EVENT 109 Girls 11 Yrs/Under 50m Butterfly - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Olivia Hawkins | 9 | BelperMarlin | 1:30.00 |
| 4 | 4 | Thea Kalwak | 10 | Repton | 1:10.90 |
| 5 | 3 | Tallulah Lewis | 9 | BelperMarlin | 1:20.00 |
| 6 | 1 | Willow Barrett | 10 | Ilkeston | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Imogen Hackett | 11 | Repton | 1:06.83 |
| 2 | 8 | Ruby Hill | 11 | Ilkeston | 1:02.86 |
| 3 | 10 | Matilda Thomas | 11 | Derby Excel | 1:00.08 |
| 4 | 13 | Olivia Jones | 10 | Matlock | 1:00.00 |
| 5 | 11 | Annie Bold | 9 | BelperMarlin | 1:00.00 |
| 6 | 9 | Eve O'Donnell | 10 | DerbyPhoenix | 1:02.13 |
| 7 | 7 | Brooke Torry | 11 | Eckington | 1:05.00 |
| 8 | 5 | Nancy Bennett | 9 | Hucknall | 1:10.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Katie Bullock | 10 | Long Eaton | 58.78 |
| 2 | 17 | Madeleine Wiggins | 9 | Lichfield | 55.00 |
| 3 | 19 | Hannah John | 10 | Repton | 54.08 |
| 4 | 21 | Charlotte Weaver | 11 | Repton | 53.79 |
| 5 | 20 | Matilda Shawcross | 9 | Bakewell SC | 54.03 |
| 6 | 18 | Ines Rubio | 11 | Chesterfield | 54.47 |
| 7 | 16 | Lorelei Clarke | 10 | BelperMarlin | 58.00 |
| 8 | 14 | Jessica Sellers | 10 | Chesterfield | 59.50 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Grace Keen | 10 | BelperMarlin | 53.23 |
| 2 | 25 | L Yokoyama-Nichols | 9 | Bakewell SC | 52.24 |
| 3 | 27 | Leonie Ablewhite | 10 | Long Eaton | 50.76 |
| 4 | 29 | Tillie Robinson | 10 | Chesterfield | 50.12 |
| 5 | 28 | Emily Edwards | 11 | Repton | 50.15 |
| 6 | 26 | Freya Taylor | 11 | BelperMarlin | 51.14 |
| 7 | 24 | Bethany Fenn | 10 | BelperMarlin | 52.27 |
| 8 | 22 | Evelynn Burgoyne | 10 | Derby Excel | 53.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Jess Tomlinson | 11 | BelperMarlin | 45.33 |
| 2 | 33 | Ellie Wan | 9 | Repton | 43.91 |
| 3 | 35 | Isla Davies | 10 | Chesterfield | 43.12 |
| 4 | 37 | Chloe Foreman | 11 | Ilkeston | 41.73 |
| 5 | 36 | Daisy Bailey | 11 | BelperMarlin | 42.80 |
| 6 | 34 | Constance Brinkworth | 10 | Derby Excel | 43.76 |
| 7 | 32 | Verity Roberts | 9 | Long Eaton | 44.15 |
| 8 | 30 | Sienna Hyland | 10 | Lichfield | 49.37 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | Madeleine Heron | 11 | Derby Excel | 41.00 |
| 2 | 41 | Ada Moorhouse | 11 | Derby Excel | 39.10 |
| 3 | 43 | Darcey Hallam | 11 | Long Eaton | 38.39 |
| 4 | 45 | Elsie Hatton | 11 | Repton | 35.33 |
| 5 | 44 | Ava Carter | 11 | BelperMarlin | 37.04 |
| 6 | 42 | Keira Parker | 11 | Derby Excel | 38.90 |
| 7 | 40 | Evelyn Szabo | 11 | Repton | 40.44 |
| 8 | 38 | Claudia Roberts | 11 | Long Eaton | 41.13 |