400 meter U20 Men - Final ; Official result since 17:52
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 3 | 1160 | KEBINATSHIPI BUSANG COLLEN | BOT | U20 | 44.91 | |||
| 2 | 5 | 1451 | MBEWE THOMSON | ZAM | U20 | 46.08 | |||
| 3 | 6 | 1162 | SESHOKA KAGO | BOT | U20 | 46.23 | |||
| 4 | 7 | 1351 | CAMARA LAMIN | GAM | U20 | 46.42 | |||
| 5 | 8 | 1161 | KEORAPETSE OREOKAME | BOT | U20 | 46.46 | |||
| 6 | 4 | 1543 | CHEMELIL ELKANAH KIPROTICH | KEN | U20 | 46.63 | |||
| 7 | 2 | 1716 | MARTIN WIAAN | RSA | U20 | 47.60 | |||
| 8 | 1 | 1115 | CALEB JOSHUA | NGR | U20 | 47.93 |