400 meter U18 Women - Heats, Heat:1 of 3 ; Official result since 10:20
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 1637 | SCHEEPERS COLENE | RSA | U18 | 55.98 | Q | ||
| 2 | 8 | 1043 | DJEHI LOU YONAN CHANTAL | CIV | U18 | 1:00.27 | Q | ||
| 3 | 5 | 1377 | MKOMA FRIDAH | ZAM | U18 | 1:00.45 | |||
| 4 | 7 | 1126 | MATIWE WEDU | BOT | U18 | 1:02.33 | |||
| 5 | 3 | 1045 | VEHI FOUETY MARIE ANGE EMMANUELLA | CIV | U18 | 1:04.14 | |||
| 1 | 1608 | DIAGOR GRACA N. | LBR | U18 | DNS | ||||
| 2 | 1378 | BANDA GRACE | ZAM | U18 | DNS | ||||
| 6 | 1204 | MOGOS SINIT | ERI | U18 | DNS |