EVENT 204 Female 200m Backstroke - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Rose COOPER | 9 | Wellingboro | 4:10.00 |
| 4 | 3 | Chloe LIGHT | 10 | Mansfield | 3:55.19 |
| 5 | 2 | Phoebe MILES | 10 | Hinckley | 4:00.00 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 5 | Kara HARRITY | 10 | Melton M'bry | 3:31.96 |
| 2 | 7 | Elizabeth KAIRIS | 13 | Wellingboro | 3:25.01 |
| 3 | 9 | Ren WOOD | 11 | Corby | 3:23.10 |
| 4 | 11 | Frankie LAMONT | 16 | Kettering | 3:15.10 |
| 5 | 10 | Millie DAVIES | 11 | Corby | 3:16.14 |
| 6 | 8 | Charlotte TOWNSEND | 12 | Wellingboro | 3:25.00 |
| 7 | 6 | Annie CALLAGHAN | 11 | Corby | 3:30.25 |
| 8 | 4 | Lily MORRISON | 12 | Hinckley | 3:46.68 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 13 | Gwen MACKENZIE-WILSON | 11 | Wellingboro | 3:08.00 |
| 2 | 15 | Matilda JOHNSON | 14 | Kettering | 3:05.41 |
| 3 | 17 | Jasmin DODDS | 13 | Wellingboro | 3:04.90 |
| 4 | 19 | Megan JAMES | 12 | Wellingboro | 2:59.18 |
| 5 | 18 | Isla MCCAFFERTY | 14 | Market Har | 3:00.00 |
| 6 | 16 | Olivia STIGWOOD | 12 | Rushden | 3:05.11 |
| 7 | 14 | Emma CHAMBERLAIN | 12 | Wellingboro | 3:07.60 |
| 8 | 12 | Eleni WILLIAMS | 12 | Corby | 3:14.40 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 21 | Ellie CLARKE | 14 | Hinckley | 2:56.38 |
| 2 | 23 | Edith KABERRY | 14 | Corby | 2:53.70 |
| 3 | 25 | Lilly KOWAL | 14 | Wellingboro | 2:44.45 |
| 4 | 27 | Nika BUHHAROVA | 15 | Corby | 2:43.22 |
| 5 | 26 | Harriet JENNINGS | 12 | Market Har | 2:44.44 |
| 6 | 24 | Hallie MCALINDON | 16 | Kettering | 2:50.31 |
| 7 | 22 | Evie FOWKES | 15 | Wellingboro | 2:55.00 |
| 8 | 20 | Emma AFFLECK | 14 | Kettering | 2:57.30 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 29 | Beth REBHAN | 13 | Corby | 2:38.30 |
| 2 | 31 | Jasmeen SINGH | 13 | Hinckley | 2:35.10 |
| 3 | 33 | Eva GALLAGHER | 16 | Corby | 2:33.72 |
| 4 | 35 | Ella NEWTON | 15 | Corby | 2:30.56 |
| 5 | 34 | Ava STEANS | 15 | Hinckley | 2:33.32 |
| 6 | 32 | Ella Mae PRIOR | 17 | Corby | 2:35.10 |
| 7 | 30 | Ivy BROWN | 13 | Melton M'bry | 2:37.48 |
| 8 | 28 | Isabelle PAWLOWSKI | 13 | Corby | 2:38.80 |