Open/Male - Long Course - 400m Individual Medley - Camden Swiss Cottage SC - 11 Years Age Group - At 31st December 2022
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Finn Mathers | Camden Swiss | 11 | 2024 Middlesex County Championships | Hillingdon | 1 | 04/02/24 | 5:31.34 | 392 |
| 2 | Luc Bonfiglio | Camden Swiss | 11 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 24/03/24 | 6:01.17 | 302 |
| 3 | Alexander Thanassoulas | Camden Swiss | 11 | Newham & UEL SC National Qualifier Open Meet 2024 | Stratford | 1 | 24/03/24 | 6:04.29 | 294 |
| 4 | Zoran Butorac | Camden Swiss | 11 | Northampton SC Winter Festival 2023 | Corby | 1 | 17/12/23 | 6:10.83 | 279 |