EVENT 304 Female 200m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Matilda JOHNSON | 14 | Kettering | 3:55.99 |
| 3 | 3 | Merryn FULFORD | 11 | Daventry | 3:55.10 |
| 4 | 5 | Kaylyn PRIOR | 11 | Corby | 3:49.30 |
| 5 | 4 | Sian DUNLOP | 26 | Wellingboro | 3:50.01 |
| 6 | 2 | Kara HARRITY | 10 | Melton M'bry | 3:55.10 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Eadie GRIES | 13 | Daventry | 3:47.04 |
| 2 | 9 | Eva MUTCH | 13 | Daventry | 3:32.59 |
| 3 | 11 | Daisy HARTNETT | 11 | Hinckley | 3:25.40 |
| 4 | 13 | Ren WOOD | 11 | Corby | 3:23.09 |
| 5 | 12 | Millie DAVIES | 11 | Corby | 3:23.20 |
| 6 | 10 | Jessica KEMP | 11 | Wellingboro | 3:29.60 |
| 7 | 8 | Lucy DONNELLY | 12 | Corby | 3:46.80 |
| 8 | 6 | Emma CHAMBERLAIN | 12 | Wellingboro | 3:48.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Jocelyn JORDAN | 12 | Corby | 3:22.43 |
| 2 | 17 | Lacey BROADWAY | 12 | Kettering | 3:21.70 |
| 3 | 19 | Amelie TANNER | 14 | Corby | 3:19.80 |
| 4 | 21 | Violet FRENCH | 12 | Wellingboro | 3:17.00 |
| 5 | 20 | Lily FULFORD | 13 | Daventry | 3:17.59 |
| 6 | 18 | Olivia HAJO | 14 | Corby | 3:20.12 |
| 7 | 16 | Esme SMITH | 12 | Corby | 3:22.16 |
| 8 | 14 | Willow LERA | 12 | Nene Valley | 3:22.80 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Everly FAVIER | 12 | Wellingboro | 3:15.00 |
| 2 | 25 | Evie FOWKES | 15 | Wellingboro | 3:14.31 |
| 3 | 27 | Chloe PERKINS | 14 | Kettering | 3:12.64 |
| 4 | 29 | Ella FAIRBAIRN | 14 | Kettering | 3:11.61 |
| 5 | 28 | Willow HIBBITT | 10 | Melton M'bry | 3:11.70 |
| 6 | 26 | Sara-Maria CAIA | 13 | Corby | 3:13.00 |
| 7 | 24 | Jasmin DODDS | 13 | Wellingboro | 3:14.78 |
| 8 | 22 | Eleni WILLIAMS | 12 | Corby | 3:15.20 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Millie DAY | 17 | Rushden | 3:08.30 |
| 2 | 33 | Zoe LARMOUR | 13 | Daventry | 3:08.00 |
| 3 | 35 | Frankie LAMONT | 16 | Kettering | 3:05.20 |
| 4 | 37 | Abigail TOMLINSON | 12 | Corby | 3:00.30 |
| 5 | 36 | Hannah CHADWICK | 15 | Daventry | 3:03.25 |
| 6 | 34 | Poppy OKEIFE | 12 | Daventry | 3:06.38 |
| 7 | 32 | Cora THOW | 14 | Corby | 3:08.04 |
| 8 | 30 | Megan BATES | 14 | Melton M'bry | 3:10.18 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | Codie LOWE | 14 | Corby | 2:58.00 |
| 2 | 41 | Ruby CUMMINS | 20 | Wellingboro | 2:56.56 |
| 3 | 43 | Neve BOOKER | 13 | Wellingboro | 2:56.06 |
| 4 | 45 | Nika BUHHAROVA | 15 | Corby | 2:54.78 |
| 5 | 44 | Saxon SWANN | 14 | Corby | 2:54.80 |
| 6 | 42 | Lucy BOLTON | 13 | Rushden | 2:56.40 |
| 7 | 40 | Jasmine REYNOLDS | 15 | Rushden | 2:57.60 |
| 8 | 38 | Emma AFFLECK | 14 | Kettering | 3:00.10 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 47 | Evie YOUNG | 15 | Market Har | 2:54.13 |
| 2 | 49 | Imogen BURGER | 15 | Corby | 2:52.60 |
| 3 | 51 | Riley WEBER | 11 | Corby | 2:52.24 |
| 4 | 53 | Elsie BALDWIN | 11 | Hinckley | 2:51.70 |
| 5 | 52 | Georgia SMITH | 16 | Corby | 2:51.79 |
| 6 | 50 | Evelyn COPPA | 15 | Corby | 2:52.40 |
| 7 | 48 | Martha BOOKER | 13 | Wellingboro | 2:53.30 |
| 8 | 46 | Hallie MCALINDON | 16 | Kettering | 2:54.73 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 55 | Aimee FRASER | 16 | Hinckley | 2:49.12 |
| 2 | 57 | S WILLIAMS-BROWN | 12 | Market Har | 2:47.84 |
| 3 | 59 | Skylar GLENDENNING | 13 | Corby | 2:47.00 |
| 4 | 61 | Hannah MARSDEN | 15 | Daventry | 2:45.53 |
| 5 | 60 | Harriet JENNINGS | 12 | Market Har | 2:46.20 |
| 6 | 58 | Aaliyah BEETSON | 16 | Wellingboro | 2:47.64 |
| 7 | 56 | Kennedy MCHUGH | 14 | Corby | 2:48.62 |
| 8 | 54 | Emma BREAG | 16 | Melton M'bry | 2:49.73 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 63 | Jessica BARRETT | 13 | Kettering | 2:44.14 |
| 2 | 65 | Alexa PARKER | 16 | Corby | 2:40.00 |
| 3 | 67 | Ava STEANS | 15 | Hinckley | 2:37.03 |
| 4 | 69 | Beau CUNNINGHAM | 16 | Corby | 2:30.40 |
| 5 | 68 | Beth REBHAN | 13 | Corby | 2:36.70 |
| 6 | 66 | Elisa GIRAUD | 13 | Corby | 2:37.60 |
| 7 | 64 | Sophie BRUTNALL | 14 | Market Har | 2:43.98 |
| 8 | 62 | Charlotte ELLIS | 15 | Daventry | 2:44.82 |