| Heat Number - 1 | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 2 | Alice Tai | 14 | S10 | Bourmth Coll | 1:18.13 |
| 1 | 4 | Emma Cattle | 25 | S10 | Team Luton | 1:15.44 |
| 2 | 6 | Claire Cashmore | 25 | S9 | Wyre Forest | 1:13.26 |
| 3 | 8 | Gemma Almond | 20 | S10 | Swansea Uni | 1:11.09 |
| 4 | 10 | Hannah Russell | 17 | S12 | Kelly Coll | 1:08.57 |
| 5 | 9 | Eleni Papadopoulos | 21 | S10 | Co Manch Aq | 1:10.64 |
| 6 | 7 | Amy Marren | 15 | S9 | Romford Town | 1:12.14 |
| 7 | 5 | Tully Kearney | 16 | S10 | Boldmere | 1:14.61 |
| 8 | 3 | Elizabeth Simpkin | 19 | S9 | Preston | 1:16.18 |
| 9 | 1 | Chloe Buck | 16 | S9 | Harrogate | 1:18.28 |