EVENT 105 Women Open 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 3 | 1 | Violet TURNER | 12 | Gwich Royals | 6:25.22 |
| 4 | 2 | Emilia NARKEVIC | 12 | Maidstone SC | 6:15.74 |
| 5 | 3 | Emily STONE | 12 | Sevenoaks | 6:09.15 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 4 | Isla TURNER | 12 | Gwich Royals | 6:06.85 |
| 2 | 5 | Ruby HALL | 12 | White Oak | 6:04.28 |
| 3 | 6 | Lowri WILLIAMS | 12 | Sevenoaks | 6:03.09 |
| 4 | 8 | Reese HUCKLE | 13 | RTW Monson | 6:00.48 |
| 5 | 9 | Mia HUGHES | 13 | Bromley | 5:54.08 |
| 6 | 10 | Isabella ARUNDELL | 13 | Maidstone SC | 5:48.36 |
| 7 | 11 | Jessica EVERETT | 14 | Gwich Royals | 5:47.85 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Evie POTTICARY | 14 | Thanet Swim | 5:45.95 |
| 2 | 13 | Lilly DELLER | 13 | Dartford | 5:44.26 |
| 3 | 14 | Lilia FORNASIER | 14 | Sevenoaks | 5:42.71 |
| 4 | 15 | Abigail SMILEY | 13 | RTW Monson | 5:41.30 |
| 5 | 16 | Kayla MOERMAN | 16 | Beachfield | 5:40.30 |
| 6 | 17 | Molly LOWN | 17 | Dover Life | 5:40.12 |
| 7 | 18 | Zoe EVERETT | 16 | Gwich Royals | 5:39.81 |
| 8 | 19 | I NIGHTINGALE-ELLIS | 14 | RTW Monson | 5:38.71 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 22 | Scarlett DAVIE | 14 | White Oak | 5:34.86 |
| 2 | 24 | Amelia TOVEY | 15 | Sevenoaks | 5:34.07 |
| 3 | 26 | Amie HAWKINS | 20 | Bexley | 5:31.53 |
| 4 | 29 | Olexa MILES | 14 | Thanet Swim | 5:27.85 |
| 5 | 28 | Rae STRAUPENIEKS | 18 | Bromley | 5:28.13 |
| 6 | 25 | Abigail HOGBEN | 17 | Dover Life | 5:31.64 |
| 7 | 23 | Amalie SMITH | 13 | Tonbridge | 5:34.68 |
| 8 | 20 | Rebecca PHILLIPS | 18 | Maidstone SC | 5:37.51 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Martha ROBERTS | 16 | Sevenoaks | 5:24.40 |
| 2 | 33 | Eliza POWELL | 18 | Bromley | 5:22.50 |
| 3 | 35 | Martyna KARABACZ | 14 | Gwich Royals | 5:21.40 |
| 4 | 38 | Annie SANDERS | 15 | Gwich Royals | 5:18.80 |
| 5 | 36 | Fern GRAY | 15 | Sevenoaks | 5:21.34 |
| 6 | 34 | Jasmine WALLACE | 19 | Sevenoaks | 5:21.47 |
| 7 | 32 | Ivy HAGGERTY | 14 | Thanet Swim | 5:23.63 |
| 8 | 30 | Rosie POPE | 13 | Thanet Swim | 5:24.78 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 40 | Abbie OUTRAM | 16 | Maidstone SC | 5:16.30 |
| 2 | 42 | Lilly-Marie DERRY | 16 | Sevenoaks | 5:12.99 |
| 3 | 44 | Emilia OLIVER | 14 | RTW Monson | 5:07.26 |
| 4 | 46 | Caitlin EBBAGE | 17 | Tonbridge | 5:04.91 |
| 5 | 45 | Maddison LAY | 18 | Thanet Swim | 5:06.40 |
| 6 | 43 | Evie SMITH | 15 | Maidstone SC | 5:10.88 |
| 7 | 41 | Grace CUMMINGS | 16 | Thanet Swim | 5:13.30 |
| 8 | 39 | Mia COLYER | 17 | Black Lion | 5:17.40 |