Open/Male - Long Course - 50m Butterfly - Camden Swiss Cottage SC - 10 Years Age Group - At 31st December 2019
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Sander Taboada | Camden Swiss | 09 | 2024 Middlesex County Championships | London | 1 | 27/01/24 | 31.72 | 346 |