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Summary
Heat 1
| Rank | Name | Nation | Time |
| 1 | Keston Bledman; Marc Burns; Aaron Armstrong; Richard Thompson | TTO | 38.26 |
| 2 | Naoki Tsukahara; Shingo Suetsugu; Shinji Takahira; Nobuharu Asahara | JPN | 38.52 |
| 3 | Maarten Heisen; Guus Hoogmoed; Patrick van Luijk; Caimin Douglas | NED | 38.87 |
| 4 | Jose Carlos Moreira; Bruno de Barros; Vicente de Lima; Sandro Viana | BRA | 39.01 |
| Did not finish | |||
| Onyeabor Ngwogu; Obinna Metu; Chinedu Oriala; Uchenna Emedolu | NGR | ||
| Marcin Nowak; Lukasz Chyla; Marcin Jedrusinski; Dariusz Kuc | POL | ||
| Rodney Martin; Travis Padgett; Darvis Patton; Tyson Gay | USA | ||
| Hannes Dreyer; Leigh Julius; Ishmael Kumbane; Thuso Mpuang | RSA | ||
| Rank | Name | Nation | Time |
| 1 | Dwight Thomas; Michael Frater; Nesta Carter; Asafa Powell | JAM | 38.31 |
| 2 | Hank Palmer; Anson Henry; Jared Connaughton; Pierre Browne | CAN | 38.77 |
| 3 | Tobias Unger; Till Helmke; Alexander Kosenkow; Martin Keller | GER | 38.93 |
| 4 | Wen Yongyi; Zhang Peimeng; Lu Bin; Hu Kai | CHN | 39.13 |
| 5 | Apinan Sukaphai; Siriroj Darasuriyong; Sompote Suwannarangsri; Sittichai Suwonprateep | THA | 39.40 |
| 6 | Yannick Lesourd; Martial Mbandjock; Manuel Reynaert; Samuel Coco-Viloin | FRA | 39.53 |
| Disqualified | |||
| Fabio Cerutti; Simone Collio; Emanuele Di Gregorio; Jacques Riparelli | ITA | ||
| Simeon Williamson; Tyrone Edgar; Marlon Devonish; Craig Pickering | GBR | ||