EVENT 108 Girls Open 800m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 1 | Amy PICKARD | 12 | Co Leeds | 12:46.00 |
| 1 | 2 | Olivia DOUGLAS-REEVES | 13 | Darlington | 12:45.50 |
| 2 | 3 | Mischa COMRIE | 10 | Co Leeds | 12:35.00 |
| 3 | 4 | Holly MACDONALD | 11 | Co Leeds | 12:20.00 |
| 4 | 5 | Lauren SMITH | 11 | Co Leeds | 12:19.80 |
| 5 | 6 | Kasja RICKELTON | 11 | Co Leeds | 12:00.00 |
| 6 | 7 | Christina BLACK | 10 | Co Leeds | 11:49.50 |
| 7 | 8 | Nell WILLIAMS | 10 | Co Leeds | 11:45.01 |
| 8 | 9 | Sophia KELLY | 10 | Co Leeds | 11:45.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 10 | Libby RICKELTON | 14 | Co Leeds | 11:35.00 |
| 1 | 11 | Martha CALLAGHAN | 11 | Co Leeds | 11:30.00 |
| 2 | 12 | Philippa BROMLEY | 11 | Co Leeds | 11:30.00 |
| 3 | 13 | Lucy ALLMAN | 11 | Co Leeds | 11:28.34 |
| 4 | 14 | Mollie GREENE | 11 | Co Leeds | 11:20.00 |
| 5 | 15 | Olivia HIDAYAT | 12 | Co Leeds | 11:20.00 |
| 6 | 16 | Anna ASHCROFT | 10 | Co Leeds | 11:20.00 |
| 7 | 17 | Jess WIDDOWSON | 11 | Co Leeds | 11:18.32 |
| 8 | 18 | Molly ROBERTS | 13 | Halifax | 11:14.92 |
| 9 | 19 | Eleanor VALENTINE-BULL | 11 | Bo Barnsley | 11:07.55 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 20 | Isla WILLIAMS | 11 | Co Leeds | 11:00.00 |
| 1 | 21 | Megan SHARP | 12 | Co Leeds | 11:00.00 |
| 2 | 22 | Iona LOGAN | 11 | Co Leeds | 10:58.00 |
| 3 | 23 | Nyah HAYES | 13 | Co Leeds | 10:53.43 |
| 4 | 24 | Rebecca DUNN | 12 | Co Leeds | 10:53.00 |
| 5 | 25 | Leah SCHLOSSHAN | 12 | Co Leeds | 10:50.00 |
| 6 | 26 | Megan BURNELL | 12 | Co Leeds | 10:49.88 |
| 7 | 27 | Charlotte BENNETT | 15 | Halifax | 10:49.64 |
| 8 | 28 | Martha EVERETT | 12 | Co Leeds | 10:48.42 |
| 9 | 29 | Charlotte CLARKE | 12 | Co Leeds | 10:46.02 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 30 | Emma PEARS-DORLAND | 14 | Team Jorvik | 10:45.77 |
| 1 | 31 | Sasha LONG | 11 | Co Leeds | 10:45.00 |
| 2 | 32 | Laura BETTLES | 14 | Team Jorvik | 10:45.00 |
| 3 | 33 | Jessica BUCKTON | 15 | Team Jorvik | 10:45.00 |
| 4 | 34 | Jolie MCGREAVY | 12 | Co Leeds | 10:40.00 |
| 5 | 35 | Sienna HO-SHING | 12 | Co Leeds | 10:39.26 |
| 6 | 36 | Ella COOPER | 13 | Co Leeds | 10:37.10 |
| 7 | 37 | Kidiest HODGSON | 13 | Co Leeds | 10:32.80 |
| 8 | 38 | Joan CLAYTON | 17 | Team Jorvik | 10:30.00 |
| 9 | 39 | Ellie WALKER | 16 | Tadcaster | 10:29.00 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 41 | Niamh CARROLL | 12 | Co Leeds | 10:14.00 |
| 1 | 43 | Freya JOHNSON | 12 | Co Leeds | 10:08.05 |
| 2 | 45 | Charlotte ROBINSON | 14 | Co Leeds | 9:47.40 |
| 3 | 47 | Martha BRADLEY | 13 | Bo Kirklees | 9:40.00 |
| 4 | 49 | Isabelle GOODWIN | 13 | Co Leeds | 9:17.70 |
| 5 | 48 | Amelie TURNER | 13 | Co Leeds | 9:30.66 |
| 6 | 46 | Ella BAINBRIDGE | 13 | Cleethorpes | 9:47.40 |
| 7 | 44 | Bethany CRUMP | 13 | Grimsby AST | 9:48.10 |
| 8 | 42 | Faith BLAIN | 13 | Co Leeds | 10:11.70 |
| 9 | 40 | Elizabeth RUSSELL | 12 | Co Leeds | 10:27.00 |