| Fastest Heat - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 2 | Francesca Barber | 16 | Co Norwich | 18:23.62 |
| 3 | 4 | Chloe Cranny | 14 | Epping For't | 18:09.90 |
| 4 | 6 | Anabelle Kett | 16 | Co Peterboro | 17:59.58 |
| 5 | 5 | Amelia Saunders | 17 | Norwich Swan | 17:59.70 |
| 6 | 3 | Emma Cushion | 15 | Co Peterboro | 18:21.30 |
| 7 | 1 | Cassandra Pereira | 15 | Watford SC | 18:37.20 |