# 2018 African Championships in Athletics – Women's 400 metres

The women's 400 metres event at the 2018 African Championships in Athletics was held on 2 and 3 August in Asaba, Nigeria.

## Medalists

| Gold | Silver | Bronze |
| Caster Semenya South Africa | Christine Botlogetswe Botswana | Yinka Ajayi Nigeria |

## Results
### Heats

Qualification: First 3 of each heat (Q) and the next 4 fastest (q) qualified for the semifinals.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 4 | Yinka Ajayi | Nigeria | 52.38 | Q |
| 2 | 1 | Caster Semenya | South Africa | 52.98 | Q |
| 3 | 1 | Christine Botlogetswe | Botswana | 53.19 | Q |
| 4 | 2 | Patience Okon George | Nigeria | 53.39 | Q |
| 5 | 4 | Veronica Mutua | Kenya | 53.55 | Q |
| 6 | 1 | Leni Shida | Uganda | 53.60 | Q |
| 7 | 2 | Margaret Barrie | Sierra Leone | 53.61 | Q |
| 8 | 1 | Maximila Imali | Kenya | 53.62 | q |
| 9 | 4 | Frehiywot Wondie | Ethiopia | 53.88 | Q |
| 10 | 3 | Quincy Malekani | Zambia | 54.06 | Q |
| 11 | 3 | Soulatiou Saka | Benin | 54.25 | Q |
| 12 | 3 | Justine Palframan | South Africa | 54.30 | Q |
| 13 | 4 | Fatou Gaye | Senegal | 54.40 | q |
| 14 | 2 | Kadija Ouardi | Morocco | 54.48 | Q |
| 15 | 4 | Marcelle Bouele Bondo | Republic of the Congo | 54.56 | q |
| 16 | 3 | Nafy Mane | Senegal | 54.62 | q |
| 17 | 2 | Nevian Mongina | Kenya | 54.65 | |
| 18 | 4 | Galefele Moroko | Botswana | 54.90 | |
| 19 | 4 | Ngouyaka Angounou | Cameroon | 55.00 | |
| 20 | 1 | Worknesh Mesele | Ethiopia | 55.12 | |
| 21 | 2 | Tjipekapora Herunga | Namibia | 55.90 | |
| 22 | 4 | Abygirl Sepiso | Zambia | 56.10 | |
| 23 | 2 | Goitseone Seleka | Botswana | 56.17 | |
| 24 | 1 | Mariama Mamoudou Ittatou | Niger | 56.52 | |
| 25 | 3 | Faith Dube | Zimbabwe | 56.54 | |
| 26 | 3 | Firezewid Tesfaye | Ethiopia | 57.06 | |
| 27 | 2 | Adele Mafogan | Cameroon | 57.57 | |
| | 1 | Emerald Egwim | Nigeria | DNS | |

### Semifinals

Qualification: First 3 of each semifinal (Q) and the next 2 fastest (q) qualified for the final.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 1 | Yinka Ajayi | Nigeria | 51.43 | Q |
| 2 | 2 | Caster Semenya | South Africa | 51.87 | Q |
| 3 | 1 | Christine Botlogetswe | Botswana | 52.24 | Q |
| 4 | 1 | Leni Shida | Uganda | 52.42 | Q |
| 5 | 2 | Patience Okon George | Nigeria | 52.81 | Q |
| 6 | 1 | Quincy Malekani | Zambia | 52.96 | q |
| 7 | 2 | Margaret Barrie | Sierra Leone | 53.14 | Q |
| 8 | 2 | Veronica Mutua | Kenya | 53.87 | q |
| 9 | 1 | Soulatiou Saka | Benin | 54.06 | |
| 10 | 1 | Fatou Gaye | Senegal | 54.22 | |
| 11 | 2 | Frehiywot Wondie | Ethiopia | 54.39 | |
| 12 | 2 | Marcelle Bouele Bondo | Republic of the Congo | 54.77 | |
| 13 | 2 | Kadija Ouardi | Morocco | 54.91 | |
| 14 | 2 | Nafy Mane | Senegal | 55.46 | |
| 15 | 1 | Justine Palframan | South Africa | 57.11 | |
| | 1 | Maximila Imali | Kenya | DNF | |

### Final

| Rank | Lane | Athlete | Nationality | Time |
| | 4 | Caster Semenya | South Africa | 49.96 |
| | 3 | Christine Botlogetswe | Botswana | 51.19 |
| | 6 | Yinka Ajayi | Nigeria | 51.34 |
| 4 | 7 | Margaret Barrie | Sierra Leone | 52.06 |
| 5 | 5 | Patience Okon George | Nigeria | 52.34 |
| 6 | 8 | Leni Shida | Uganda | 52.78 |
| 7 | 1 | Veronica Mutua | Kenya | 53.27 |
| 8 | 2 | Quincy Malekani | Zambia | 54.10 |