Female - Long Course - 50m Butterfly - Camden Swiss Cottage SC - 12 Years Age Group - At 31st December 2022
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Evie Tran | Camden Swiss | 10 | 2024 Middlesex County Championships | London | 1 | 28/01/24 | 31.31 | 475 |
| 2 | Ruby Ruzzaman | Camden Swiss | 10 | SE London Summer Championships 2023 | Stratford | 1 | 29/04/23 | 33.24 | 396 |
| 3 | Tara Quin | Camden Swiss | 10 | 2024 Middlesex County Championships | London | 1 | 28/01/24 | 34.79 | 346 |
| 4 | Analise Comer | Camden Swiss | 10 | 2024 Wycombe Dual Award (Level 3) Long Course Meet | High Wycombe | 3 | 17/02/24 | 35.61 | 322 |
| 5 | Alysa Perez Guzman | Camden Swiss | 10 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 24/03/24 | 35.68 | 320 |
| 6 | Lily Morrison | Camden Swiss | 10 | Cardiff International Open Meet 2023 | Cardiff | 1 | 20/05/23 | 40.33 | 222 |
| 7 | Romilly Morrison | Camden Swiss | 10 | Winchester City Penguins Summer Scorcher 2023 | Winchester | 3 | 22/07/23 | 42.21 | 193 |
| 8 | Chloe De Lagarde | Camden Swiss | 10 | Cardiff International Open Meet 2023 | Cardiff | 1 | 20/05/23 | 45.74 | 152 |