| Pos | Name | YOB | Club | Time | ||||
| 1 | Hannah Hunter | 95 | HAQS | 44.18 | ||||
| 2 | Hannah Beauchamp | 95 | HARS | 44.24 | ||||
| 3 | Siobhan Harrison | 95 | BBFS | 46.53 | ||||
| 4 | Holly Bunting | 95 | HARS | 46.75 | ||||
| 5 | Samantha Crebo | 95 | HAQS | 46.98 | ||||
| 6 | Harriet Bryan | 95 | ALTS | 47.14 | ||||
| 7 | Charlotte Thomas | 95 | ALTS | 47.37 | ||||
| 8 | Elizabeth Neale | 96 | BBFS | 48.31 | ||||
| 9 | Laura Cullum | 95 | ALTS | 48.95 | ||||
| 10 | Victoria Baulcomb | 95 | BBFS | 50.19 | ||||
| 11 | Carys Shears | 96 | HAQS | 50.67 | ||||
| 12 | Kira Mancktelow | 95 | HARS | 51.04 | ||||
| 13 | Zante Tolley | 95 | HARS | 51.27 | ||||
| 14 | Catherine Dodge | 95 | HARS | 51.72 | ||||
| 15 | India Bosley | 96 | HAQS | 52.66 | ||||
| 16 | Gina Lay | 96 | BBFS | 56.58 | ||||
| 17 | Jessica Holloway | 95 | HAQS | 57.17 | ||||
| 18 | Nadia Warren | 96 | HAQS | 57.94 | ||||
| 19 | Olivia Pooley | 95 | HAQS | 59.08 | ||||
| 20 | Amber Bernice | 96 | GOSS | 1:02.10 | ||||
| Hannah Evans | 95 | BBFS | DQ:Arms not recovering over water | |||||
| Charlotte Preston-Howes | 95 | BBFS | DQ:Alternating legs | |||||
| Jessica Walker | 95 | GOSS | DQ:Arms not recovering over water | |||||
| Kayleigh Ryan | 96 | HAQS | DQ:Arms not recovering over water | |||||
| Molly Davis | 95 | HARS | DQ:Arms not recovering over water |