EVENT 101 Womens Open 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 3 | 1 | Eleanor ROBINSON | 16 | S6 | Northampton | 5:30.00 |
| 4 | 3 | Laura HAWKINS | 17 | | Royal Wolv | 4:27.00 |
| 5 | 2 | Keeley MURCOTT | 15 | | Royal Wolv | 4:29.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 4 | Amy MEAD | 15 | | Nova Cent'n | 4:26.70 |
| 2 | 6 | Darcy DEAKIN | 18 | | Loughboro Un | 4:26.30 |
| 3 | 8 | Sophie NEGRINE | 14 | | Ellesmere Co | 4:26.05 |
| 4 | 10 | Ana VICARY | 16 | | Co Coventry | 4:25.60 |
| 5 | 9 | Caitlin KILGALLEN | 15 | | Chase | 4:25.90 |
| 6 | 7 | Jade KENNERELL | 16 | | Nova Cent'n | 4:26.10 |
| 7 | 5 | Mia BARBER | 16 | | Derventio | 4:26.70 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 12 | Zara LELEUX | 16 | | Wrekin Coll | 4:24.30 |
| 2 | 14 | Eva VICARY | 17 | | Co Coventry | 4:24.20 |
| 3 | 16 | Ella THATCHER-PLANT | 15 | | Wrekin Coll | 4:23.90 |
| 4 | 18 | Maisie ELLIOTT | 14 | | Co Leicester | 4:23.10 |
| 5 | 17 | Jessica MCDONOUGH | 15 | | Ellesmere Co | 4:23.60 |
| 6 | 15 | Chloe BAXTER | 12 | | Co Leicester | 4:24.10 |
| 7 | 13 | Annie PEARSON | 15 | | Nova Cent'n | 4:24.20 |
| 8 | 11 | Freya STEVENS | 16 | | Northampton | 4:25.30 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 21 | Amelia RODD | 15 | | Redditch | 4:21.40 |
| 2 | 25 | Polly HOLDEN | 18 | | Nova Cent'n | 4:20.50 |
| 3 | 29 | Niamh HOFLAND | 15 | | Royal Wolv | 4:17.50 |
| 4 | 33 | Mollie WRIGHT | 19 | | Nova Cent'n | 4:12.80 |
| 5 | 31 | Phoebe GRIFFITHS | 17 | | Ellesmere Co | 4:16.30 |
| 6 | 27 | Freya COLBERT | 13 | | Nova Cent'n | 4:18.70 |
| 7 | 23 | Chloe STENNETT | 15 | | Chesterfield | 4:21.10 |
| 8 | 19 | Alicia DINGLE | 15 | | Royal Wolv | 4:22.40 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 1 | 22 | Olivia TATTON | 17 | | Northampton | 4:21.20 |
| 2 | 26 | Anna SMAIL | 15 | | Ellesmere Co | 4:19.90 |
| 3 | 30 | Brearnna CLOSE | 20 | | Loughboro Un | 4:17.20 |
| 4 | 34 | Alice DEARING | 20 | | Loughboro Un | 4:08.50 |
| 5 | 32 | Michaella GLENISTER | 15 | | Co Leicester | 4:13.10 |
| 6 | 28 | Emily CLARKE | 20 | | Loughboro Un | 4:17.50 |
| 7 | 24 | Esther HALFORD | 17 | | Derventio | 4:20.70 |
| 8 | 20 | Charlotte HALL | 15 | | Derventio | 4:22.20 |