EVENT 302 Female 100m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Beatrice WATSON | 11 | West Suffolk | |
| 3 | 3 | Evania RAMIREZ DUTTON | 12 | Team Luton | |
| 4 | 5 | Zoe KIELY | 16 | Dunstable | |
| 5 | 4 | Connie FLITTON | 14 | Dunstable | |
| 6 | 2 | Charlotte BUCKTROUT | 9 | Linslade | |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | Millie BUSBY | 9 | Team Luton | |
| 2 | 9 | Lois DOUGLAS | 12 | Berkhamsted | |
| 3 | 11 | Alicia SPURWAY | 9 | Linslade | |
| 4 | 13 | Alia SEKOWSKA | 9 | Bletchley | 1:59.69 |
| 5 | 12 | Tia NICHOLLS | 9 | Dunstable | |
| 6 | 10 | Evelyn NELDER | 11 | West Suffolk | |
| 7 | 8 | Monika BOSAS | 10 | Team Luton | |
| 8 | 6 | Caitlyn GARSEE | 13 | Team Luton | |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 17 | Laia ZURBANO TORRE | 10 | St Ives | 1:49.67 |
| 2 | 19 | Eleanor GROSSEY | 12 | Dunstable | 1:45.98 |
| 3 | 21 | Grace FAHEY | 9 | Berkhamsted | 1:43.46 |
| 4 | 25 | Matilda SPINK | 11 | St Ives | 1:40.47 |
| 5 | 23 | Lena SEKOWSKA | 10 | Bletchley | 1:41.56 |
| 6 | 20 | Natasha GREEN | 10 | Verulam | 1:43.46 |
| 7 | 18 | Isabelle MAY | 15 | Linslade | 1:47.70 |
| 8 | 16 | Clara WEEDEN | 11 | St Ives | 1:52.51 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 27 | Anna-Sophia HEYES | 12 | Linslade | 1:38.71 |
| 2 | 29 | Alice CRIDLAND | 15 | St Ives | 1:38.13 |
| 3 | 31 | Parisha CHAUHAN-FRANCE | 11 | Dunstable | 1:36.72 |
| 4 | 33 | Violet SWATMAN | 12 | Berkhamsted | 1:32.39 |
| 5 | 32 | Inaaya SAMPONG | 12 | Team Luton | 1:34.94 |
| 6 | 30 | Matilda CHINNECK | 11 | Berkhamsted | 1:36.72 |
| 7 | 28 | Aoife SEARS | 12 | Dunstable | 1:38.70 |
| 8 | 26 | Aila SMITH | 10 | Verulam | 1:39.42 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 35 | Orla GALLEN | 11 | Verulam | 1:31.91 |
| 2 | 37 | Zuzanna WALASZEK | 12 | Team Luton | 1:30.33 |
| 3 | 39 | Sophie LAPUCHA | 11 | Team Luton | 1:27.99 |
| 4 | 41 | Alanna NJAWAYA | 13 | Team Luton | 1:26.60 |
| 5 | 40 | Darcie CADER | 13 | Berkhamsted | 1:27.77 |
| 6 | 38 | Fifi-Grace VIDAL | 13 | Bletchley | 1:29.41 |
| 7 | 36 | Ella PLUMB | 11 | West Suffolk | 1:31.69 |
| 8 | 34 | Alexandra TERNOUTH | 14 | Verulam | 1:32.03 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 43 | Catherine HATHERLY | 11 | Hatfield | 1:24.42 |
| 2 | 47 | Elsea HALL | 13 | St Ives | 1:22.89 |
| 3 | 49 | Edith LEWIS | 13 | St Ives | 1:21.74 |
| 4 | 51 | Isla HAMILTON | 14 | St Ives | 1:19.62 |
| 5 | 50 | Ameline KRECKEL | 13 | Berkhamsted | 1:20.08 |
| 6 | 48 | Eleanor WEEDEN | 18 | St Ives | 1:22.60 |
| 7 | 44 | Violet RHODES | 12 | Team Luton | 1:23.95 |
| 8 | 42 | Freya WOODING | 12 | St Ives | 1:24.78 |