Heats (Declared Winners) Girls 16/17 Yrs 100m Breaststroke
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Sophie Allen | 16 | Lincolnshire | 1:12.86 | | | 35.00 |
| 2. | Emma Bird | 17 | Notts | 1:13.11 | | | 35.12 |
| 3. | Eleanor Brooke | 17 | Scot North | 1:13.94 | | | 35.18 |
| 4. | Victoria Gourlay | 16 | Scot West | 1:15.51 | | | 35.13 |
| 5. | Charlotte Archdeacon | 16 | Shropshire | 1:18.81 | | | 37.39 |
| 6. | Holly Yeo | 17 | Cornwall | 1:18.96 | | | 37.19 |
| 7. | Katherine Rollins | 17 | Worcs | 1:19.07 | | | 37.22 |
| 8. | Rachel Langford | 17 | Northants | 1:19.17 | | | 38.29 |
| 9. | Harriet Lee | 17 | Bedfordshire | 1:19.37 | | | 37.71 |
| 10. | Jessica Coles | 16 | Essex | 1:19.79 | | | 37.84 |
| 11. | Georgia Thomas | 16 | North Wales | 1:20.50 | | | 38.01 |
| 12. | Rebecca Guy | 16 | Gloucs | 1:20.84 | | | 37.61 |
| 13. | Laura Sprague | 16 | Devon | 1:20.99 | | | 38.39 |
| 14. | Sarah Powell | 16 | Ox & N Bucks | 1:21.50 | | | 37.59 |
| 15. | Chloe Pellican | 16 | Norfolk | 1:22.03 | | | 38.38 |
| 16. | Katie Moffatt | 16 | Cumbria | 1:22.41 | | | 38.49 |
| 17. | Lauren Holman | 16 | Dorset | 1:25.20 | | | 39.36 |
| 18. | Emma Paxton | 17 | Cambs | 1:25.89 | | | 39.95 |
