EVENT 314 Girls 15 Yrs/Over 100m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Scarlett Sampson | 15 | Eckington | 1:31.04 |
| 4 | 3 | Isabella Margiotta | 15 | Ashbourne | 1:29.87 |
| 5 | 2 | Ellie Randall | 15 | Chesterfield | 1:33.94 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Millie King | 15 | Co Derby | 1:26.32 |
| 2 | 17 | Isla Perry-Taylor | 16 | BelperMarlin | 1:26.34 |
| 3 | 23 | Isobel Holmes | 15 | Chesterfield | 1:21.31 |
| 4 | 29 | Mabel Walker | 16 | Repton | 1:17.35 |
| 5 | 26 | Megan Oram | 17 | BelperMarlin | 1:19.52 |
| 6 | 20 | Olivia Marshall | 16 | BelperMarlin | 1:26.46 |
| 7 | 14 | Sophie Martin | 16 | Chesterfield | 1:26.53 |
| 8 | 8 | Emily Lyons | 16 | BelperMarlin | 1:31.29 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 6 | Hannah Smith | 16 | Long Eaton | 1:29.95 |
| 1 | 12 | Zoe Boucherat | 16 | Etwall | 1:25.15 |
| 2 | 18 | Isabelle Kimber | 16 | Ripley | 1:24.74 |
| 3 | 24 | Connie Rennard | 15 | Repton | 1:18.69 |
| 4 | 30 | Holly Robinson | 18 | Repton | 1:14.16 |
| 5 | 27 | Sophie Baker | 19 | Chesterfield | 1:22.07 |
| 6 | 21 | Charlotte Roome | 16 | Co Derby | 1:20.45 |
| 7 | 15 | Alice Green | 15 | Swadlincote | 1:24.30 |
| 8 | 9 | Kate Pearson | 17 | Chesterfield | 1:27.55 |
| 9 | 4 | Lois Gill | 15 | Rykneld | 1:34.76 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 7 | Sophie Hawksworth | 16 | Swadlincote | 1:38.68 |
| 1 | 13 | Eva Lemmon | 15 | DerbyPhoenix | 1:26.09 |
| 2 | 19 | Kt Taylor | 17 | Chesterfield | 1:26.90 |
| 3 | 25 | Poppy Mathias | 17 | Repton | 1:19.75 |
| 4 | 31 | Imogen Clark | 24 | Rykneld | 1:08.89 |
| 5 | 28 | Ashleigh Green | 17 | Repton | 1:18.94 |
| 6 | 22 | Phoebe Worgan | 15 | BelperMarlin | 1:20.25 |
| 7 | 16 | Amelie Lincoln | 16 | BelperMarlin | 1:32.47 |
| 8 | 10 | Millie Cadden | 16 | Co Derby | 1:30.27 |
| 9 | 5 | Lilyann Bentham | 15 | Co Derby | 1:30.71 |