| Pos | Name | YOB | Club | Time | ||||
| 1 | Kira Mancktelow | 95 | HARS | 3:46.83 | ||||
| 2 | Bethany Jerram | 95 | WEWS | 3:50.32 | ||||
| 3 | Elizabeth Neale | 96 | BBFS | 3:57.47 | ||||
| 4 | Rosie Mist | 96 | PORS | 3:58.27 | ||||
| 5 | Amy Fisher | 95 | ALTS | 4:02.25 | ||||
| 6 | Laura Cullum | 95 | ALTS | 4:04.07 | ||||
| 7 | Hollie Parker | 96 | LSSS | 4:16.16 | ||||
| 8 | Katie Mottershead | 96 | LSSS | 4:18.60 | ||||
| 9 | Katie Hodgkinson | 95 | LSSS | 4:20.04 | ||||
| 10 | Chloe Salmon | 95 | HVWS | 4:27.16 | ||||
| 11 | Beth Dingley | 95 | FANS | 4:28.55 | ||||
| 12 | Emma Lothian | 96 | LSSS | 4:33.63 | ||||
| 13 | Hannah Dowdell | 96 | FANS | 4:38.94 | ||||
| 14 | Daisy Small | 96 | LSSS | 4:56.81 | ||||
| Holly Bunting | 95 | HARS | DQ:False start | |||||
| Nina Absolom | 96 | WCPS | DQ:2 strokes under water at start | |||||
| Grace Parker | 96 | LSSS | DQ:2 strokes underwater at turns 1 & 2 | |||||
| Lucy Strowger | 95 | GOSS | DQ:False Start | |||||
| Rose Faulkner | 95 | HVWS | DQ:False Start | |||||
| Chloe Jackson | 95 | HVWS | DQ:Legs not in same horizontal plane | |||||
| Laura McDonough | 95 | WCPS | DQ:Non symmetrical arm action prior to turn 4 |