| Heat Number - 1 | ||||||
| Lane | Comp.No. | Name | AaD | Cat | Club/Country | Time |
| 0 | 1 | Grace Harvey | 20 | S6 | Hoddesdon | 1:29.32 |
| 1 | 3 | Brock Whiston | 22 | S10 | Bark & Dagen | 1:16.99 |
| 2 | 5 | Abby Kane | 15 | S13 | N Ayrshire | 1:11.36 |
| 3 | 7 | Sophie Pascoe | 25 | S10 | Nova Cent'n | 1:08.31 |
| 4 | 9 | Hannah Russell | 22 | S12 | Co Manch Aq | 1:07.85 |
| 5 | 8 | Alice Tai | 19 | S8 | Bourmth Coll | 1:08.16 |
| 6 | 6 | Jessica-Jane Applegate | 22 | S14 | Co Norwich | 1:08.45 |
| 7 | 4 | Toni Shaw | 15 | S9 | Aberdeen Per | 1:16.19 |
| 8 | 2 | Megan Richter | 18 | S8 | Orion | 1:18.07 |