| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Lillia AKL | 9 | Tynemouth | 58.83 |
| 3 | 4 | Nancy O'NEILL | 10 | Tynemouth | 55.65 |
| 4 | 3 | Libby STOKOE | 10 | Tynemouth | 57.27 |
| 5 | 1 | Annabelle SMITH | 9 | Tynemouth | 1:00.00 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Orla NOLAN | 10 | Tynemouth | 54.44 |
| 2 | 8 | Autumn EYRE | 9 | Tynemouth | 50.41 |
| 3 | 10 | Harriet NEWPORT | 10 | Tynemouth | 42.30 |
| 4 | 9 | Hope ANDERSON | 9 | Tynemouth | 49.42 |
| 5 | 7 | Charlotte FRANCIS | 10 | Tynemouth | 52.98 |
| 6 | 5 | Florence NICHOLSON | 9 | Tynemouth | 55.44 |