| | Heat Number - 1 | | | |
| Lane | Comp.No. | __________Name__________ | AaD | Club/Country | Time |
| 1 | 2 | Lili RONEY | 11 | Co Cambridge | 7:30.00 |
| 2 | 4 | Sophie LANKFORD | 12 | Co Cambridge | 6:31.22 |
| 3 | 6 | Sarah BRENNAN | 14 | Co Cambridge | 6:00.00 |
| 4 | 8 | Millie ROSE | 12 | Co Cambridge | 5:45.00 |
| 5 | 7 | Alice SHARPE | 13 | Co Cambridge | 5:50.00 |
| 6 | 5 | Georgia CRAWFORD | 11 | Co Cambridge | 6:10.00 |
| 7 | 3 | Alexandra HOLT | 11 | Co Cambridge | 6:38.73 |
| 8 | 1 | Emily WINDSOR | 12 | Co Cambridge | 10:00.00 |
| | Heat Number - 2 | | | |
| Lane | Comp.No. | __________Name__________ | AaD | Club/Country | Time |
| 1 | 10 | Charlotte BEGG | 13 | Co Cambridge | 5:25.00 |
| 2 | 12 | Ellie WINTER | 12 | Co Cambridge | 5:25.00 |
| 3 | 14 | Zoe OTHIENO | 14 | Co Cambridge | 5:12.75 |
| 4 | 16 | Helen STRUTHERS | 15 | Co Cambridge | 4:51.67 |
| 5 | 15 | Georgina ROUGHSEDGE | 14 | Co Cambridge | 4:56.60 |
| 6 | 13 | Fay WESTWOOD | 15 | Co Cambridge | 5:20.00 |
| 7 | 11 | Holly REES | 14 | Co Cambridge | 5:25.00 |
| 8 | 9 | Mara JOHNSON | 15 | Co Cambridge | 5:30.00 |