| Heat Number - 1 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Isabelle CLAYTON | 12 | Grantham | 6:46.50 |
| 4 | 2 | Imogen ROTHWELL | 13 | Co Lincoln P | 6:41.70 |
| 5 | 3 | Phoebe CHARMAN | 15 | Lincoln TSA | 6:25.00 |
| Heat Number - 2 | |||||
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Emily PENNELL | 14 | Co Lincoln P | 6:23.24 |
| 2 | 6 | Daniela BRINGEMAN | 18 | South Lincs | 5:40.83 |
| 3 | 9 | Lillie HAMILTON | 16 | South Lincs | 5:29.56 |
| 4 | 11 | Lexie HAMILTON | 15 | South Lincs | 5:06.99 |
| 5 | 10 | William VERE | 16 | South Lincs | 5:18.64 |
| 6 | 7 | Annabelle JAY | 13 | Grantham | 5:40.68 |
| 7 | 5 | Bronte CUSTER | 13 | Chase | 6:11.24 |