400 meter Women Semi Final, Heat:1 of 2 ; Official result since 15:44
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 840 | GEORGE Patience Okon | 52.19 | NGR | Senior | 53.24 | Q | |
| 2 | 6 | 744 | MUTUA Veronica | 52.97 | KEN | Senior | 53.80 | Q | |
| 3 | 3 | 977 | MINGILISHI Niddy | 52.86 | ZAM | Senior | 53.97 | Q | |
| 4 | 5 | 965 | LENI Shida | 52.17 | UGA | Senior | 54.05 | q | |
| 5 | 7 | 910 | MOLEPO Precious | 52.84 | RSA | Senior | 54.29 | q | |
| 6 | 1 | 611 | BOTLOGETSWE Christine | 53.66 | BOT | Senior | 55.06 | ||
| 7 | 2 | 683 | GEMECHU Tsige Duguma | 53.83 | ETH | Senior | 56.23 | ||
| 8 | 8 | 701 | ZEMEDKUN Msgana Haylu | 54.68 | ETH | Senior | 57.62 |