Open/Male - Long Course - 400m Freestyle - 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 | Martin Vermaat | Camden Swiss | 10 | City of Sheffield SS Premier Open Meet 2024 | Sheffield | 1 | 10/03/24 | 4:25.88 | 567 |
| 2 | Henry Gillam | Camden Swiss | 10 | SE London Region Summer Championships 2024 | London | 1 | 28/04/24 | 4:32.73 | 525 |
| 3 | Atai Parnes Molcho | Camden Swiss | 10 | SE London Region Summer Championships 2024 | London | 1 | 28/04/24 | 4:36.13 | 506 |
| 4 | Vincent Wun | Camden Swiss | 10 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 24/03/24 | 4:48.65 | 443 |