| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 1 | Erica TURNBULL | 12 | South Holder | 4:04.13 |
| 2 | 3 | Robert CHRISTON | 13 | South Holder | 3:31.34 |
| 3 | 2 | Amelia HEWITT | 13 | South Holder | 3:38.15 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Ella MARTINSON | 12 | South Holder | 3:27.31 |
| 2 | 6 | George STAMMERS | 14 | South Holder | 3:12.00 |
| 3 | 5 | Freya PEERS | 13 | South Holder | 3:25.94 |