EVENT 304 Womens MC 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 3 | 1 | Ellie Spokes | 15 | S6 | Northampton | 8:25.00 |
| 4 | 3 | Fern Sneddon | 12 | S6 | RTW Monson | 7:44.66 |
| 5 | 2 | Lauren Sanders | 32 | S7 | Warrington W | 7:45.96 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 6 | Emily-Jane Surgeoner | 11 | S9 | Orion | 7:04.46 |
| 1 | 10 | Eliza Humphrey | 13 | S12 | Northampton | 6:46.26 |
| 2 | 14 | Madeleine Harris | 15 | S9 | Elmbridge | 6:15.95 |
| 3 | 18 | Anya Falkus | 16 | S13 | Wisbech | 6:00.63 |
| 4 | 22 | Drew Stables | 16 | S10 | Cockermouth | 5:28.86 |
| 5 | 20 | Maya Brisco | 18 | S9 | Staines | 5:48.99 |
| 6 | 16 | Charlotte Hyde | 16 | S7 | Camden Swiss | 6:01.30 |
| 7 | 12 | Georgia Howell | 16 | S6 | Littleh'pton | 6:40.76 |
| 8 | 8 | Genevieve Hunter | 16 | S8 | Beachfield | 6:53.69 |
| 9 | 4 | Elizabeth Foster | 14 | S8 | Havant & Wat | 7:35.68 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 7 | Anna Binns | 30 | S12 | Orion | 6:57.48 |
| 1 | 11 | Eva French | 11 | S10 | Nuneaton | 6:44.86 |
| 2 | 15 | G Cooper-Holmes | 18 | S7 | Cockermouth | 6:10.76 |
| 3 | 19 | Catherine Marr | 16 | S13 | Norwich Swan | 6:00.58 |
| 4 | 23 | Katie Crowhurst | 14 | S13 | Wycombe Dist | 5:19.65 |
| 5 | 21 | Eleanor Bamber | 22 | S10 | Satellite | 5:40.71 |
| 6 | 17 | Porsha Jones | 16 | S10 | Shrewsbury | 6:00.84 |
| 7 | 13 | Samantha Lewis | 26 | S9 | Satellite | 6:40.41 |
| 8 | 9 | Scarlett Humphrey | 13 | S12 | Northampton | 6:52.88 |
| 9 | 5 | Isla Howe | 16 | S7 | Nova Cent'n | 7:07.23 |