400m Women Semi Finals, Heat:1 of 3 ; Official result since 13:31
| Rank | Lane | ID | Name | PB | Team | Cat | Result | Info | Video |
| 1 | 4 | 12 | Imaobong Nse | FB | 52.01 | Q | |||
| 2 | 5 | 159 | Usunobun Queen | Delta | 52.40 | Q | |||
| 3 | 6 | 251 | Oloye Josephine | Edo | 53.76 | q | |||
| 4 | 3 | 462 | Princess Chioma | UDO-OBONG | 54.34 | ||||
| 5 | 7 | 144 | Nwachukwu Chioma | Delta | 54.61 | ||||
| 6 | 2 | 116 | Blossom Omogor | DE J | 55.83 | ||||
| 1 | 11 | Haisha BISIOLU | FB | DNS | |||||
| 8 | 200 | AKINTOYE BLESSING | D'Victors | DNS |