EVENT 7 Boy/Girl 07 Yrs/Over 400m IM - Heats
| Heat Number - 1 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 2 | 1 | Alice WATTS | 13 | Co Cambridge | 6:56.64 |
| 3 | 3 | Mawulinam ITO | 10 | Co Cambridge | 6:45.00 |
| 4 | 5 | Jasmine CHRISTMAS | 12 | Co Cambridge | 6:30.00 |
| 5 | 4 | Sofia ANDRE-BARRETT | 12 | Co Cambridge | 6:40.00 |
| 6 | 2 | Alina TURCHYN | 15 | Co Cambridge | 6:53.18 |
| Heat Number - 2 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 7 | William WRATTEN | 12 | Co Cambridge | 6:30.00 |
| 2 | 9 | Anna GUILLEN MONTANES | 13 | Co Cambridge | 6:20.00 |
| 3 | 11 | Scarlett JOSLIN | 13 | Co Cambridge | 6:15.00 |
| 4 | 13 | Vasilisa SHAMPANOVA | 14 | Co Cambridge | 5:54.88 |
| 5 | 12 | Nicola CARNIATO | 45 | Co Cambridge | 6:00.00 |
| 6 | 10 | George CARTER | 13 | Co Cambridge | 6:16.24 |
| 7 | 8 | Marton MOLNAR | 11 | Co Cambridge | 6:20.00 |
| 8 | 6 | Juan MODOLELL | 13 | Co Cambridge | 6:30.00 |
| Heat Number - 3 |
| Lane | Comp.No. | Name | AaD | Club | Time |
| 1 | 16 | Batu SENTURK | 14 | Co Cambridge | 5:30.47 |
| 2 | 19 | Ryan WALL | 14 | Co Cambridge | 5:09.30 |
| 3 | 21 | Matthew MONIE | 16 | Co Cambridge | 5:00.50 |
| 4 | 23 | Edward ORMSBY | 14 | Co Cambridge | 4:55.14 |
| 5 | 22 | Christopher WILLIAMSON | 16 | Co Cambridge | 4:57.76 |
| 6 | 20 | Matilda RANSOME | 15 | Co Cambridge | 5:05.50 |
| 7 | 17 | James WILLIAMSON | 14 | Co Cambridge | 5:23.20 |
| 8 | 14 | Jeanne RIMAUD | 25 | Co Cambridge | 5:40.00 |