EVENT 401 Girls Open 400m Freestyle - Heats
Not Competing : 40,44
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 1 | 1 | Abigail SLACK | 14 | Bo Stockton | 5:08.35 |
| 2 | 3 | Olivia HIDAYAT | 12 | Co Leeds | 5:06.89 |
| 3 | 5 | Macy YOXALL | 13 | Stocksbridge | 5:06.52 |
| 4 | 7 | Sophie BROMLEY | 12 | Co Sheffield | 5:05.05 |
| 5 | 6 | Mollie GREENE | 12 | Co Leeds | 5:06.23 |
| 6 | 4 | Amelia SMITH | 13 | Rotherham Mo | 5:06.83 |
| 7 | 2 | Ella ROBERTS | 14 | Co Sheffield | 5:08.19 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 9 | Sasha LONG | 12 | Co Leeds | 5:02.49 |
| 1 | 11 | Alicia COLE | 15 | Donc Dartes | 5:00.84 |
| 2 | 13 | Isabel NEWSON | 16 | Grimsby AST | 4:58.46 |
| 3 | 15 | Isla WILLIAMS | 12 | Co Leeds | 4:58.00 |
| 4 | 17 | Elizabeth CAUNT | 18 | Satellite | 4:54.41 |
| 5 | 16 | Jesse FINLAY | 13 | Co Sheffield | 4:54.54 |
| 6 | 14 | Lois FILLINGHAM | 14 | Donc Dartes | 4:58.09 |
| 7 | 12 | Megan SHARP | 12 | Co Leeds | 4:58.52 |
| 8 | 10 | Martha EVERETT | 13 | Co Leeds | 5:02.00 |
| 9 | 8 | Daisy THOMPSON | 14 | Bo Stockton | 5:02.92 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 19 | Elizabeth RUSSELL | 13 | Co Leeds | 4:52.96 |
| 1 | 21 | Georgia HEATH | 14 | Bolton | 4:50.96 |
| 2 | 23 | Mollie FISHER | 13 | Rotherham Mo | 4:50.46 |
| 3 | 25 | Ashleigh BAILLIE | 12 | Co Sheffield | 4:50.10 |
| 4 | 27 | Lauren SMITH | 12 | Co Leeds | 4:48.86 |
| 5 | 26 | Bethany CRUMP | 14 | Grimsby AST | 4:49.30 |
| 6 | 24 | Niamh MORRIS | 15 | Co Leeds | 4:50.16 |
| 7 | 22 | Hannah PETTENER | 14 | Wirral Metro | 4:50.78 |
| 8 | 20 | Jessica WRIGHT | 15 | Chester Le S | 4:51.43 |
| 9 | 18 | Phoebe DAWSON | 15 | Co Leeds | 4:53.81 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 30 | Georgia ROBERTSON | 13 | Co Sheffield | 4:46.98 |
| 1 | 34 | Coco SOWDEN | 14 | Bo Stockton | 4:44.97 |
| 2 | 38 | Hannah WRIGHT | 15 | Chester Le S | 4:41.26 |
| 3 | 43 | Lara THOMSON | 13 | Co Leeds | 4:36.22 |
| 4 | 48 | Sapphira GABBANI | 15 | Co Sheffield | 4:27.28 |
| 5 | 46 | Grace CONROY | 13 | Co Sheffield | 4:32.53 |
| 6 | 41 | Callie RAMSHAW | 15 | Donc Dartes | 4:39.43 |
| 7 | 36 | Leah SCHLOSSHAN | 13 | Co Leeds | 4:43.84 |
| 8 | 32 | Georgia PHELAN | 16 | Donc Dartes | 4:45.20 |
| 9 | 28 | Milli STEELE | 15 | Bo Stockton | 4:48.27 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club/Country | Time |
| 0 | 31 | Summer THOMAS | 14 | Co Sheffield | 4:46.70 |
| 1 | 35 | Freya JOHNSON | 13 | Co Leeds | 4:44.87 |
| 2 | 39 | Niamh CARROLL | 13 | Co Leeds | 4:40.50 |
| 3 | 45 | Chantelle WAUGH | 17 | Donc Dartes | 4:33.25 |
| 4 | 49 | Issey-May REEVES | 14 | Co Sheffield | 4:25.58 |
| 5 | 47 | Abigail JACKSON | 15 | Rotherham Mo | 4:32.20 |
| 6 | 42 | Lucy WOODLIFFE | 15 | Grimsby AST | 4:37.68 |
| 7 | 37 | Lucy POLLARD | 15 | Co Leeds | 4:42.02 |
| 8 | 33 | Lauren EMPSON | 14 | Rotherham Mo | 4:45.10 |
| 9 | 29 | Katie HIRST | 17 | Co Sheffield | 4:47.35 |