| Final 22:20 | Team | time | L | N | | 1. Kerron Clement |  USA | 47.61s | 4 | 1093 | | 2. Felix Sanchez |  DOM | 48.01s | 5 | 490 | | 3. Marek Plawgo |  POL | 48.12s | 7 | 898 | | 4. James Carter | USA | 48.40s | 6 | 1091 | | 5. Danny Mcfarlane |  JAM | 48.59s | 9 | 720 | | 6. Periklis Iakovvkis |  GRE | 49.25s | 2 | 654 | | 7. Derrick Williams | USA | 52.97s | 8 | 1155 | | -. Adam Kunkel |  CAN | DNF | 3 | 426 |
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| Heat 1 21:45 | Team | time | L | N | | 1. Marek Plawgo | POL | 48.18s | 9 | 898 | | 2. James Carter | USA | 48.30s | 4 | 1091 | | 3. Danny Mcfarlane | JAM | 48.32s | 5 | 720 | | 4. Derrick Williams | USA | 48.43s | 6 | 1155 | | 5. Kenji Narisako |  JPN | 48.44s | 7 | 752 | | 6. Fadil Bellaabouss |  FRA | 49.17s | 8 | 558 | | 7. Joseph G. Abraham |  IND | 49.51s | 2 | 675 | | 8. Yevgeniy Meleshenko |  KAZ | 49.56s | 3 | 763 |
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| Heat 2 21:53 | Team | time | L | N | | 1. Felix Sanchez | DOM | 48.35s | 6 | 490 | | 2. Periklis Iakovvkis | GRE | 48.44s | 7 | 654 | | 3. Bershawn Jackson | USA | 48.95s | 4 | 1106 | | 4. Aleksandr Derevyagin |  RUS | 49.11s | 3 | 952 | | 5. Edivaldo Monteiro |  POR | 49.31s | 9 | 911 | | 6. Pieter de Villiers |  RSA | 49.37s | 2 | 934 | | 7. Javier Culson |  PUR | 49.64s | 5 | 914 | | 8. Yan Meng |  CHN | 49.70s | 8 | 442 |
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| Heat 3 22:01 | Team | time | L | N | | 1. Kerron Clement | USA | 48.60s | 4 | 1093 | | 2. Adam Kunkel | CAN | 48.66s | 7 | 426 | | 3. Bayano Kamani | PAN | 49.13s | 5 | 881 | | 4. Naman Keita | FRA | 49.16s | 6 | 570 | | 5. Isa Phillips | JAM | 49.47s | 3 | 722 | | 6. Jonathan Williams |  BIZ | 49.77s | 9 | 368 | | 7. Gianni Carabelli |  ITA | 50.35s | 8 | 692 | | 8. Ibrahim Maiga | MLI | 51.24s | 2 | 835 |
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| Heat 1 20:45 | Team | time | L | N | | 1. Naman Keita | FRA | 49.45s | 8 | 570 | | 2. Derrick Williams | USA | 49.65s | 6 | 1155 | | 3. Marek Plawgo | POL | 49.66s | 2 | 898 | | 4. Yan Meng | CHN | 49.66s | 9 | 442 | | 5. L.J. van Zyl | RSA | 49.71s | 5 | 948 | | 6. Raphael Fernandes |  BRA | 50.33s | 4 | 398 | | 7. Allan Ayala | GUA | 52.26s | 7 | 660 | | 8. Jonnie Lowe | HON | 52.66s | 3 | 666 |
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| Heat 2 20:52 | Team | time | L | N | | 1. James Carter | USA | 49.52s | 4 | 1091 | | 2. Bayano Kamani | PAN | 49.67s | 5 | 881 | | 3. Gianni Carabelli | ITA | 49.81s | 3 | 692 | | 4. Yevgeniy Meleshenko | KAZ | 49.94s | 7 | 763 | | 5. Kurt Couto |  MOZ | 50.06s | 2 | 840 | | 6. Masahira Yoshikata | JPN | 50.59s | 6 | 761 | | -. Alwyn Myburgh | RSA | DNF | 8 | 939 |
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| Heat 3 20:59 | Team | time | L | N | | 1. Danny Mcfarlane | JAM | 48.91s | 4 | 720 | | 2. Kerron Clement | USA | 49.07s | 5 | 1093 | | 3. Javier Culson | PUR | 49.09s | 2 | 914 | | 4. Edivaldo Monteiro | POR | 49.66s | 8 | 911 | | 5. Aleksandr Derevyagin | RUS | 49.66s | 6 | 952 | | 6. Dai Tamesue | JPN | 49.67s | 7 | 756 | | 7. Dale Garland |  GBR | 49.98s | 3 | 589 |
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| Heat 4 21:06 | Team | time | L | N | | 1. Adam Kunkel | CAN | 49.03s | 5 | 426 | | 2. Periklis Iakovvkis | GRE | 49.10s | 8 | 654 | | 3. Pieter de Villiers | RSA | 49.24s | 2 | 934 | | 4. Fadil Bellaabouss | FRA | 49.51s | 4 | 558 | | 5. Jonathan Williams | BIZ | 49.61s | 9 | 368 | | 6. Mowen Boino | PNG | 52.45s | 7 | 888 | | -. Markino Buckley | JAM | DNF | 3 | 710 | | -. Ali Obaid Shirook | UAE | DNS | 6 | 1061 |
