EVENT 308 Female 09 Yrs/Over 100m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Florence HARPER | 13 | Grantham | |
| 4 | 2 | Norahh MOE-AUNG | 12 | Grantham | |
| 5 | 3 | Beatrix SHEPPARD | 10 | Grantham | |
| 6 | 4 | Maja BALL | 10 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Bethany MEAKIN | 12 | Grantham | |
| 2 | 6 | Martha WOOD | 10 | Grantham | 1:51.69 |
| 3 | 7 | Chloe GOACHER | 13 | Grantham | 1:51.31 |
| 4 | 8 | Esme EVANS | 12 | Grantham | 1:49.39 |
| 5 | 9 | Olivia CHARITY | 14 | Grantham | 1:47.02 |
| 6 | 10 | Evangeline KINNEAR | 13 | Grantham | 1:41.69 |
| 7 | 11 | Ella KHAMA | 12 | Grantham | 1:35.10 |
| 8 | 12 | Madeline SURTEES | 14 | Grantham | 1:33.03 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Isabelle CLAYTON | 14 | Grantham | 1:30.20 |
| 2 | 14 | Emmeline GLEAVE | 11 | Grantham | 1:29.89 |
| 3 | 15 | Hollie-Ann CROOK | 12 | Grantham | 1:25.80 |
| 4 | 16 | Octavia SHEARN | 14 | Grantham | 1:24.61 |
| 5 | 17 | Honey FLOWER | 12 | Grantham | 1:24.03 |
| 6 | 18 | Isobel ALLSOP | 16 | Grantham | 1:21.31 |
| 7 | 19 | Lucy ABBOTT | 14 | Grantham | 1:19.17 |
| 8 | 20 | Ruby TALKES | 10 | Grantham | 1:16.16 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 22 | Amy TAYLOR | 15 | Grantham | 1:14.90 |
| 2 | 24 | Emilie WEBB | 16 | Grantham | 1:10.28 |
| 3 | 26 | Ellena HOWITT | 15 | Grantham | 1:09.07 |
| 4 | 28 | Grace MACDONALD | 17 | Grantham | 1:05.68 |
| 5 | 27 | Emily TALKES | 14 | Grantham | 1:08.80 |
| 6 | 25 | Chloe HOPKINSON | 21 | Grantham | 1:09.68 |
| 7 | 23 | Isla GRAY | 16 | Grantham | 1:13.61 |
| 8 | 21 | Lucy WILLATTS | 15 | Grantham | 1:16.07 |