Heats (Declared Winners) Girls 12/13 Yrs 100m Butterfly
| Place | Name | AaD | Club | Time | | | 50 |
| 1. | Charlotte BRYAN | 12 | North Wales | 1:06.00 | | | 31.28 |
| 2. | Bethany COGGINS | 13 | Norfolk Coun | 1:07.15 | | | 31.73 |
| 3. | Sally WHYBRA | 13 | DevonCounASA | 1:07.78 | | | 32.18 |
| 4. | Claire ASHMORE | 13 | Leics ASA | 1:07.87 | | | 32.21 |
| 5. | Zoe DAVIES | 13 | StaffordsASA | 1:09.24 | | | 31.82 |
| 6. | Nia WILLIAMS | 13 | Shropshi ASA | 1:09.29 | | | 32.75 |
| 7. | Sophie PURNELL | 13 | WiltshireASA | 1:09.82 | | | 33.10 |
| 8. | Ashleigh DALE | 13 | Cumbria ASA | 1:11.14 | | | 32.37 |
| 9. | Charlotte MILLIGAN | 12 | NorthampsASA | 1:11.34 | | | 33.41 |
| 10. | Hayley BURTON | 13 | Lincolns ASA | 1:12.02 | | | 34.16 |
| 11. | Natalie HARBISHER | 13 | Cornwall ASA | 1:12.06 | | | 33.74 |
| 12. | Beth JACKSON | 13 | Worcester Co | 1:13.24 | | | 33.64 |
| 13. | Corrine JAMES | 13 | Oxfords&NBuc | 1:13.90 | | | 34.25 |
| 14. | Rebecca DONALDSON | 13 | Scotland Mid | 1:16.36 | | | 34.52 |
| 15. | Georgie FREEMAN | 13 | Cambridgeshi | 1:16.61 | | | 34.93 |
| 16. | Alix SWINHOE | 13 | Warwicks ASA | 1:17.20 | | | 36.20 |
| 17. | Zoe BROWNING | 13 | Gloucestersh | 1:18.53 | | | 35.93 |
| 18. | Leah NEARY | 13 | Bedfords ASA | 1:20.00 | | | 38.05 |
