EVENT 623 Girl 11/14 Yrs 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Olivia Croft | 11 | Cheshunt | 5:33.93 |
| 3 | 3 | Nicole Cashin | 12 | Team Luton | 5:31.40 |
| 4 | 5 | Cassandra Pereira | 12 | Hatfield | 5:29.39 |
| 5 | 4 | Freya Gyselings | 12 | Co Peterboro | 5:29.79 |
| 6 | 2 | Katie-Mae Abrahams | 12 | Putteridge | 5:33.30 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | E Barth-Wehrenalp | 12 | Basildon Ph | 5:27.66 |
| 2 | 9 | Holly Katasi | 12 | Linslade | 5:19.30 |
| 3 | 11 | Molly Burrows | 13 | Co Peterboro | 5:14.34 |
| 4 | 13 | Tyra Sajudeen | 12 | Co Cambridge | 5:12.57 |
| 5 | 12 | Bethany Rumsby | 13 | Norwich Swan | 5:13.50 |
| 6 | 10 | Lily Steel | 12 | teamipswich | 5:15.47 |
| 7 | 8 | Daisy Jubb | 12 | Co St Albans | 5:26.61 |
| 8 | 6 | Gigi Raubitschek-Smith | 12 | Hatfield | 5:28.99 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 15 | Maya Sangiorgio | 13 | Co Peterboro | 5:11.59 |
| 2 | 17 | M Tramontano Wells | 13 | Hertford | 5:10.29 |
| 3 | 19 | Lucy Clarke | 12 | Chelmsford | 5:08.66 |
| 4 | 21 | Yasmine Ollerenshaw | 13 | Flitwick | 5:07.50 |
| 5 | 20 | Amelia Fenner | 12 | Basildon Ph | 5:08.40 |
| 6 | 18 | Jemima Lashmar | 13 | teamipswich | 5:09.67 |
| 7 | 16 | Lois Smith | 12 | Basildon Ph | 5:10.57 |
| 8 | 14 | Sophie Stelmach | 13 | Stevenage | 5:12.12 |
| Heat Number - 4 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 23 | Charlie Duce | 13 | Modernian | 5:04.76 |
| 2 | 25 | Gabriella Meyer | 13 | Chelmsford | 5:03.40 |
| 3 | 27 | Jasmine Hall | 12 | Basildon Ph | 5:01.53 |
| 4 | 29 | Eveline Gaydon | 13 | teamipswich | 5:00.40 |
| 5 | 28 | Anabelle Kett | 13 | Co Peterboro | 5:01.34 |
| 6 | 26 | Erin Barber | 12 | Newmarket | 5:02.15 |
| 7 | 24 | Emilia Rayner | 13 | Halstead | 5:03.55 |
| 8 | 22 | Antonia Elias | 13 | Hatfield | 5:07.27 |
| Heat Number - 5 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 31 | Eleanor McLeod | 14 | Putteridge | 4:59.00 |
| 2 | 33 | Bethany Crawley | 14 | teamipswich | 4:58.90 |
| 3 | 35 | Francesca Howell | 14 | Chelmsford | 4:56.61 |
| 4 | 37 | Amelia Saunders | 14 | Leiston | 4:55.92 |
| 5 | 36 | Cailin Hehir | 14 | Watford SC | 4:56.05 |
| 6 | 34 | Gabriella Troman | 13 | Colchester | 4:56.78 |
| 7 | 32 | Leah Mason | 14 | Colchester | 4:58.98 |
| 8 | 30 | Summer Buckland | 13 | Harlow Pen | 4:59.81 |
| Heat Number - 6 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 39 | Grace Robinson | 13 | St Felix Sch | 4:55.57 |
| 2 | 41 | Lily Farr | 14 | Flitwick | 4:54.40 |
| 3 | 43 | Darcy Gladwell | 14 | teamipswich | 4:52.37 |
| 4 | 45 | Amelia Porzio | 14 | Putteridge | 4:51.06 |
| 5 | 44 | Abigail Riches | 14 | Co Norwich | 4:51.20 |
| 6 | 42 | Lily Hayward | 14 | Epping For't | 4:52.48 |
| 7 | 40 | Olivia Minett | 14 | Co Peterboro | 4:55.19 |
| 8 | 38 | Millie Harris | 14 | Wisbech | 4:55.60 |
| Heat Number - 7 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 47 | Katerina Di Maria | 14 | Co Norwich | 4:48.80 |
| 2 | 49 | Weronika Mikolajewska | 14 | Co Peterboro | 4:47.29 |
| 3 | 51 | Poppy Magill | 14 | Putteridge | 4:45.20 |
| 4 | 53 | Chloe Barnard | 13 | Basildon Ph | 4:39.35 |
| 5 | 52 | Ella Dawson | 14 | Chelmsford | 4:43.49 |
| 6 | 50 | Annie McLeod | 14 | Putteridge | 4:45.50 |
| 7 | 48 | Ever Ives | 13 | Hatfield | 4:48.22 |
| 8 | 46 | Olivia Mahoney | 14 | Co Peterboro | 4:50.93 |