EVENT 304 Girl Open 50m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Eliza HUMPHREY | 16 | Northampton | 50.53 |
| 3 | 3 | Abbie TUNNICLIFFE | 13 | Derventio | 42.83 |
| 4 | 2 | Scarlett HUMPHREY | 16 | Northampton | 48.30 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Emily LYONS | 14 | Derventio | 41.60 |
| 2 | 7 | Eva LEMMON | 13 | Derventio | 41.34 |
| 3 | 9 | Milly WILSON | 14 | Northampton | 41.15 |
| 4 | 8 | Chloe OUTRAM | 14 | BelperMarlin | 41.20 |
| 5 | 6 | Olivia MARSHALL | 14 | Derventio | 41.50 |
| 6 | 4 | Katy WRIGHT | 12 | Derventio | 41.80 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 11 | Millie CADDEN | 14 | Derventio | 39.99 |
| 2 | 13 | Georgia CADDY | 14 | Derventio | 39.10 |
| 3 | 15 | Ella SHAW | 17 | Royal Wolv | 38.50 |
| 4 | 14 | Katie HEALD | 15 | Derventio | 39.06 |
| 5 | 12 | Rebecca HADLEY | 17 | Co Derby | 39.75 |
| 6 | 10 | Kalinika CWIKLINSKA | 14 | Northampton | 41.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | Aimee MONKS | 16 | Royal Wolv | 36.77 |
| 2 | 20 | Ella EDWARDS | 14 | Northampton | 34.66 |
| 3 | 22 | Louise EDMUNDS | 19 | Royal Wolv | 33.45 |
| 4 | 21 | Jessie-Leigh JENNS | 16 | Royal Wolv | 33.46 |
| 5 | 19 | Louise JONES | 16 | Royal Wolv | 35.01 |
| 6 | 16 | Amber VALLETTA | 14 | Royal Wolv | 36.80 |