Russian Indoor Junior Championships 2021, 400 m, Male
| Place | Athlete | Best result |
|---|---|---|
| 1 | Razumov Dmitry | 46.90i |
| 2 | Savlukov Savely | 47.10i |
| 3 | Matveev Nikita | 47.30i |
| 4 | Vodichev Aleksandr | 47.30i |
| Place | Athlete | Best result |
|---|---|---|
| 1 | Razumov Dmitry | 46.90i |
| 2 | Savlukov Savely | 47.10i |
| 3 | Matveev Nikita | 47.30i |
| 4 | Vodichev Aleksandr | 47.30i |
