Heats
Qualification: First 3 teams of each heat (Q) plus the next 2 fastest (q) qualified for the final.
More information Rank, Heat ...
| Rank | Heat | Nation | Athletes | Time | Notes |
| 1 | 2 |  South Africa | ?, Simon Magakwe, Ncincihli Titi, Emile Erasmus | 39.07 | Q |
| 2 | 2 |  Nigeria | Enoch Olaoluwa Adegoke, ?, ?, ? | 39.18 | Q |
| 3 | 2 |  Ivory Coast | Ben Youssef Méité, Wilfried Koffi Hua, Néhémiah N'Goran Gnamien, Arthur Cissé | 39.55 | Q |
| 4 | 1 |  Gambia | Alieu Joof, Assan Faye, Ebrahima Camara, Adama Jammeh | 40.04 | Q |
| 5 | 1 |  Kenya | ?, ?, ?, Mark Odhiambo | 40.24 | Q |
| 6 | 2 |  Zimbabwe | Dickson Kapandura, Rodwel Ndlovu, Leon Tafirenyika, Tetenda Tsumba | 40.37 | q |
| 7 | 1 |  Cameroon | ?, ?, ?, Emmanuel Eseme | 40.44 | Q |
| 8 | 1 |  Burkina Faso | Sidiki Ouedraogo, Idrissa Compaore, Hugues Zango, Innocent Bologo | 40.74 | q |
| 9 | 1 |  Seychelles | ?, ?, ?, ? | 41.74 | |
| 10 | 2 |  Ethiopia | Nathan Abebe, ?, ?, ? | 43.29 | |
| 1 |  Senegal | ?, ?, ?, ? | DNF | |
| 2 |  Ghana | | DNS | |
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Final
More information Rank, Lane ...
| Rank | Lane | Nation | Competitors | Time | Notes |
 | 4 | South Africa | Henricho Bruintjies, Simon Magakwe, Emile Erasmus, Akani Simbine | 38.25 | CR |
 | 5 | Nigeria | Ogho-Oghene Egwero, Ejowvokoghene Oduduru, Emmanuel Arowolo, Seye Ogunlewe | 38.74 | |
 | 7 | Ivory Coast | Néhémiah N'Goran Gnamien, Wilfried Koffi Hua, Arthur Cissé, Ben Youssef Méité | 38.92 | |
| 4 | 1 | Zimbabwe | Leon Tafirenyika, ?, Dickson Kapandura, Ngoni Makusha | 39.37 | |
| 5 | 3 | Kenya | Peter Mwai, ?, Mike Mokamba Nyang'au, Mark Odhiambo | 39.77 | |
| 6 | 6 | Gambia | ?, ?, Assan Faye, Adama Jammeh | 39.88 | |
| 7 | 8 | Cameroon | Tarcicuis Jean, Maxime Petnga, Emmanuel Eseme, Nsangou Tetndap | 39.93 | |
| 8 | 2 | Burkina Faso | Sidiki Ouedraogo, ?, ?, Innocent Bologo | 40.96 | |
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