EVENT 202 Female 15 Yrs/Over 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 2 | 2 | Isabella Margiotta | 15 | | Ashbourne | 1:16.02 |
| 3 | 4 | Millie Cadden | 16 | | Long Eaton | 1:14.26 |
| 4 | 6 | Macy Helps | 16 | | Rykneld | 1:14.04 |
| 5 | 5 | Eva Mathias | 15 | | Repton | 1:14.10 |
| 6 | 3 | Jessica Wass | 15 | | Derby Excel | 1:14.47 |
| 7 | 1 | Charlotte Lamb | 15 | | Etwall | 1:17.23 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 8 | Paige Dyche | 15 | | Swadlincote | 1:12.21 |
| 2 | 10 | Lauren Tomlinson | 18 | | BelperMarlin | 1:11.20 |
| 3 | 12 | Lucy Cadden | 19 | | Derby Excel | 1:10.48 |
| 4 | 14 | Kate Pearson | 17 | | Chesterfield | 1:09.50 |
| 5 | 13 | Mimi Fisher | 16 | | Ripley | 1:10.15 |
| 6 | 11 | Hebe Spooner | 15 | | Dronfield | 1:10.98 |
| 7 | 9 | Abbie Tunnicliffe | 15 | | Long Eaton | 1:11.58 |
| 8 | 7 | Jenna Bevan | 15 | | BelperMarlin | 1:12.40 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 16 | Brianna Hansen-Hoare | 16 | | Repton | 1:09.29 |
| 2 | 18 | Mabli Collyer | 15 | | Repton | 1:08.20 |
| 3 | 20 | Isabel Wright | 17 | | Long Eaton | 1:07.65 |
| 4 | 22 | Fenella Wooddisse | 15 | | Repton | 1:07.40 |
| 5 | 21 | Connie Palmer | 16 | | Repton | 1:07.50 |
| 6 | 19 | Olivia Hann | 17 | | Repton | 1:07.98 |
| 7 | 17 | Megan Neave | 20 | S14 | Repton | 1:08.60 |
| 8 | 15 | Millie King | 15 | | Derby Excel | 1:09.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club | Time |
| 1 | 24 | Erin Gent | 15 | | Repton | 1:06.60 |
| 2 | 26 | Ashleigh Green | 17 | | Repton | 1:05.50 |
| 3 | 28 | Charlotte Hall | 21 | | Etwall | 1:04.94 |
| 4 | 30 | Annabelle Wilkinson | 18 | | Chesterfield | 1:02.14 |
| 5 | 29 | Elise Collins | 21 | | Chesterfield | 1:04.25 |
| 6 | 27 | Holly Robinson | 18 | | Repton | 1:05.20 |
| 7 | 25 | Anna Tyers | 15 | | Derby Excel | 1:06.10 |
| 8 | 23 | Eleanor Broughton | 17 | | Repton | 1:07.30 |