EVENT 401 Girls Open 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 1 | Aira WILKINSON | 10 | Co Leeds | 7:10.18 |
| 1 | 3 | Esme HAYS | 11 | Co Wakefield | 6:26.54 |
| 2 | 5 | Olivia PAINE | 10 | Co Leeds | 6:26.10 |
| 3 | 7 | Maggie TRAN | 12 | Tadcaster | 6:25.00 |
| 4 | 9 | Chloe CROSBY | 11 | Stretford | 6:13.41 |
| 5 | 8 | Caitlyn SMITH | 10 | Co Leeds | 6:13.46 |
| 6 | 6 | Freya COTTERILL | 10 | Co Leeds | 6:25.60 |
| 7 | 4 | Darcey BLACKER | 11 | Co Leeds | 6:26.40 |
| 8 | 2 | Holly HARRISON | 9 | Co Leeds | 7:00.19 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 11 | Matilda POTTER | 11 | Co Leeds | 6:06.00 |
| 1 | 13 | Grace BRADBURY | 11 | Rotherham Mo | 6:00.00 |
| 2 | 15 | Scarlett STRATHIE | 14 | Co Wakefield | 5:50.00 |
| 3 | 17 | Mia STEEDEN | 11 | Co Leeds | 5:50.00 |
| 4 | 19 | Ruby ELLIS | 11 | Co Leeds | 5:35.20 |
| 5 | 18 | Latisha AUTON | 12 | Tadcaster | 5:48.43 |
| 6 | 16 | Lucy WIGHTMAN | 12 | Bo Barnsley | 5:50.00 |
| 7 | 14 | Matilda ASHCROFT | 11 | Co Leeds | 5:52.63 |
| 8 | 12 | Sophie FISHER | 11 | Rotherham Mo | 6:01.50 |
| 9 | 10 | Millie WALKER | 10 | Co Leeds | 6:10.20 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 21 | Samantha KNOWLES | 11 | Co Leeds | 5:32.90 |
| 1 | 23 | Valeria PINERA-LEVITA | 10 | Co Leeds | 5:28.52 |
| 2 | 25 | Daisy GUTTRIDGE | 14 | Donc Dartes | 5:22.45 |
| 3 | 27 | Mila HUGHES | 12 | Donc Dartes | 5:21.60 |
| 4 | 29 | Charlotte SHAW | 11 | Co Leeds | 5:14.50 |
| 5 | 28 | Darcey CROSSLEY | 11 | Co Leeds | 5:16.01 |
| 6 | 26 | Ava RANSOME | 11 | Co Leeds | 5:22.40 |
| 7 | 24 | Kaitlyn CROSBY | 12 | Stretford | 5:22.60 |
| 8 | 22 | Elizabeth DIXON | 10 | Co Leeds | 5:31.85 |
| 9 | 20 | Ruby GAMBLES | 11 | Rotherham Mo | 5:35.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 31 | Lily STRATTON | 13 | Grimsby AST | 5:09.61 |
| 1 | 33 | Sophie MCLURE | 13 | Tadcaster | 5:08.05 |
| 2 | 35 | Mischa COMRIE | 12 | Co Leeds | 5:06.93 |
| 3 | 37 | Faith BLAIN | 15 | Co Leeds | 5:02.25 |
| 4 | 39 | Amy PICKARD | 14 | Co Leeds | 5:00.81 |
| 5 | 38 | Tabitha BROWNING | 14 | Tadcaster | 5:01.51 |
| 6 | 36 | Lucy ELLIS | 15 | Rotherham Mo | 5:06.02 |
| 7 | 34 | Eve DOHERTY | 11 | Rotherham Mo | 5:07.50 |
| 8 | 32 | Evangeline STACEY | 12 | Co Leeds | 5:09.13 |
| 9 | 30 | Amy CHECKLEY | 16 | Kippax | 5:13.60 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 0 | 41 | Sophia KELLY | 12 | Tadcaster | 5:00.10 |
| 1 | 43 | Kate FORSHAW | 16 | Bolton Metro | 4:54.00 |
| 2 | 45 | Daisy PURCHASE | 13 | Donc Dartes | 4:48.30 |
| 3 | 47 | Jess WIDDOWSON | 13 | Co Leeds | 4:46.08 |
| 4 | 49 | Mollie FISHER | 14 | Rotherham Mo | 4:29.70 |
| 5 | 48 | Abigail JACKSON | 16 | Rotherham Mo | 4:35.60 |
| 6 | 46 | Abigail PARKINSON | 15 | Tadcaster | 4:46.78 |
| 7 | 44 | Lola YOXALL | 14 | Bo Barnsley | 4:52.30 |
| 8 | 42 | Ruby BARKER | 14 | Donc Dartes | 4:59.10 |
| 9 | 40 | Eleanor VALENTINE-BULL | 13 | Bo Barnsley | 5:00.40 |