EVENT 303 Girl 07 Yrs/Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | HARRIET MCCORMACK | 12 | Grantham | |
| 3 | 2 | KENDRA GREENWOOD-COVEL | 13 | Deepings | |
| 4 | 3 | ISABELLA STARK | 11 | Grantham | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | MILLIE BAILEY | 12 | Grantham | |
| 2 | 5 | JESSICA-ROSE DAVISON | 12 | Grantham | |
| 3 | 6 | LEXIE SHEWAN | 11 | Grantham | |
| 4 | 7 | EMILIE WEBB | 11 | Grantham | 6:49.25 |
| 5 | 8 | AMELIA HATHWAY | 12 | Grantham | 6:47.32 |
| 6 | 9 | MARCELINA DEBICKA | 13 | Grantham | 6:31.75 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 10 | ELENA ALDENHOFF-KELLY | 13 | Grantham | 5:43.91 |
| 2 | 11 | RIANNA ABBOTT | 13 | Grantham | 5:35.31 |
| 3 | 12 | PENELOPE BAXTER | 16 | Deepings | 5:32.21 |
| 4 | 13 | MILLIE HERRICK | 14 | Deepings | 5:25.84 |
| 5 | 14 | ALEXANDRA HALLAM-STOTT | 15 | Grantham | 5:13.81 |
| 6 | 15 | SOPHIE BASKEYFIELD | 18 | Deepings | 5:13.27 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | FRANCESCA HALLAM-STOTT | 14 | Grantham | 4:59.07 |
| 2 | 19 | EVIE TURNER | 15 | Grantham | 4:52.07 |
| 3 | 21 | CHLOE HOPKINSON | 16 | Grantham | 4:37.43 |
| 4 | 20 | SEREN PAGE | 14 | Grantham | 4:46.46 |
| 5 | 18 | GRACE TURNER | 14 | Grantham | 4:57.69 |
| 6 | 16 | SOPHIE LEVERIDGE | 13 | Grantham | 5:12.27 |