EVENT 405 Female 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Hattie KEELER | 9 | Co Leeds | 4:00.00 |
| 4 | 3 | Hannah HEPBURN-WOOD | 9 | Co Leeds | 3:44.46 |
| 5 | 2 | Gracie HART | 9 | Co Leeds | 3:50.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Matilda SHERLEY-PRICE | 9 | Co Leeds | 3:28.75 |
| 2 | 6 | Ayla CARRY | 11 | Co Leeds | 3:25.43 |
| 3 | 8 | Ezmae ALLEN | 12 | Co Sheffield | 3:16.22 |
| 4 | 10 | Sophia Xiu Hui KOK | 10 | Co Leeds | 3:14.50 |
| 5 | 9 | Anneliese CIRSTEA | 10 | Co Leeds | 3:15.00 |
| 6 | 7 | Anissia Ioana TILEA | 10 | Co Sheffield | 3:25.00 |
| 7 | 5 | Isabelle JORDAN | 9 | Co Leeds | 3:26.75 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Erika MARINOVA | 10 | Co Sheffield | 3:12.80 |
| 2 | 14 | Evie THORPE | 12 | Co Leeds | 3:10.73 |
| 3 | 16 | Erin HARGREAVES | 11 | Co Leeds | 3:10.12 |
| 4 | 18 | Polly JESSOP | 12 | Co Sheffield | 3:07.54 |
| 5 | 17 | Isabelle LOK | 10 | Co Leeds | 3:09.70 |
| 6 | 15 | Rosie HAIGH | 12 | Co Sheffield | 3:10.58 |
| 7 | 13 | Francesca SPALDING | 11 | Co Leeds | 3:11.99 |
| 8 | 11 | Phoebe EVANS | 10 | Blackpool Aq | 3:13.80 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Katie SADLER | 10 | Co Leeds | 3:01.03 |
| 2 | 23 | Amelia MATSON | 12 | Co Leeds | 2:59.77 |
| 3 | 25 | Faith BENSON | 15 | Bo Barnsley | 2:54.90 |
| 4 | 27 | Tilly SMITH | 12 | Wear Valley | 2:50.00 |
| 5 | 26 | Isabella STOICESCU | 12 | Co Leeds | 2:52.87 |
| 6 | 24 | Zoe FEATHER | 11 | Co Leeds | 2:55.20 |
| 7 | 22 | Hannah SLADE | 12 | Chapeltown | 3:00.00 |
| 8 | 20 | Sophie MARSTON | 11 | Cleethorpes | 3:01.50 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Daisy GLOVER | 13 | Co Leeds | 2:47.70 |
| 2 | 31 | Amelia KELLY | 17 | Wear Valley | 2:42.40 |
| 3 | 33 | Ella JOHNSON | 12 | Chapeltown | 2:39.50 |
| 4 | 35 | Emily MARRISON | 14 | Co Leeds | 2:28.50 |
| 5 | 34 | Evie-Rose TOPPING | 13 | Co Leeds | 2:37.90 |
| 6 | 32 | Bethany MAKWEMBERE | 12 | Preston | 2:40.80 |
| 7 | 30 | Rosie GRAYSON | 12 | Wear Valley | 2:45.30 |
| 8 | 28 | Isabel MARTIN | 15 | Chapeltown | 2:48.40 |