Open/Male - Short Course - 400m Individual Medley - Camden Swiss Cottage SC - 10 Years Age Group - At 31st December 2020
| Rank | Name | Ranked Club | YoB | Meet Name | Venue | Level | Date | Time | FINA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Martin Vermaat | Camden Swiss | 10 | 2023 Wycombe SC L3 County & Regional Qualifier | High Wycombe | 3 | 24/11/23 | 4:55.41 | 502 |
| 2 | Vincent Wun | Camden Swiss | 10 | Winchester City Penguins Winter Autumn Qualifier | Winchester | 2 | 08/10/23 | 5:20.78 | 392 |
| 3 | Henry Gillam | Camden Swiss | 10 | NOVA Centurion November Meet 2023 | Nottingham | 2 | 18/11/23 | 5:21.23 | 390 |
| 4 | Philip Borisov | Camden Swiss | 10 | Camden Swiss Cottage SC Club Championships 2023 | Swiss Cottage LC | 4 | 09/06/23 | 6:06.85 | 262 |
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