Heats (Declared Winners) Girls 12 Years 100m Breaststroke
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Jasmin Hamer | 12 | Cent Lancs | 1:21.43 | | | 39.09 |
| 2. | Bethan Marks | 12 | Cent Lancs | 1:21.99 | | | 38.77 |
| 3. | Sophie Pyatt | 12 | North Mids | 1:23.24 | | | 40.27 |
| 4. | Caitlin Mcnicholas | 12 | LiverplDASA | 1:23.77 | | | 40.17 |
| 5. | Florie Mcleish | 12 | North Lancs | 1:24.22 | | | 40.29 |
| 6. | Kirby Kavanagh | 12 | Cumbria ASA | 1:25.62 | | | 40.17 |
| 7. | Sadie Smith | 12 | LiverplDASA | 1:27.09 | | | 40.72 |
| 8. | Lauren Pye | 12 | Bolton & Manchester | 1:27.32 | | | 41.76 |
| 9. | Heather Lawson | 12 | Bolton & Manchester | 1:31.53 | | | 43.00 |
| 10. | Catherine Trafford | 12 | Cumbria ASA | 1:32.13 | | | 42.57 |
| Charlotte Bradbury | 12 | North Mids | DNC | | | |
| Lauren Sharkey | 12 | North Lancs | DQ | ST- | 39.96 |