Girls 12/13 Yrs 100m Butterfly - Heats (Declared Winners)
Full Results
| Place | Name | AaD | Club | | Time | | R.T. | FINA Pt | | 50 |
| 1. | Eva Okaro | 13 | Kent | | 1:01.92 | | | 685 | | - |
| 2. | Jessica Lawton | 13 | Somerset | | 1:03.49 | | | 636 | | - |
| 3. | Naomi Parker | 13 | N & Durham | | 1:05.67 | | | 575 | | - |
| 4. | Lottie Roberts | 12 | Surrey | | 1:06.24 | | | 560 | | - |
| 5. | Isla Williams | 13 | Yorkshire | | 1:06.43 | | | 555 | | - |
| 6. | Alice Mackie | 13 | Scot East | | 1:07.12 | | + 0.71 | 538 | | 30.96 |
| 7. | Erika Pasakinskaite | 13 | Essex | | 1:07.24 | | | 535 | | - |
| 8. | Jessica Pennifold | 13 | Lancashire | | 1:07.34 | | | 533 | | - |
| 9. | Millie Duncan | 13 | Cheshire | | 1:07.72 | | | 524 | | - |
| 10. | Stella McCardie | 13 | Scot West | | 1:07.92 | | | 519 | | 31.87 |
| 11. | Blythe Kinsman | 12 | Devon | | 1:08.15 | | + 0.63 | 514 | | 31.87 |
| 12. | Ava Lambropoulos | 12 | Middlesex | | 1:08.37 | | + 0.69 | 509 | | 32.97 |
| 13. | Despoina Giannakaki | 12 | Ox & N Bucks | | 1:08.40 | | | 508 | | 32.56 |
| 14. | Matilda Bogle | 13 | Suffolk | | 1:08.85 | | + 0.79 | 499 | | 33.66 |
| 15. | Alice Weston | 13 | Berks&SBucks | | 1:09.34 | | | 488 | | - |
| 16. | Eja Coe | 13 | Derbyshire | | 1:09.44 | | + 0.70 | 486 | | 32.42 |
| 17. | Phoebe Williams-Jones | 13 | Swim Wales E | | 1:09.57 | | | 483 | | - |
| 18. | Brooke Illingworth | 13 | Shropshire | | 1:10.02 | | + 0.74 | 474 | | 33.15 |
| 19. | Evie Johnson | 12 | Notts | | 1:10.44 | | + 0.67 | 465 | | 32.56 |
| 20. | Isabel Sharp | 13 | Northants | | 1:14.20 | | + 0.76 | 398 | | 33.96 |
