| Heat Number - 1 | ||||||
| Lane | Comp.No. | Name | YoB | Cat | Club/Country | Time |
| 0 | 2 | Charlotte Henshaw | 87 | SB6 | Nova Cent'n | 1:37.12 |
| 1 | 4 | Lily Macleod | 01 | SB13 | RichmondDale | 1:28.80 |
| 2 | 6 | Claire Cashmore | 88 | SB8 | Wyre Forest | 1:21.26 |
| 3 | 8 | Harriet Lee | 91 | SB9 | T North WP | 1:17.85 |
| 4 | 10 | Bethany Firth | 96 | SB14 | Newcastle | 1:13.99 |
| 5 | 9 | Rebecca Redfern | 99 | SB13 | Worcester | 1:16.86 |
| 6 | 7 | Louise Fiddes | 01 | SB14 | Hatfield | 1:20.44 |
| 7 | 5 | Danielle Hartin | 02 | SB14 | Basildon Ph | 1:23.48 |
| 8 | 3 | Abby Kane | 03 | SB13 | Ren 96 | 1:31.39 |
| 9 | 1 | Maisie Summers-Newton | 02 | SB6 | Northampton | 1:54.74 |