400m MEN, Heat:1 of 3 ; Official result since 08:43
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 5 | 147 | FULUMAKA HENRY | ZAM | Jun | 48.26 | Q | ||
| 2 | 3 | 130 | VAN RENSBURG WERNICH | RSA | Jun | 48.49 | Q | ||
| 3 | 2 | 91 | MUSSACATE EDIO SEBASTIAO ALFREDO | MOZ | Jun | 49.36 | |||
| 4 | 1 | 102 | ERASMUS RYK LUDOLPH | NAM | Jun | 50.70 | |||
| 4 | 199 | SIWELA CARLTON | ZIM | Jun | DIS |