| Venue: Olympic Stadium - Moulay Abdellah Sports Complex. Final: Wednesday 28th August 2019 1-:-- |
| Final | time | L | | 1. Galefele Moroko |  Botswana | 51.53s | 3 | | 2. Favour Ofili |  Nigeria | 51.94s | 4 | | 3. Grace Obour |  Ghana | 52.14s | 5 | | 4. Mary Moraa |  Kenya | 51.75s | 6 | | 5. Patience Okon George | Nigeria | 51.96s | 8 | | 6. Leni Shida |  Uganda | 51.99s | 1 | | 7. Beatrice Masilingi |  Namibiaa | 52.39s | 7 | | 8. Assia Raziki |  Morocco | 53.07s | 2 |
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Heats - Tuesday 27.08 | | First 4 from each of Heat advanced to Final. |
| Ranking | time | | S | | 1. Galefele Moroko | Botswana | 51.53s | Q | 1 1. | | 2. Mary Moraa | Kenya | 51.75s | Q | 1 2. | | 3. Favour Ofili | Nigeria | 51.94s | Q | 2 1. | | 4. Patience Okon George | Nigeria | 51.96s | Q | 1 3. | | 5. Leni Shida | Uganda | 51.99s | Q | 1 4. | | 6. Grace Obour | Ghana | 52.14s | Q | 2 2. | | 7. Beatrice Masilingi | Namibiaa | 52.39s | Q | 2 3. | | 8. Assia Raziki | Morocco | 53.07s | Q | 2 4. | | 9. Tjipekapora Herunga | Namibiaa | 53.49s | | 1 5. | | 10.Nasiba Nabirye | Uganda | 53.71s | | 1 6. | | 11.Eman Elbashl |  Egypt | 53.84s | | 2 5. | | 12.Stella Wonruku | Uganda | 54.11s | | 2 6. | | 13.Linda Kageha | Kenya | 54.12s | | 1 7. | | 14.Marcelle Bouele Bondo |  Congo | 54.65s | | 1 8 | | 15.Amarachukwu Jecinta Obi | Nigeria | 54.93s | | 2 7. | | -. Maggie Barrie |  Sierra Leone | DNS | | 2 - |
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