1:17.33 |
| 3 | 24 | Miley Aram | 15 | Long Eaton | 1:12.87 |
| 4 | 30 | Anna Tyers | 16 | Derby Excel | 1:06.94 |
| 5 | 27 | Isabel Wright | 18 | Long Eaton | 1:09.37 |
| 6 | 21 | Abbie Tunnicliffe | 16 | Long Eaton | 1:13.08 |
| 7 | 15 | Mya Jans | 15 | Chesterfield | 1:15.21 |
| 8 | 9 | Ella Ratliff | 15 | Derby Excel | 1:22.12 |
| 9 | 4 | Annabel Bagshaw | 15 | Buxton | 1:23.71 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 7 | Molly Hamblen | 15 | Etwall | 1:20.99 |
| 1 | 13 | Millie Cadden | 17 | Long Eaton | 1:21.03 |
| 2 | 19 | Paige Dyche | 16 | Swadlincote | 1:16.45 |
| 3 | 25 | Brianna Hansen-Hoare | 17 | Repton | DN:C . |
| 4 | 31 | Georgina Pryor | 26 | Derby Excel | 1:04.25 |
| 5 | 28 | Fenella Wooddisse | 16 | Repton | 1:07.71 |
| 6 | 22 | Lauren Tomlinson | 19 | BelperMarlin | 1:15.56 |
| 7 | 16 | Charlotte Lamb | 16 | Etwall | 1:17.07 |
| 8 | 10 | Isabella Margiotta | 16 | Ashbourne | 1:16.31 |
| 9 | 5 | Isabelle Bridges | 15 | Ripley | 1:24.72 |