EVENT 32 Female 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Matilda HARPER | 10 | Grantham | 3:50.00 |
| 3 | 2 | Sophie HARRISON | 15 | Deepings | 3:40.33 |
| 4 | 3 | Edith TEMPLEMAN | 9 | Louth | 3:40.00 |
| 5 | 4 | Yu Tsing (Trixie) CHEU | 12 | Grantham | 3:30.11 |
| 6 | 5 | Bethany MEAKIN | 11 | Grantham | 3:30.00 |
| 7 | 6 | Rosie FLETT | 12 | Louth | 3:30.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Betsy BOLAND | 13 | Louth | 3:28.84 |
| 2 | 8 | Alice SOWDEN | 11 | Gainsborough | 3:20.00 |
| 3 | 9 | Ophelia GOODALE | 11 | Deepings | 3:20.00 |
| 4 | 10 | Sophia CUFFLEY | 10 | Lincoln Vulc | 3:15.73 |
| 5 | 11 | Maisie DARBY | 15 | Lincoln Vulc | 3:14.74 |
| 6 | 12 | Florence MCCLURE | 10 | Lincoln TSA | 3:12.95 |
| 7 | 13 | Olivia CHARITY | 14 | Grantham | 3:12.13 |
| 8 | 14 | Jessica SPECK | 15 | Lincoln Vulc | 3:11.36 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Francesca WESTON | 11 | Grantham | 3:09.48 |
| 2 | 16 | Caitlynn EDMEADES | 12 | Deepings | 3:07.47 |
| 3 | 17 | Hollie-Ann CROOK | 11 | Grantham | 3:05.79 |
| 4 | 18 | Ella-Rose HUNTER | 13 | Lincoln Vulc | 3:05.00 |
| 5 | 19 | Victoria MCKAY | 12 | Gainsborough | 3:01.33 |
| 6 | 20 | Robyn CROSS | 13 | Lincoln Vulc | 3:00.85 |
| 7 | 21 | Chloe APPLEWHITE | 10 | Gainsborough | 3:00.00 |
| 8 | 22 | Madeline SURTEES | 13 | Grantham | 2:59.23 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Caitlin CROSS | 13 | Lincoln Vulc | 2:57.11 |
| 2 | 25 | Annabel SHEPHERD | 13 | Deepings | 2:52.97 |
| 3 | 26 | Grace HOWITT | 17 | Grantham | 2:51.73 |
| 4 | 27 | Amy BARKER | 12 | Lincoln Vulc | 2:50.54 |
| 5 | 28 | Thea WHOTTON | 13 | Louth | 2:50.49 |
| 6 | 29 | Isla SCOTT | 15 | Lincoln Vulc | 2:46.16 |
| 7 | 30 | Emily HUNT | 16 | Lincoln Vulc | 2:46.09 |
| 8 | 31 | Isobel VAUSE | 17 | Deepings | 2:44.78 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 33 | Charlotte TURNER | 15 | Lincoln Vulc | 2:39.14 |
| 2 | 35 | Isla LORMOR | 13 | Gainsborough | 2:37.30 |
| 3 | 37 | Emily TALKES | 14 | Grantham | 2:31.29 |
| 4 | 39 | Grace MACDONALD | 16 | Grantham | 2:17.10 |
| 5 | 38 | Maisie MATTHEWS | 15 | Louth | 2:28.21 |
| 6 | 36 | Lizzy LERESCHE HANDS | 14 | Grantham | 2:35.81 |
| 7 | 34 | Olivia KING | 14 | Deepings | 2:38.80 |
| 8 | 32 | Evie DAVIES | 13 | Deepings | 2:44.24 |