EVENT 308 Girls 10 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 2 | Alana TIMMS | 11 | Co Coventry | 1:26.30 |
| 3 | 4 | Rebecca BURDEN | 12 | Co Coventry | 1:21.55 |
| 4 | 6 | Olivia HALL | 12 | Co Coventry | 1:20.56 |
| 5 | 5 | Ana VICARY | 12 | Co Coventry | 1:20.68 |
| 6 | 3 | Erin MOLLOY | 12 | Co Birm'ham | 1:22.50 |
| 7 | 1 | Niamh BEVAN | 11 | Co Birm'ham | 1:27.85 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 8 | Matilda NEAL | 11 | Co Birm'ham | 1:19.97 |
| 2 | 10 | Georgia EMENTON | 13 | Co Coventry | 1:18.10 |
| 3 | 12 | Alesha LEE | 12 | Havant & Wat | 1:16.85 |
| 4 | 14 | Amy HAARBURGER | 17 | Thame | 1:14.00 |
| 5 | 13 | Eva VICARY | 14 | Co Coventry | 1:14.71 |
| 6 | 11 | Sarah CHAPMAN | 14 | Leamington | 1:17.10 |
| 7 | 9 | Alisha STEPHENSON | 12 | Co Birm'ham | 1:18.29 |
| 8 | 7 | Sophie NEGRINE | 11 | Co Birm'ham | 1:20.07 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 16 | Abbie GRANTHAM | 14 | Co Coventry | 1:12.30 |
| 2 | 18 | Lucy GLOVER | 16 | Co Coventry | 1:11.53 |
| 3 | 20 | Bethan HINETT | 15 | Co Coventry | 1:10.99 |
| 4 | 22 | Kate DAVIES | 14 | Co Birm'ham | 1:09.17 |
| 5 | 21 | Megan GIBSON | 14 | Co Coventry | 1:09.38 |
| 6 | 19 | Lauren JOHNSTONE | 12 | Havant & Wat | 1:11.40 |
| 7 | 17 | Olivia BURDEN | 14 | Havant & Wat | 1:11.72 |
| 8 | 15 | Sarah WARWOOD | 17 | Co Coventry | 1:12.44 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 24 | Brittany HORTON | 16 | Co Birm'ham | 1:07.80 |
| 2 | 26 | Rebecca KAMAU | 15 | Co Birm'ham | 1:06.80 |
| 3 | 28 | Chloe FINCH | 16 | Co Birm'ham | 1:05.54 |
| 4 | 30 | Leah GOWING | 17 | Co Coventry | 1:05.36 |
| 5 | 29 | Sophie STABLES | 14 | Co Coventry | 1:05.54 |
| 6 | 27 | Givenchy SNEEKES | 17 | Co Birm'ham | 1:05.64 |
| 7 | 25 | Isobel GRIFFITHS | 15 | Co Birm'ham | 1:06.86 |
| 8 | 23 | Abigail HUMPHREYS | 16 | Co Coventry | 1:08.06 |