Female - Long Course - 400m Individual Medley - Camden Swiss Cottage SC - 11 Years Age Group - At 31st December 2020
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Isabella Thanassoulas | Camden Swiss | 09 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 23/03/24 | 5:17.49 | 587 |
| 2 | Katy Wun | Camden Swiss | 09 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 23/03/24 | 5:24.21 | 551 |
| 3 | Tess Jackson | Camden Swiss | 09 | Winchester City Penguins Summer Scorcher 2023 | Winchester | 3 | 23/07/23 | 5:39.38 | 480 |
| 4 | Jade Trincano | Camden Swiss | 09 | 2024 Middlesex County Championships | Hillingdon | 1 | 03/02/24 | 5:43.82 | 462 |
| 5 | Maya Al Faisal | Camden Swiss | 09 | Winchester City Penguins Summer Scorcher 2023 | Winchester | 3 | 23/07/23 | 5:53.52 | 425 |