Female 12/13 100m Butterfly - Heats (Declared Winners)
Full Results
| Place | Name | YoB | Club | | Time | | | WA Pts | | 50 |
| 1. | Janie Finch | (10) | Leics | | 1:05.88 | | | 568 | | 30.59 |
| 2. | Akemi Futatsugi | (10) | Gloucs | | 1:08.43 | | | 507 | | 32.34 |
| 3. | Kalila Smith | (10) | Scot North | | 1:08.47 | | | 506 | | 31.28 |
| 4. | Megan Daniel | (10) | Cornwall | | 1:09.06 | | | 493 | | 32.17 |
| 5. | Iris Hurst | (10) | Cheshire | | 1:09.16 | | | 491 | | 31.30 |
| 6. | Ivy Manning | (10) | Ox & N Bucks | | 1:09.24 | | | 490 | | 31.34 |
| 7. | Macey Brough | (11) | Staffs | | 1:10.37 | | | 466 | | 32.47 |
| 8. | Layla Wareing | (11) | Dorset | | 1:10.73 | | | 459 | | 33.31 |
| 9. | Lexie Sandiford | (11) | Bedfordshire | | 1:11.88 | | | 438 | | 32.56 |
| 10. | Mali Roberts | (10) | SW Wales | | 1:11.94 | | | 436 | | 33.61 |
| 11. | Betina Puszkarska | (10) | Wiltshire | | 1:12.45 | | | 427 | | 33.70 |
| 12. | Orna Lett | (10) | Northants | | 1:12.74 | | | 422 | | 33.39 |
| 13. | Evie Greenhalf | (10) | Norfolk | | 1:13.53 | | | 409 | | 33.59 |
| 14. | Maisie O'Mahony | (10) | Cumbria | | 1:14.16 | | | 398 | | 34.72 |
| 15. | Daisy Berry | (10) | Shropshire | | 1:14.86 | | | 387 | | 35.47 |
| 16. | Sophie Cooksey | (10) | Lincolnshire | | 1:16.64 | | | 361 | | 34.44 |
| 17. | Kitty Lamb | (11) | Cambs | | 1:17.02 | | | 356 | | 37.19 |
