EVENT 112 Female MC 09 /Over 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Taliyah MALLETT | 9 | Boston | 1:05.65 |
| 3 | 2 | Skye WARREN | 10 | Lincoln TSA | 57.80 |
| 4 | 3 | Annabel HILLSON | 9 | Grantham | 56.59 |
| 5 | 4 | Honey FLOWER | 10 | Grantham | 54.96 |
| 6 | 5 | Matilda ROTHWELL | 10 | Co Lincoln P | 54.66 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Eva MADDISON | 10 | Co Lincoln P | 54.58 |
| 2 | 7 | Ana BASCARAU | 12 | Boston | 52.74 |
| 3 | 8 | Katie BEASTALL | 11 | Co Lincoln P | 52.65 |
| 4 | 9 | Madeline SURTEES | 12 | Grantham | 50.93 |
| 5 | 10 | Leila MARANDI | 11 | Retford | 49.69 |
| 6 | 11 | Emmeline GLEAVE | 9 | Grantham | 49.66 |
| 7 | 12 | Isabel MAY | 15 | Co Lincoln P | 49.38 |
| 8 | 13 | Juliette KIM | 10 | Grantham | 49.25 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Hollie-Anne CROOK | 10 | Grantham | 47.53 |
| 2 | 15 | Emily SMITH | 15 | Boston | 45.34 |
| 3 | 16 | Emilija IVANOVA | 15 | Boston | 45.21 |
| 4 | 17 | Charlotte WELGEMOED | 13 | Co Lincoln P | 44.58 |
| 5 | 18 | Emilia THORNLEY-PAYNE | 16 | Boston | 42.47 |
| 6 | 19 | Janna SCHUERCH | 14 | Co Lincoln P | 42.13 |
| 7 | 20 | Lucy ABBOTT | 13 | Grantham | 42.06 |
| 8 | 21 | Imogen ROTHWELL | 13 | Co Lincoln P | 41.80 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Luiza KOZIOL | 16 | Lincoln TSA | 41.07 |
| 2 | 25 | Grace HOWITT | 15 | Grantham | 40.47 |
| 3 | 27 | Megan BROWN | 15 | Grantham | 37.31 |
| 4 | 29 | Tiegan GRAY | 18 | Gainsborough | 35.84 |
| 5 | 28 | Annabelle JAY | 13 | Grantham | 37.30 |
| 6 | 26 | Mia PARAPIJONAVICIUTE | 16 | Grantham | 38.39 |
| 7 | 24 | Jade NEEDHAM | 18 | Shepshed | 40.56 |
| 8 | 22 | Ellena HOWITT | 13 | Grantham | 41.07 |