Open/Male - Long Course - 50m Butterfly - Camden Swiss Cottage SC - 12 Years Age Group - At 31st December 2018
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Nikita Markov | Camden Swiss | 06 | London Youth Games 2023 | London | 1 | 01/07/23 | 29.36 | 436 |