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| Heat 5 21:13 | Team | time | L | N | | 1. Felix Sanchez | DOM | 48.70s | 3 | 490 | | 2. Bershawn Jackson | USA | 48.87s | 7 | 1106 | | 3. Kenji Narisako | JPN | 48.92s | 2 | 752 | | 4. Isa Phillips | JAM | 49.38s | 4 | 722 | | 5. Ibrahim Maiga | MLI | 49.55s | 9 | 835 | | 6. Joseph G. Abraham | IND | 49.64s | 8 | 675 | | 7. Jose Marra Romera |  ESP | 50.82s | 5 | 520 | | 8. Haq Nawaz | PAK | 51.72s | 6 | 880 |
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| Men 400m Hurdles Startlist | | 41 Athletes /28 Countries | Team | Birth | Best | 2007 | Qual. | | 368 Jonathon Williams | BIZ | 29 Aug 83 | 48.88 | 48.88 | 48.88 | | 398 Raphael Fernandes | BRA | 8 Nov 84 | 49.29 | 49.29 | 49.29 | | 426 Adam Kunkel | CAN | 24 Feb 81 | 48.24 | 48.24 | 48.24 | | 442 Yan Meng | CHN | 30 Sep 80 | 49.03 | 49.47 | 49.03 | | 490 Felix SÁnchez | DOM | 30 Aug 77 | 47.25 | 48.86 | 48.86 | | 520 José María Romera | ESP | 2 Sep 80 | 49.34 | 50.63 | 49.80 | | 558 Fadil Bellaabouss | FRA | 15 Jun 86 | 49.29 | 49.29 | 49.29 | | 570 Naman KeĎta | FRA | 9 Apr 78 | 48.17 | 48.90 | 48.90 | | 589 Dale Garland | GBR | 13 Oct 80 | 49.79 | 49.79 | 49.79 | | 597 David Greene | GBR | 11 Apr 86 | 49.58 | 49.58 | 49.58 | | 654 Periklís IakovÁkis | GRE | 24 Mar 79 | 47.82 | 48.35 | 47.82 | | 660 Allan Ayala | GUA | 7 Jul 86 | 51.20 | 51.20 | 51.20 | | 666 Jonnie Lowe | HON | 1 Oct 79 | 51.77 | 52.29 | 51.77 | | 675 Joseph G. Abraham | IND | 11 Sep 81 | 49.52 | 49.52 | 49.52 | | 692 Gianni Carabelli | ITA | 30 May 79 | 48.84 | 49.11 | 49.11 | | 710 Markino Buckley | JAM | 16 Apr 86 | 49.24 | 49.24 | 49.24 | | 715 Dean Griffiths | JAM | 27 Jan 80 | 48.55 | 49.30 | 48.81 | | 720 Danny Mcfarlane | JAM | 14 Feb 72 | 48.00 | 48.52 | 48.47 | | 722 Isa Phillips | JAM | 22 Apr 84 | 48.51 | 48.51 | 48.51 | | 752 Kenji Narisako | JPN | 25 Jul 84 | 47.93 | 49.01 | 47.93 | | 756 Dai Tamesue | JPN | 3 May 78 | 47.89 | 48.73 | 48.73 | | 761 Masahira Yoshikata | JPN | 23 Aug 82 | 48.66 | 49.53 | 48.93 | | 763 Yevgeniy Meleshenko | KAZ | 19 Jan 81 | 48.46 | 49.71 | 49.47 | | 835 Ibrahim MaĎga | MLI | 14 Mar 79 | 49.13 | 49.13 | 49.13 | | 840 Kurt Couto | MOZ | 14 May 85 | 49.12 | 49.12 | 49.12 | | 880 Haq Nawaz | PAK | 10 Sep 81 | | | 881 Bayano Kamani | PAN | 17 Apr 80 | 47.84 | 48.70 | 48.70 | | 888 Mowen Boino | PNG | 16 Dec 79 | 50.37 | 51.03 | 50.37 | | 898 Marek Plawgo | POL | 25 Feb 81 | 48.16 | 48.88 | 48.57 | | 911 Edivaldo Monteiro | POR | 28 Apr 76 | 49.10 | 49.57 | 49.57 | | 914 Javier Culson | PUR | 25 Jul 84 | 49.07 | 49.07 | 49.07 | | 934 Pieter De Villiers | RSA | 13 Jul 82 | 48.46 | 48.89 | 48.74 | | 939 Alwyn Myburgh | RSA | 13 Oct 80 | 48.09 | 48.64 | 48.23 | | 948 L.J. Van Zyl | RSA | 20 Jul 85 | 48.05 | 48.24 | 48.05 | | 952 Aleksandr Derevyagin | RUS | 24 Mar 79 | 49.12 | 49.12 | 49.12 | | 1061 Ali Obaid Shirook | UAE | 13 Oct 79 | 52.31 | 52.31 | 52.31 | | 1091 James Carter | USA | 7 May 78 | 47.43 | 47.72 | 47.72 | | 1093 Kerron Clement | USA | 31 Oct 85 | 47.24 | 47.80 | 47.39 | | 1099 Kenneth Ferguson | USA | 22 Mar 84 | 48.15 | 48.15 | 48.15 | | 1106 Bershawn Jackson | USA | 8 May 83 | 47.30 | 48.13 | 47.48 | | 1155 Derrick Williams | USA | 25 Mar 82 | 48.26 | 48.26 | 48.26 |
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