EVENT 201 Female 09/Over 100m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 2 | Kara HARRITY | 9 | Melton M'bry | |
| 4 | 4 | Lenorah MISIUDA | 10 | Melton M'bry | 2:10.20 |
| 5 | 3 | Evangeline KINNEAR | 10 | Grantham | 2:21.43 |
| 6 | 1 | Erin MELLER | 10 | Louth | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 6 | Holly GLASSFORD | 10 | Melton M'bry | 2:06.17 |
| 2 | 8 | Honey FLOWER | 9 | Grantham | 2:05.00 |
| 3 | 10 | Florence HARPER | 11 | Grantham | 2:01.00 |
| 4 | 12 | Emily CLAYTON | 10 | Grantham | 2:00.48 |
| 5 | 11 | Violet NISBET | 13 | Grantham | 2:01.00 |
| 6 | 9 | Annabel HILLSON | 9 | Grantham | 2:04.90 |
| 7 | 7 | Matilda MCDONNELL | 11 | Grantham | 2:06.07 |
| 8 | 5 | Lucy PITCHER | 12 | Newark | 2:10.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 14 | Abigail TAYLOR | 10 | Grantham | 1:59.30 |
| 2 | 17 | Ruby NISBET | 10 | Grantham | 1:54.46 |
| 3 | 19 | Zuzanna ZANIEWSKA | 16 | Boston | 1:51.89 |
| 4 | 21 | Ana BASCARAU | 11 | Boston | 1:49.99 |
| 5 | 20 | Olivia CHARITY | 12 | Grantham | 1:51.18 |
| 6 | 18 | Elspeth MASON-SMITH | 10 | Louth | 1:52.29 |
| 7 | 15 | Courtney GOWLING | 13 | Skegness | 1:58.47 |
| 8 | 13 | Florence WEBB | 9 | Louth | 2:00.00 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Izabella ZANIEWSKA | 11 | Boston | 1:48.43 |
| 2 | 25 | Willow HIBBITT | 9 | Melton M'bry | 1:46.07 |
| 3 | 27 | Amelie MORRIS | 12 | Boston | 1:43.42 |
| 4 | 29 | Ava-Grace GREGORY | 12 | Grantham | 1:41.45 |
| 5 | 28 | Hollie-Anne CROOK | 10 | Grantham | 1:43.23 |
| 6 | 26 | Elisabeth KINNEAR | 14 | Grantham | 1:43.51 |
| 7 | 24 | Lilly THROWER | 10 | Louth | 1:46.16 |
| 8 | 22 | Evie BOURNE | 11 | Melton M'bry | 1:49.58 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Helena HAMILTON | 12 | Grantham | 1:40.74 |
| 2 | 33 | Paris CABORN | 11 | Louth | 1:39.51 |
| 3 | 35 | Ella KHAMA | 10 | Grantham | 1:38.30 |
| 4 | 37 | Isabelle CLAYTON | 11 | Grantham | 1:37.10 |
| 5 | 36 | Minerva WILLIAMS | 12 | Melton M'bry | 1:37.94 |
| 6 | 34 | Poppy CHAPMAN | 12 | Louth | 1:38.54 |
| 7 | 32 | Octavia SHEARN | 11 | Grantham | 1:40.50 |
| 8 | 30 | Florence SHEPHERD | 12 | Gainsborough | 1:40.84 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | Eden DYSON | 12 | Grantham | 1:36.18 |
| 2 | 41 | Charlotte JAY | 11 | Grantham | 1:34.11 |
| 3 | 43 | Katie DAGG | 13 | March | 1:32.93 |
| 4 | 45 | Abbie MACKIE | 14 | March | 1:30.63 |
| 5 | 44 | Harriet FEAVIOUR | 9 | March | 1:32.67 |
| 6 | 42 | Nyah SCOTT | 11 | March | 1:33.04 |
| 7 | 40 | Mia JONES | 11 | March | 1:35.94 |
| 8 | 38 | Amy FOSTER | 10 | Louth | 1:36.42 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 47 | Lillie DRENNAN | 14 | Melton M'bry | 1:30.18 |
| 2 | 49 | Kitty PAYNE | 13 | March | 1:28.68 |
| 3 | 51 | Juliette KING | 12 | Grantham | 1:28.13 |
| 4 | 53 | Alicia-Rose OSWIN | 16 | Boston | 1:27.73 |
| 5 | 52 | Lexie SHEWAN | 13 | Grantham | 1:27.84 |
| 6 | 50 | Maya GLASSFORD | 13 | Melton M'bry | 1:28.64 |
| 7 | 48 | Mia PARAPIJONAVICIUTE | 15 | Grantham | 1:29.86 |
| 8 | 46 | Ella HE | 11 | Gainsborough | 1:30.28 |
| Heat Number - 8 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 56 | Yasmine WAITE | 14 | March | 1:25.77 |
| 2 | 58 | Vilte ROPEIKAITE | 15 | Boston | 1:25.47 |
| 3 | 60 | Erin NORTON | 13 | Boston | 1:24.04 |
| 4 | 62 | Annie WEBSTER | 12 | Grantham | 1:23.65 |
| 5 | 61 | Lucy ABBOTT | 12 | Grantham | 1:23.96 |
| 6 | 59 | Sienna MERCER | 12 | Melton M'bry | 1:25.29 |
| 7 | 57 | Niamh O'DONOGHUE | 12 | March | 1:25.62 |
| 8 | 54 | Eva FIRTH | 15 | Melton M'bry | 1:27.00 |
| Heat Number - 9 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 64 | Sophie SHARPE | 13 | Melton M'bry | 1:22.45 |
| 2 | 67 | Jane BEECH | 14 | Melton M'bry | 1:21.89 |
| 3 | 69 | Elena ALDENHOFF-KELLY | 15 | Grantham | 1:21.19 |
| 4 | 71 | Amy TAYLOR | 13 | Grantham | 1:19.52 |
| 5 | 70 | Amelia BIRD | 13 | Skegness | 1:19.66 |
| 6 | 68 | Grace HOWITT | 15 | Grantham | 1:21.77 |
| 7 | 66 | Annabelle JAY | 12 | Grantham | 1:21.90 |
| 8 | 63 | Emilija IVANOVA | 15 | Boston | 1:22.78 |
| Heat Number - 10 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 73 | Ellena HOWITT | 13 | Grantham | 1:19.34 |
| 2 | 75 | Harriet MCCORMACK | 14 | Grantham | 1:17.81 |
| 3 | 77 | Isobel ALLSOP | 14 | Grantham | 1:15.87 |
| 4 | 79 | Grace TURNER | 16 | Grantham | 1:09.46 |
| 5 | 78 | Isla GRAY | 14 | Grantham | 1:13.84 |
| 6 | 76 | Milen MERRITT | 12 | Melton M'bry | 1:17.18 |
| 7 | 74 | Lucy WILLATTS | 12 | Grantham | 1:19.06 |
| 8 | 72 | Ivy BROWN | 12 | Melton M'bry | 1:19.36 |