| Semi 1 | Team | time | | 1. Erick Keter | KEN | 49.48s | | 2. Kenneth Harnden | ZIM | 49.63s | | 3. Jean Dieme | SEN | 49.96s | | 4. Kenneth Enyiazu | NGR | 50.53s | | 5. Hennie Botha | RSA | 50.85s | | 6. Elhefny Ibamin | EGY | 51.13s | | -. Morou Rock Yago | | |
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| Semi 2 | Team | time | | 1. Hillary Maritim | KEN | 49.83s | | 2. Faye Ibou | SEN | 49.99s | | 3. Yvon Rakoptoarimiandry | MAD | 50.52s | | 4. Sylvester Omodiale | NGR | 50.71s | | 5. Edmond Nartey | GHA | 52.45s | | 6. Makanga Medard | CGO | 52.60s | | 7. William Loque | GBS | 53.76s | | -. Samuel Matete | ZAM | DNS |
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