EVENT 205 Womens Open 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 3 | 1 | Georgia Milton | 00 | Romford Town | 9:13.19 |
| 4 | 3 | Olivia Miles | 02 | Thanet Swim | 9:12.67 |
| 5 | 2 | Megan Davies | 00 | Barnet Copt | 9:13.15 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 5 | Ellenor Rixon | 00 | Guildford Ct | 9:11.69 |
| 2 | 7 | Alisha Hawkins | 01 | Stockport Mo | 9:10.79 |
| 3 | 9 | Esther Halford | 00 | Derventio | 9:09.55 |
| 4 | 11 | Sophie Smith | 01 | St Thomas | 9:07.66 |
| 5 | 10 | Fleur Lewis | 03 | Barnet Copt | 9:09.07 |
| 6 | 8 | Olivia Tatton | 00 | Northampton | 9:10.15 |
| 7 | 6 | Roisin Ramsay | 01 | Warrender Ba | 9:10.94 |
| 8 | 4 | Claudia Murray | 00 | Co Cardiff | 9:12.45 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 13 | Michaella Glenister | 02 | Co Leicester | 9:04.53 |
| 2 | 15 | Emilia Sansome | 01 | Wycombe Dist | 9:01.96 |
| 3 | 17 | Iona Macleod | 03 | Dun City Aqu | 9:01.90 |
| 4 | 19 | Emily Clarke | 97 | Loughboro Un | 8:57.08 |
| 5 | 18 | Sian Martin | 00 | Newcastle | 9:01.51 |
| 6 | 16 | Phoebe Griffiths | 00 | Ellesmere Co | 9:01.94 |
| 7 | 14 | Caitlin Mackay | 01 | Wycombe Dist | 9:02.11 |
| 8 | 12 | Jessica Podger | 01 | Co Bristol | 9:04.78 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 21 | Jessica Thomson | 99 | Aberdeen Per | 8:56.97 |
| 2 | 23 | Leah Crisp | 01 | Co Leeds | 8:53.41 |
| 3 | 25 | Nikki Miller | 00 | Eastkilbride | 8:52.23 |
| 4 | 27 | Maisie Macartney | 01 | Thanet Swim | 8:50.82 |
| 5 | 26 | Georgia Darwent | 98 | Newcastle | 8:50.83 |
| 6 | 24 | Abbie Houston | 95 | Co Sheffield | 8:52.57 |
| 7 | 22 | Monique Olivier | 98 | Edinburgh Un | 8:56.57 |
| 8 | 20 | Mollie Wright | 98 | Nova Cent'n | 8:57.03 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | YoB | Club/Country | Time |
| 1 | 29 | Aimee Willmott | 93 | London Aquat | 8:45.24 |
| 2 | 31 | Alice Dearing | 97 | Loughboro Un | 8:42.36 |
| 3 | 33 | Holly Hibbott | 99 | Stockport Mo | 8:36.02 |
| 4 | 35 | Jazmin Carlin | 90 | Bath Univ | 8:16.17 |
| 5 | 34 | Camilla Hattersley | 95 | Co Glasgow | 8:33.65 |
| 6 | 32 | Danielle Huskisson | 93 | UniOfStirl | 8:39.34 |
| 7 | 30 | Isobel Griffiths | 99 | Co Birm'ham | 8:42.49 |
| 8 | 28 | Amber Keegan | 97 | Co Sheffield | 8:47.90 |