EVENT 100 Girls Open 400m Freestyle - Heats
Not Competing : 13,14
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 8 | Henna Crossfield | 11 | BUXA | : . |
| 3 | 2 | Katie Ann Smith | 13 | BUXA | : . |
| 4 | 6 | Bethany Griffiths | 12 | BUXA | : . |
| 5 | 9 | Matilda Reeves | 11 | BUXA | : . |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 2 | 3 | Florence Johnson | 11 | BUXA | : . |
| 3 | 10 | Miriam Buston | 14 | BUXA | : . |
| 4 | 7 | Esther Buston | 12 | BUXA | : . |
| 5 | 4 | Tessa Cooper | 9 | BUXA | : . |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 15 | Lily Bray | 12 | Buxton | : . |
| 2 | 1 | Emily Opelt | 12 | BUXA | : . |
| 3 | 12 | Maisie Beattie | 10 | Leek | : . |
| 4 | 5 | Clo? De La Bertouche | 12 | BUXA | : . |
| 5 | 11 | Chloe Montgomery-White | 10 | BUXA | : . |