Female - Long Course - 50m Butterfly - Camden Swiss Cottage SC - 12 Years Age Group - At 31st December 2020
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ines Guimond-Beetham | Camden Swiss | 08 | SE London Summer Championships 2023 | Stratford | 1 | 29/04/23 | 29.09 | 592 |
| 2 | Lucy Fielding | Camden Swiss | 08 | SE London Summer Championships 2023 | Stratford | 1 | 29/04/23 | 30.41 | 518 |
| 3 | Penelope Kessler | Camden Swiss | 08 | SE London Summer Championships 2023 | Stratford | 1 | 29/04/23 | 31.77 | 454 |
| 4 | Bianca Jamal | Camden Swiss | 08 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 24/03/24 | 31.84 | 451 |
| 5 | Keira Osorio | Camden Swiss | 08 | 2024 Middlesex County Championships | London | 1 | 28/01/24 | 32.59 | 421 |
| 6 | Dahlia Bonfiglio | Camden Swiss | 08 | Cardiff International Open Meet 2023 | Cardiff | 1 | 20/05/23 | 32.87 | 410 |
| 7 | Sophia Gomez De Membrillera Daly | Camden Swiss | 08 | Cardiff International Open Meet 2023 | Cardiff | 1 | 20/05/23 | 32.92 | 408 |