EVENT 301 Womens Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 3 | 1 | Katie Parfitt | 14 | Aquae Sulis | 5:12.44 |
| 4 | 3 | Hannah Jones | 14 | Stockport Mo | 5:09.89 |
| 5 | 2 | Georgia Coates | 14 | Co Leeds | 5:11.79 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 11 | Sophie Waller | 15 | Dover Life | 5:02.54 |
| 2 | 17 | Abbie Wood | 14 | Derventio | 4:57.29 |
| 3 | 23 | Alice Tennant | 20 | Swansea Uni | 4:49.86 |
| 4 | 29 | Keri-Anne Payne | 26 | Warrender Ba | 4:44.74 |
| 5 | 26 | Danielle Lowe | 18 | Middlesboro | 4:46.43 |
| 6 | 20 | Rosie Rudin | 15 | Nova Cent'n | 4:51.96 |
| 7 | 14 | Lucy Ellis | 16 | Co Sund'land | 5:02.37 |
| 8 | 8 | Elizabeth Hopkins | 14 | Co South'ton | 5:06.61 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 6 | Emma Cain | 14 | Millfield | 5:08.65 |
| 1 | 12 | Georgia Nixon | 16 | Middlesboro | 5:02.50 |
| 2 | 18 | Chloe Hannam | 17 | Co Peterboro | 4:53.87 |
| 3 | 24 | Elena Sheridan | 18 | Romford Town | 4:48.61 |
| 4 | 30 | Aimee Willmott | 20 | Middlesboro | 4:37.48 |
| 5 | 27 | Lucy Spencer | 20 | Co Sheffield | 4:46.15 |
| 6 | 21 | Rachel Williams | 20 | Bath Univ | 4:51.75 |
| 7 | 15 | Amber Keegan | 16 | Nova Cent'n | 5:01.61 |
| 8 | 9 | Holly Hibbott | 14 | Southport | 5:06.19 |
| 9 | 4 | Emily Graham | 14 | Plymouth Lea | 5:09.65 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 7 | Laura Stephens | 14 | Colchester | 5:08.25 |
| 1 | 13 | Abigail Humphreys | 15 | Co Coventry | 5:02.37 |
| 2 | 19 | Rachael Solway | 21 | Loughboro Un | 4:52.97 |
| 3 | 25 | Ellis Jackson | 19 | St Felix Sch | 4:47.82 |
| 4 | 31 | Hannah Miley | 24 | Garioch | 4:32.67 |
| 5 | 28 | Karley Mann | 19 | Hillingdon | 4:45.64 |
| 6 | 22 | Emma Day | 16 | Guildford Ct | 4:51.04 |
| 7 | 16 | Candice Hall | 16 | Co Leicester | 5:00.25 |
| 8 | 10 | Erin Nabney | 16 | Ealing | 5:03.03 |
| 9 | 5 | Kirsty Armstrong | 14 | B.E.S.T. | 5:09.48 |