EVENT 309 Womens MC 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 1 | Ellie Spokes | 03 | S6 | Leic Sharks | 8:59.81 |
| 2 | 3 | Charlotte McGuinness | 01 | S6 | Harrogate | 8:29.37 |
| 3 | 5 | Genevieve Hunter | 02 | S8 | Beachfield | 7:24.31 |
| 4 | 7 | Annabelle Ireland | 03 | S9 | West Suffolk | 7:10.93 |
| 5 | 6 | Georgia Howell | 02 | S6 | Littleh'pton | 7:24.31 |
| 6 | 4 | Emily-Jane Surgeoner | 07 | S9 | Orion | 8:19.83 |
| 7 | 2 | Elizabeth Foster | 04 | S8 | Havant & Wat | 8:30.50 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 1 | 9 | Charlotte Hyde | 02 | S7 | Camden Swiss | 6:34.76 |
| 2 | 11 | Hollie Pinder | 02 | S9 | Adwick | 6:24.17 |
| 3 | 13 | Drew Stables | 02 | S10 | Cockermouth | 5:38.47 |
| 4 | 15 | Lily Macleod | 01 | S13 | Mt Kelly | 4:49.78 |
| 5 | 14 | Coral Farrell | 01 | S10 | Warrington W | 5:05.47 |
| 6 | 12 | Letisha Ellis | 04 | S15 | Io Man | 6:09.92 |
| 7 | 10 | Isabel Dean | 04 | S10 | Leic Peng | 6:30.84 |
| 8 | 8 | Madeleine Harris | 03 | S9 | Elmbridge | 7:09.78 |