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Summary
Semi-final 1
| Rank | Name | Nation | Time |
| 1 | Paul Drayton; Gerry Ashworth; Richard Stebbins; Bob Hayes | USA | 39.5 |
| 2 | Paul Genevay; Bernard Laidebeur; Claude Piquemal; Jocelyn Delecour | FRA | 39.6 |
| 3 | Pablo McNeil; Patrick Robinson; Lynsworth Headley; Dennis Johnson | JAM | 39.6 |
| 4 | Peter Radford; Ronald Jones; Menzies Campbell; Lynn Davies | GBR | 40.1 |
| 5 | Robert Lay; Eric Bigby; William Earle; Gary Holdsworth | AUS | 40.1 |
| 6 | Sydney Asiodu; Folu Erinle; Jimmy Omagbeni; Lawrence Okorafor | NGR | 40.1 |
| 7 | Huba Rozsnyai; Csaba Csutoras; Laszlo Mihlayfi; Gyula Rabai | HUN | 40.3 |
| 8 | Michael Okantey; Michael Kofi Ahey; Ebenezer Addy; Stanley Allotey | GHA | 40.7 |
| Rank | Name | Nation | Time |
| 1 | Livio Berruti; Ennio Preatoni; Sergio Ottolina; Pasquale Giannattasio | ITA | 39.6 |
| 2 | Andrzej Zielinski; Wieslaw Maniak; Marian Foik; Marian Dudziak | POL | 39.6 |
| 3 | Arquimedes Herrera; Lloyd Murad; Rafael Romero; Hortensio Fucil | VEN | 39.6 |
| 4 | Edvin Ozolins; Boris Zubov; Gusman Kosanov; Boris Savchuk | URS | 39.7 |
| 5 | Heinz Erbstosser; Rainer Berger; Peter Wallach; Volker Loffler | GER | 40.1 |
| 6 | Malang Mane; Bassirou Doumya; Malick Diop; Alioune Sow | SEN | 40.2 |
| 7 | Anthony Coutinho; Makhan Singh; Kenneth Powell; Rajasekaran Pichaya | IND | 40.5 |
| 8 | Hideo Iijima; Masaru Kamata; Kiyoshi Asai; Yojiro Muro | JPN | 40.6 |