Open/Male - Short Course - 400m Freestyle - Camden Swiss Cottage SC - 15 Years Age Group - At 31st December 2021
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Nikita Markov | Camden Swiss | 06 | Ealing SC 2023 XMAS County Qualifier | Northolt | 3 | 03/12/23 | 5:07.69 | 328 |