2010 African Championships in Athletics – Men's 400 metres
The men's 400 metres at the 2010 African Championships in Athletics were held on July 28–30.Medalists
Results
Heats
Qualification: First 4 of each heat and the next 4 fastest qualified for the semifinals.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 5 | James Godday | | 46.01 | Q |
| 2 | 5 | Isaac Makwala | | 46.07 | Q |
| 3 | 2 | Mark Kiprotich Mutai | | 46.11 | Q |
| 4 | 3 | Rabah Yousif | | 46.36 | Q |
| 5 | 1 | Geoffrey Ngeno | | 46.39 | Q |
| 6 | 4 | Gary Kikaya | | 46.54 | Q |
| 7 | 5 | Ofentse Mogawane | | 46.65 | Q |
| 8 | 3 | Obakeng Ngwigwa | | 46.66 | Q |
| 9 | 4 | Anderson Mureta Mutegi | | 46.72 | Q |
| 10 | 1 | Marvin Lewis | | 46.78 | Q |
| 11 | 3 | Mohamed Khawaja | | 46.78 | Q |
| 12 | 3 | Saul Weigopwa | | 46.94 | Q |
| 13 | 1 | Eric Milazar | | 46.97 | Q |
| 14 | 4 | Noah Akwu | | 47.03 | Q |
| 15 | 4 | Mamadou Gueye | | 47.16 | Q |
| 16 | 2 | Bereket Desta | | 47.16 | Q |
| 17 | 1 | Saviour Kombe | | 47.45 | Q |
| 18 | 3 | Emmanuel Tugumisirize | | 47.88 | q |
| 19 | 5 | Lukungu Waisswa | | 48.13 | Q |
| 20 | 3 | David Tinago | | 48.42 | q |
| 21 | 2 | Gift Soko | | 48.55 | Q |
| 22 | 5 | Zemenu Kassaw | | 48.65 | q |
| 23 | 3 | Yaovi Michael Gougou | | 49.06 | q |
| 24 | 2 | Ramadhan Akula | | 49.07 | Q |
| 25 | 4 | Nicolau Ernesto Palanca | | 49.54 | |
| 26 | 2 | Thimote Bagina | | 49.97 | |
| 27 | 2 | Jeremias Silva | | 50.16 | SB |
| 4 | Hago Tadesse | | | |
| 1 | Sakaria Kamberuka | | | |
| 5 | Fousseni Mathie Gnanligo | | | |
| 1 | Golden Gunde | | | |
| 1 | Sandro Rocha | | | |
| 1 | Michael Taapatsa | | | |
| 2 | Jean Francois Degrace | | | |
| 2 | Awad Makki | | | |
| 4 | Nelton Ndebele | | | |
| 5 | Fernando Augustin | | | |
Semifinals
Qualification: First 2 of each semifinal and the next 2 fastest qualified for the final.
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 3 | Mohamed Khawaja | | 45.42 | Q, SB |
| 2 | 2 | Gary Kikaya | | 45.55 | Q |
| 3 | 2 | Mark Kiprotich Mutai | | 45.69 | Q, SB |
| 4 | 1 | Rabah Yousif | | 45.82 | Q |
| 5 | 3 | Anderson Mureta Mutegi | | 45.83 | Q |
| 6 | 1 | Bereket Desta | | 45.97 | Q |
| 7 | 2 | Obakeng Ngwigwa | | 46.12 | q |
| 8 | 1 | Saul Weigopwa | | 46.21 | q |
| 9 | 1 | Marvin Lewis | | 46.26 | PB |
| 10 | 2 | Ofentse Mogawane | | 46.41 | |
| 11 | 1 | Geoffrey Ngeno | | 46.45 | |
| 12 | 3 | James Godday | | 46.55 | |
| 13 | 3 | Eric Milazar | | 46.79 | |
| 14 | 3 | Isaac Makwala | | 46.92 | |
| 15 | 2 | Mamadou Gueye | | 46.98 | |
| 16 | 3 | Saviour Kombe | | 47.32 | |
| 17 | 1 | Emmanuel Tugumisirize | | 47.44 | |
| 18 | 1 | David Tinago | | 47.95 | |
| 19 | 1 | Gift Soko | | 48.20 | |
| 20 | 3 | Lukungu Waisswa | | 48.39 | |
| 21 | 2 | Ramadhan Akula | | 48.48 | |
| 22 | 2 | Zemenu Kassaw | | 49.04 | |
| 23 | 3 | Yaovi Michael Gougou | | 49.27 | |
| 2 | Noah Akwu | | | |
Final
