| 01.02.15 | | 18:22 | | START LIST |
| Men | | 400 m |
| | Final | | | | |
WR=44.57 | | CLEMENT Kerron | | USA | | | 12.03.05 | | Fayetteville | |
ER=45.05 | | SCHONLEBE Thomas | | GDR | | | 05.02.88 | | Sindelfingen | |
RUS=45.90 | | MASHCHENKO Ruslan | | RUS | | | 01.03.98 | | Valencia | |
CR=45.81 | | ISMAIL Ibrahim | | QAT | | | 1996 | | Moscow | |
| | | Birth | | | | |
Lane | Bib | N A M E | Day | Nation | SB | PB |
| 18:22 | | Heat: 1 | |
1 | 22 | GRISHAKOV Alexander | 24/04/92 | RUS | | 48.73 | 48.73 |
2 | 18 | TRAMBOVETSKIY Yuriy | 27/06/87 | RUS | | | 47.36 |
3 | 19 | VESNIN Nikita | 15/04/94 | RUS | | | 47.84 |
4 | 24 | PETUKHOV Sergey | 22/12/83 | RUS | | 48.18 | 46.89 |
5 | 23 | PETRYSHOV Konstantin | 16/12/83 | RUS | | 47.93 | 47.55 |
6 | 20 | SAVIN Pavel | 23/01/94 | RUS | | | 47.99 |
| 18:27 | | Heat: 2 | |
1 | 16 | YOUSIF Rabah | 11/12/86 | GBR | | | 46.24 |
2 | 17 | DOS SANTOS Ricardo | 18/12/94 | POR | | | 45.37 |
3 | 13 | SMITH Calvin | 10/12/87 | USA | | | 45.61 |
4 | 21 | TRENIKHIN Pavel | 24/03/86 | RUS | | | 46.00 |
5 | 15 | MASLAK Pavel | 21/02/91 | CZE | | | 45.24 |
6 | 14 | GAUNTLETT Akheem | 26/08/90 | JAM | | | 46.14 |