EVENT 403 Womens MC 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 3 | 1 | G Cooper-Holmes | 00 | S7 | Carlisle Aq | 8:28.11 |
| 4 | 3 | Adele Maguire | 01 | S8 | Warrington W | 8:01.75 |
| 5 | 2 | Lauren Sullivan | 97 | S6 | Cheam Marc S | 8:14.80 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 5 | Megan Atkinson | 00 | S6 | Peterlee | 7:50.79 |
| 1 | 7 | Hollie Pinder | 02 | S9 | Adwick | 7:32.03 |
| 2 | 9 | Eleanor Robinson | 01 | S6 | Northampton | 6:47.11 |
| 3 | 11 | Sophie Taylor | 96 | S7 | South Lincs | 6:41.62 |
| 4 | 13 | Grace Harvey | 98 | S7 | Hoddesdon | 6:32.84 |
| 5 | 12 | Rebecca Franks | 97 | S9 | Lincoln Vulc | 6:35.28 |
| 6 | 10 | Julia Castello Farre | 90 | S6 | Spain | 6:45.10 |
| 7 | 8 | Jeannie Darroch | 89 | S8 | Appleby | 7:13.87 |
| 8 | 6 | Sallie Phillips | 99 | S8 | Gloucester | 7:36.84 |
| 9 | 4 | Laura Pilkington | 97 |