EVENT 502 Girl 10 Yrs/Over 400m Freestyle - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 2 | Isabella MAHONEY | 12 | Co Peterboro | 6:23.93 |
| 2 | 4 | Evie WILSON | 12 | Co Cambridge | 6:14.93 |
| 3 | 6 | Molly BURROWS | 12 | Co Peterboro | 5:57.49 |
| 4 | 10 | Juniper WINGATE | 14 | Co Cambridge | 5:36.30 |
| 5 | 9 | Haoning LIU | 13 | Co Cambridge | 5:40.93 |
| 6 | 5 | India CLEMENT | 10 | West Suffolk | 6:14.43 |
| 7 | 3 | Poppy MOORE | 10 | West Suffolk | 6:17.20 |
| 8 | 1 | Emily BRIDGES | 10 | Co Peterboro | 6:44.90 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 12 | Tyra SAJUDEEN | 11 | Co Cambridge | 5:31.25 |
| 2 | 14 | Ruby BRACE | 13 | Co Peterboro | 5:28.55 |
| 3 | 16 | Zara RICHARDS | 15 | Co Cambridge | 5:28.34 |
| 4 | 18 | Heidi BRUGGRABER | 15 | Co Cambridge | 5:08.31 |
| 5 | 17 | Scarlett JOSLIN | 14 | Co Cambridge | 5:11.75 |
| 6 | 15 | Maya SANGIORGIO | 13 | Co Peterboro | 5:28.50 |
| 7 | 13 | Eloise MANTON | 14 | West Suffolk | 5:29.37 |
| 8 | 11 | Anna GUILLEN MONTANES | 13 | Co Cambridge | 5:32.76 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 20 | Kiera BROAD | 14 | West Suffolk | 5:07.20 |
| 2 | 22 | Olivia LYDON | 16 | Royston | 5:03.66 |
| 3 | 26 | Charlotte SHAW | 15 | Co Peterboro | 4:53.81 |
| 4 | 28 | Indy SCOTT | 16 | Co Cambridge | 4:43.48 |
| 5 | 27 | Georgia HOLGATE | 14 | Co Cambridge | 4:50.30 |
| 6 | 25 | Isla FULLUCK-HOLMES | 14 | Co Peterboro | 4:55.64 |
| 7 | 21 | Anabelle KETT | 12 | Co Peterboro | 5:05.44 |
| 8 | 19 | Isabel MOORE | 13 | West Suffolk | 5:08.26 |