Girls 15/UN 100m Butterfly - Heats (Declared Winners)
Full Results
| Place | Name | YoB | Club | | Time | | R.T. | | | 50 |
| 1. | Isobel GRANT | (98) | Co Sheffield | | 1:02.90 | | + 0.85 | | | 29.39 |
| 2. | Lucy Thornton | (99) | Ealing | | 1:04.30 | | + 0.83 | | | 29.91 |
| 3. | Emma Cain | (99) | Millfield | | 1:05.83 | | + 0.71 | | | 31.15 |
| 4. | Charlotte GEORGE | (99) | Woking | | 1:06.24 | | + 0.79 | | | 30.56 |
| 5. | Zena Alkelaby | (98) | Co Cardiff | | 1:06.31 | | + 0.71 | | | 30.75 |
| 6. | Kayleigh Parker | (00) | TauntonDeane | | 1:07.36 | | + 0.75 | | | 31.11 |
| 7. | Bethany Saunders | (99) | Northampton | | 1:07.84 | | + 0.89 | | | 31.44 |
| 8. | Emily DOWDING | (98) | teamipswich | | 1:09.37 | | + 0.76 | | | 32.15 |
| 9. | Yasmin Boff | (00) | Co Coventry | | 1:09.71 | | + 0.80 | | | 32.72 |
| 10. | Hannah KNIGHT | (99) | Ellesmere Co | | 1:09.78 | | + 0.24 | | | 32.07 |
