EVENT 204 Girls 10 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Freya COLBERT | 10 | Grantham | 1:33.40 |
| 2 | 3 | Lucy GRANTHAM | 11 | Co Coventry | 1:26.70 |
| 3 | 5 | Emily BATE | 11 | Royal Wolv | 1:26.01 |
| 4 | 7 | Lauren MCCONNACHIE | 11 | Co Coventry | 1:23.18 |
| 5 | 6 | Nadia GROVES | 11 | Co Coventry | 1:25.40 |
| 6 | 4 | Keeley MURCOTT | 11 | Phoenix Y'th | 1:26.13 |
| 7 | 2 | Elena NAKARIAKOVA | 10 | Co Coventry | 1:32.34 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 9 | Ana VICARY | 12 | Co Coventry | 1:21.00 |
| 2 | 11 | Lily GRAHAM | 12 | Co Coventry | 1:19.44 |
| 3 | 13 | Abbie PHILLIPS | 12 | Grantham | 1:18.80 |
| 4 | 15 | Michaela STEPHEN | 11 | Co Derby | 1:17.60 |
| 5 | 14 | Isobel FOSTER | 11 | Co Derby | 1:18.20 |
| 6 | 12 | Sophie ELEY | 13 | Co Derby | 1:18.94 |
| 7 | 10 | Holly LEWIS | 12 | Royal Wolv | 1:20.30 |
| 8 | 8 | Katie HURST | 11 | Co Derby | 1:22.30 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 17 | Saffiyah SHEIKH | 13 | Royal Wolv | 1:16.90 |
| 2 | 31 | Chelsea ELEY | 15 | Co Derby | 1:15.50 |
| 3 | 20 | Leah WEST | 14 | Co Derby | 1:15.20 |
| 4 | 22 | Georgia STIRLAND | 14 | Co Derby | 1:13.51 |
| 5 | 21 | Ellie-May HAYWARD | 14 | Co Coventry | 1:13.57 |
| 6 | 19 | Madeline FOX | 13 | Co Coventry | 1:15.28 |
| 7 | 18 | Abbie GRANTHAM | 14 | Co Coventry | 1:15.83 |
| 8 | 16 | Lauren BARACLOUGH | 14 | Co Coventry | 1:17.20 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 24 | Ella SIMMONITE | 13 | Worksop | 1:11.04 |
| 2 | 26 | Rachel WILSON | 15 | Boldmere | 1:08.88 |
| 3 | 28 | Lucy AMBROSE | 13 | Nova Cent | 1:07.29 |
| 4 | 30 | Leah GOWING | 16 | Co Coventry | 1:05.41 |
| 5 | 29 | Sophie STABLES | 14 | Co Coventry | 1:06.96 |
| 6 | 27 | Sophie CULPIN | 16 | Grantham | 1:07.80 |
| 7 | 25 | Mya AITKEN | 13 | Nuneaton | 1:09.00 |
| 8 | 23 | Krissy TOMLINSON | 13 | Co Derby | 1:11.51 |