EVENT 105 Female 14/15 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Evelyn Price | 14 | Shropshire | 1:13.24 |
| 2 | 3 | Teyah Rickwood | 15 | Cornwall | 1:11.28 |
| 3 | 5 | Hattie Lever | 15 | Ox & N Bucks | 1:06.87 |
| 4 | 7 | Olivia Greenall | 14 | Norfolk | 1:06.52 |
| 5 | 6 | Olivia O'Mahony | 15 | Cumbria | 1:06.59 |
| 6 | 4 | Grace Edwards | 15 | Staffs | 1:07.82 |
| 7 | 2 | Rowan White | 15 | Northants | 1:12.44 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 9 | Evelyn Toy | 15 | Gloucs | 1:05.34 |
| 1 | 11 | Alyssa Lo | 15 | Leics | 1:04.91 |
| 2 | 13 | Abbie Roscoe | 14 | Cheshire | 1:04.49 |
| 3 | 15 | Annie McLeod | 15 | Bedfordshire | 1:03.58 |
| 4 | 17 | Jessica Huggins | 15 | Dorset | 1:03.35 |
| 5 | 16 | Madison Beth Coull | 15 | Scot North | 1:03.57 |
| 6 | 14 | Olivia Anstey | 15 | Lincolnshire | 1:04.26 |
| 7 | 12 | Mabli Collyer | 15 | SW Wales | 1:04.67 |
| 8 | 10 | Sadie Hunter | 15 | Cambs | 1:05.30 |
| 9 | 8 | Megan Watts | 15 | Wiltshire | 1:05.96 |