EVENT 507 Womens Open 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 2 | Anya Preece | 15 | Wrekin Coll | 9:11.99 |
| 2 | 4 | Rebecca Flisher | 16 | Nova Cent'n | 9:10.20 |
| 3 | 6 | Ana Vicary | 17 | Co Coventry | 9:09.40 |
| 4 | 8 | Keeley Murcott | 16 | Royal Wolv | 9:03.70 |
| 5 | 7 | Ella Thatcher-Plant | 16 | Wrekin Coll | 9:05.40 |
| 6 | 5 | Emma Erskine | 14 | Nova Cent'n | 9:10.10 |
| 7 | 3 | Caitlin Kilgallen | 16 | Chase | 9:11.30 |
| 8 | 1 | Harriet Smith | 14 | Wrekin Coll | 9:14.10 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 10 | Chloe Stennett | 16 | Chesterfield | 8:58.50 |
| 2 | 12 | Freya Colbert | 14 | Nova Cent'n | 8:48.80 |
| 3 | 14 | Mollie Wright | 20 | Nova Cent'n | 8:45.30 |
| 4 | 16 | Polly Holden | 19 | Nova Cent'n | 8:27.50 |
| 5 | 15 | Niamh Hofland | 16 | Royal Wolv | 8:42.50 |
| 6 | 13 | Michaella Glenister | 16 | Leic Sharks | 8:47.90 |
| 7 | 11 | Alicia Dingle | 16 | Royal Wolv | 8:57.90 |
| 8 | 9 | Livia Kingsland | 13 | Nova Cent'n | 9:01.20 |