Female - Long Course - 400m Individual Medley - Camden Swiss Cottage SC - 10 Years Age Group - At 31st December 2018
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ines Guimond-Beetham | Camden Swiss | 08 | City of Sheffield SS Premier Open Meet 2024 | Sheffield | 1 | 10/03/24 | 5:00.21 | 694 |
| 2 | Lucy Fielding | Camden Swiss | 08 | SE London Region Summer Championships 2024 | London | 1 | 27/04/24 | 5:10.91 | 625 |
| 3 | Sophia Gomez De Membrillera Daly | Camden Swiss | 08 | Cardiff International Open Meet 2023 | Cardiff | 1 | 20/05/23 | 5:37.24 | 489 |
| 4 | Keira Osorio | Camden Swiss | 08 | Cardiff International Open Meet 2023 | Cardiff | 1 | 20/05/23 | 5:52.08 | 430 |