EVENT 207 Women Open 100m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Lois Inch | 15 | Victoria | |
| 3 | 3 | Ella McEver | 17 | Victoria | 1:09.94 |
| 4 | 5 | Aimee Monks | 17 | Melbourne | 1:07.60 |
| 5 | 4 | Izzy Blackhurst | 15 | Manchester | 1:07.70 |
| 6 | 2 | Holly Rotchell | 15 | Melbourne | 1:18.70 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Annabel Crees | 15 | Melbourne | 1:05.63 |
| 2 | 9 | Lauren Bradley-Holt | 18 | Victoria | 1:03.90 |
| 3 | 11 | Sophie Bromley | 16 | Melbourne | 1:03.00 |
| 4 | 13 | Iona Colbert | 17 | Auckland | 1:02.60 |
| 5 | 12 | Evie Dilley | 16 | Delhi | 1:02.70 |
| 6 | 10 | Annabelle Wilkinson | 17 | Victoria | 1:03.70 |
| 7 | 8 | Matilda Bogle | 16 | Glasgow | 1:05.10 |
| 8 | 6 | Ella Turner | 17 | Auckland | 1:05.80 |