EVENT 13 Female 200m Breaststroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Elsie WENTWORTH | 11 | Lincoln Vulc | 4:50.00 |
| 4 | 2 | Matilda HARPER | 10 | Grantham | 4:34.38 |
| 5 | 3 | Holly LLOYD | 11 | Louth | 4:31.91 |
| 6 | 4 | Annabelle SEAGROATT | 10 | Louth | 4:30.68 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Tabitha GODDARD | 9 | Grantham | 4:30.00 |
| 2 | 6 | Ada PAGE | 10 | Grantham | 4:20.25 |
| 3 | 7 | Sophia WRIGHT | 10 | Grantham | 4:20.00 |
| 4 | 8 | Skye WARREN | 12 | Lincoln TSA | 4:16.48 |
| 5 | 9 | Jessica REEVES | 12 | Lincoln Vulc | 4:13.80 |
| 6 | 10 | Helena MCLAUGHLIN | 12 | Louth | 4:08.57 |
| 7 | 11 | Florence WEBB | 11 | Louth | 4:05.65 |
| 8 | 12 | Eleanor DE ROSE | 11 | Deepings | 4:04.42 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Poppy BRODIE | 13 | Grantham | 4:03.93 |
| 2 | 14 | Emily CLAYTON | 11 | Grantham | 4:02.22 |
| 3 | 15 | Amelie HUNT | 12 | Deepings | 4:00.00 |
| 4 | 16 | Alicja ODROBINSKA | 13 | Deepings | 3:54.90 |
| 5 | 17 | Maisie DARBY | 15 | Lincoln Vulc | 3:50.40 |
| 6 | 18 | Evelyn NICHOLLS | 12 | Grantham | 3:50.35 |
| 7 | 19 | Michelle ZOLDOWICZ | 13 | Lincoln TSA | 3:50.00 |
| 8 | 20 | Lottie Ava FLATTERS | 13 | Deepings | 3:48.29 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Lucy MARTIN | 10 | Lincoln Vulc | 3:47.42 |
| 2 | 22 | Ava LEON-BURTON | 12 | Lincoln Vulc | 3:45.00 |
| 3 | 23 | Rosie JONES | 15 | Deepings | 3:40.25 |
| 4 | 24 | Francesca WESTON | 11 | Grantham | 3:38.83 |
| 5 | 25 | Jessica SPECK | 15 | Lincoln Vulc | 3:37.04 |
| 6 | 26 | Hollie-Ann CROOK | 11 | Grantham | 3:36.68 |
| 7 | 27 | Aoife HICKEY | 11 | Deepings | 3:34.00 |
| 8 | 28 | Annabel HILLSON | 11 | Grantham | 3:32.04 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Florence HARPER | 13 | Grantham | 3:28.68 |
| 2 | 30 | Phoebe CHARMAN | 16 | Lincoln TSA | 3:27.14 |
| 3 | 31 | Amy BARKER | 12 | Lincoln Vulc | 3:25.82 |
| 4 | 32 | Honey FLOWER | 11 | Grantham | 3:23.02 |
| 5 | 33 | Madeline SURTEES | 13 | Grantham | 3:22.47 |
| 6 | 34 | Robyn CROSS | 13 | Lincoln Vulc | 3:21.56 |
| 7 | 35 | Caitlin CROSS | 13 | Lincoln Vulc | 3:20.45 |
| 8 | 36 | Ella KHAMA | 12 | Grantham | 3:20.12 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 37 | Ella HE | 13 | Gainsborough | 3:20.00 |
| 2 | 38 | Arin ELVIDGE | 12 | Lincoln Vulc | 3:19.54 |
| 3 | 39 | Ava MACKFALL | 15 | Lincoln Vulc | 3:17.83 |
| 4 | 40 | Isabelle CLAYTON | 13 | Grantham | 3:17.17 |
| 5 | 41 | Grace HOWITT | 17 | Grantham | 3:17.10 |
| 6 | 42 | Olivia KING | 14 | Deepings | 3:15.59 |
| 7 | 43 | Caitlynn EDMEADES | 12 | Deepings | 3:14.91 |
| 8 | 44 | Poppy CHAPMAN | 14 | Louth | 3:12.58 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 46 | Zoe JONES | 13 | Louth | 3:09.09 |
| 2 | 48 | Margot MARKS | 12 | Lincoln Vulc | 3:07.60 |
| 3 | 50 | Mia PARAPIJONAVICIUTE | 17 | Grantham | 3:04.56 |
| 4 | 52 | Maisie MATTHEWS | 15 | Louth | 2:48.55 |
| 5 | 51 | Emily TALKES | 14 | Grantham | 3:02.32 |
| 6 | 49 | Arabella PEARCE | 13 | Louth | 3:05.00 |
| 7 | 47 | Luiza KOZIOL | 17 | Lincoln TSA | 3:08.06 |
| 8 | 45 | Sophie FOSTER | 15 | Louth | 3:12.22 |