Heats (Declared Winners) Girls 12/13 Yrs 100m Freestyle
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Jessica THIELMANN | 13 | Northumb&Dur | 58.77 | | | 28.74 |
| 2. | Emma SAUNDERS | 13 | Lancashire C | 58.84 | | | 28.20 |
| 3. | Fiona DONNELLY | 12 | Derbyshi ASA | 59.00 | | | 28.71 |
| 4. | Sian MORGAN | 13 | YorkshireASA | 59.71 | | | 29.12 |
| 5. | Charlotte CLARIDGE | 13 | HertfordsASA | 1:00.26 | | | 29.19 |
| 6. | Sian HARKIN | 13 | South Wales | 1:00.29 | | | 28.79 |
| 7. | Holly RALFE | 13 | KentCounASA | 1:00.69 | | | 29.10 |
| 8. | Yasmin KHERA | 13 | Scotland Eas | 1:00.89 | | | 29.66 |
| 9. | Katie SIMMS | 13 | Middlesex Co | 1:01.15 | | | 29.36 |
| 10. | Katherine SHAW | 12 | Berks&SBucks | 1:01.21 | | | 29.74 |
| 11. | Alexandra HARRISON | 13 | Suffolk ASA | 1:01.32 | | | 29.29 |
| 12. | Natalie MOORE | 13 | DorsetCounty | 1:01.65 | | | 30.19 |
| 13. | Ambah SIMPSON | 12 | CheshireCo | 1:01.72 | | | 29.59 |
| 14. | Bryony CAMPBELL | 13 | SomersetCoun | 1:01.89 | | | 30.06 |
| 15. | Ella HATTON | 13 | Surrey Co AS | 1:01.99 | | | 30.46 |
| 16. | Katie CHAPMAN | 13 | Hampshire Co | 1:02.79 | | | 30.22 |
| 17. | Esme MILLYARD | 13 | SussexCounty | 1:03.27 | | | 30.21 |
| 18. | Charlotte WADE | 13 | EssexCounASA | 1:03.48 | | | 30.53 |
| 19. | Alix PICKEN | 13 | Scotland Wes | 1:03.75 | | | 30.28 |
| 20. | Natasha HOFTON | 13 | Nottinghamsh | 1:04.64 | | | 30.47 |
