400m Men 1st round, Heat:1 of 3 ; Official result since 17:32
| Rank | Lane | ID | Name | SB | Team | Cat | Result | Info | Video |
| 1 | 4 | 309 | OPIO Denis | UGA | Jun | 47.61 | Q | ||
| 2 | 3 | 220 | KEITA Tijan | GAM | Jun | 48.41 | Q | ||
| 3 | 5 | 267 | CLARICE Sebastien | MRI | Jun | 49.53 | |||
| 4 | 6 | 314 | MWEWA Emmanuel | ZAM | Jun | 49.70 | |||
| 1 | 166 | VIKE Bolpelo | BOT | Jun | DIS | ||||
| 2 | 305 | AZEMIA Ned | SEY | Jun | DNS | ||||
| 7 | 278 | ODELE Tega | NGR | Jun | DNS | ||||
| 8 | 345 | BEKIT Omar Hassen | ERI | Jun | DNS |
