Heats (Declared Winners) Girls 16/17 Yrs 100m Butterfly
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Sophie Allen | 16 | Lincolnshire | 1:03.56 | | | 31.08 |
| 2. | Sasha Matthews | 17 | Notts | 1:03.88 | | | 30.34 |
| 3. | Verity Goodey | 16 | Essex | 1:05.69 | | | 30.53 |
| 4. | Stephanie Hackett | 17 | Worcs | 1:07.18 | | | 30.97 |
| 5. | Alexandra Huffen | 16 | North Wales | 1:07.51 | | | 32.12 |
| 6. | Rachel Langford | 17 | Northants | 1:07.71 | | | 32.36 |
| 7. | Chloe Pellican | 16 | Norfolk | 1:08.33 | | | 31.61 |
| 8. | Anne-marie Taylor | 16 | Dorset | 1:08.42 | | | 31.95 |
| 9. | Amy Coats | 16 | Scot West | 1:08.56 | | | 32.24 |
| 10. | Sophie Whittingham | 16 | Shropshire | 1:08.82 | | | 32.24 |
| 11. | Sophie Howe | 17 | Devon | 1:09.03 | | | 32.53 |
| 12. | Lauren Hunter | 16 | Scot North | 1:11.39 | | | 33.12 |
| 13. | Louise King | 17 | Bedfordshire | 1:11.66 | | | 33.29 |
| 14. | Natasha Diment | 17 | Cornwall | 1:11.76 | | | 33.29 |
| 15. | Briony Everett | 16 | Ox & N Bucks | 1:12.55 | | | 33.26 |
| 16. | Gemma Simpson | 16 | Cambs | 1:13.43 | | | 33.78 |
| 17. | Kim Briscoe | 16 | Gloucs | 1:14.34 | | | 32.66 |
| 18. | Claire Braithwaite | 16 | Cumbria | 1:18.60 | | | 35.90 |
