| Final 22:20 wind -0.8m/s | time | L | React. | bib | | 1. Tyson Gay |  USA | 9.85s | 5 | 0.143 | 1100 | | 2. Derrick Atkins |  BAH | 9.91s | 6 | 0.137 | 347 | | 3. Asafa Powell |  JAM | 9.96s | 4 | 0.145 | 717 | | 4. Olusoji A. Fasuba |  NGR | 10.07s | 9 | 0.130 | 857 | | 5. Churandy Martina |  AHO | 10.08s | 8 | 0.180 | 302 | | 6. Marlon Devonish |  GBR | 10.14s | 7 | 0.149 | 586 | | 7. Matic Osovnikar |  SLO | 10.23s | 2 | 0.172 | 994 | | 8. Marc Burns |  TRI | 10.29s | 3 | 0.166 | 1048 |
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There were two principals, Gay who had run 9.84 in the US Championships, while world record holder Powell, recovering from an injury, had a 9.90 to his credit from July. After Devonish had been fastest in the heats, the quarter-finals saw the contenders easing back, as Powell ran 10.01, coming off the throttle at 60m. In the semi-finals Powell again shut down, and was headed by Atkins, while Gay won the other race in 10.00. A feature of the preliminaries was the failure of Gay’s comaptriots. Jelks was injured and Samuels eliminated in the quarter-finals.
For the first time in world championship 100m history, athletes from eight different countries qualified for the final. In the big race Powell was off quicker than his rivals, and he was a half metre ahead by 30m (3.83 for Powell, 3.86 for Gay), with Atkins a fraction behind the American. Powell still held the lead by two hundredths at 60m (6.42), but the Jamaican was beginning to tense up. Gay caught him at 70m, before surging away to win from Atkins, who himself caught Powell just after 90m. The Jamaican admitted that he “just panicked and tightened up“, while Gay noted that “at about 70m I knew I had a great chance of winning.” The winner ran the two halves of his race in 5.59 and 4.26 compared with 5.62/4.29 by Atkins and 5.57/4.39 Powell.
| Heat 1 20:10 | Team | time | L | N | | 1. Derrick Atkins |  BAH | 10.04s | 6 | 347 | | 2. Asafa Powell |  JAM | 10.08s | 4 | 717 | | 3. Matic Osovnikar |  SLO | 10.17s | 9 | 994 | | 4. Marc Burns |  TRI | 10.21s | 5 | 1048 | | 5. Kim Collins |  SKN | 10.21s | 2 | 989 | | 6. Craig Pickering |  GBR | 10.29s | 7 | 591 | | 7. Brendan Christian | ANT | 10.29s | 8 | 314 | | 8. Nobuharu Asahara |  JPN | 10.36s | 3 | 729 |
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| Heat 2 20:18 | Team | time | L | N | | 1. Tyson Gay |  USA | 10.00s | 4 | 1100 | | 2. Marlon Devonish | GBR | 10.12s | 7 | 586 | | 3. Churandy Martina | AHO | 10.15s | 6 | 302 | | 4. Olusoji A. Fasuba |  NGR | 10.18s | 9 | 857 | | 5. Mark Lewis-Francis | GBR | 10.19s | 5 | 594 | | 6. Anson Henry |  CAN | 10.20s | 2 | 422 | | 7. Nesta Carter | JAM | 10.28s | 3 | 712 | | 8. Clement Campbell | JAM | 10.28s | 8 | 711 |
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| Heat 1 20:15 | Team | time | L | N | | 1. Asafa Powell | JAM | 10.01s | 7 | 717 | | 2. Derrick Atkins | BAH | 10.02s | 8 | 347 | | 3. Matic Osovnikar | SLO | 10.13s | 6 | 994 | | 4. Nobuharu Asahara | JPN | 10.16s | 4 | 729 | | 5. Rosario La Mastra |  ITA | 10.32s | 2 | 698 | | 6. Dariusz Kuc |  POL | 10.37s | 3 | 894 | | 7. Martial Mbandjock |  FRA | 10.39s | 9 | 564 | | 8. Richard Thompson | TRI | 10.44s | 5 | 1051 |
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| Heat 2 20:21 | Team | time | L | N | | 1. Tyson Gay | USA | 10.06s | 4 | 1100 | | 2. Marlon Devonish | GBR | 10.13s | 7 | 586 | | 3. Olusoji A. Fasuba | NGR | 10.24s | 9 | 857 | | 4. Clement Campbell | JAM | 10.28s | 5 | 711 | | 5. Simone Collio | ITA | 10.31s | 8 | 694 | | 6. Keston Bledman | TRI | 10.33s | 6 | 1047 | | 7. Angel David Rodrrguez |  ESP | 10.39s | 3 | 519 | | 8. Jan Žumer | SLO | 10.44s | 2 | 991 |
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| Heat 3 20:27 | Team | time | L | N | | 1. Churandy Martina | AHO | 10.10s | 4 | 302 | | 2. Mark Lewis-Francis | GBR | 10.17s | 7 | 594 | | 3. Anson Henry | CAN | 10.20s | 5 | 422 | | 4. Nesta Carter | JAM | 10.23s | 6 | 712 | | 5. J-Mee Samuels | USA | 10.29s | 9 | 1137 | | 6. Patrick Johnson |  AUS | 10.29s | 8 | 326 | | 7. Sherwin Vries |  RSA | 10.36s | 2 | 947 | | 8. Florin Suciu |  ROU | 10.41s | 3 | 930 |
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| Heat 4 20:33 | Team | time | L | N | | 1. Craig Pickering | GBR | 10.21s | 4 | 591 | | 2. Marc Burns | TRI | 10.21s | 9 | 1048 | | 3. Brendan Christian | ANT | 10.26s | 5 | 314 | | 4. Kim Collins | SKN | 10.30s | 3 | 989 | | 5. Naoki Tsukahara | JPN | 10.31s | 7 | 741 | | 6. Vicente de Lima |  BRA | 10.38s | 2 | 388 | | 7. Henry Vizcaino |  CUB | 10.40s | 6 | 469 | | 8. Joshua Ross | AUS | 10.42s | 8 | 324 |
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| Heat 1 12:10 | Team | time | L | N | | 1. Nobuharu Asahara | JPN | 10.14s | 1 | 729 | | 2. Tyson Gay | USA | 10.19s | 8 | 1100 | | 3. Sherwin Vries | RSA | 10.30s | 6 | 947 | | 4. Kim Collins | SKN | 10.34s | 9 | 989 | | 5. Jose Carlos Moreira | BRA | 10.46s | 2 | 386 | | 6. Muhammad Patoniah | INA | 10.92s | 7 | 674 | | 7. Tyrone Omar | NMA | 11.00s | 4 | 870 | | 8. Iowane Dovumatua | FIJ | 11.09s | 5 | 542 | | 9. Tim Natua | KIR | 11.51s | 3 | 781 |
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| Heat 2 12:17 | Team | time | L | N | | 1. Brendan Christian | ANT | 10.16s | 3 | 314 | | 2. Craig Pickering | GBR | 10.24s | 6 | 591 | | 3. Derrick Atkins | BAH | 10.25s | 5 | 347 | | 4. Olusoji A. Fasuba | NGR | 10.27s | 9 | 857 | | 5. Sandro Viana | BRA | 10.46s | 2 | 387 | | 6. Darren Gilford |  MLT | 10.92s | 4 | 836 | | 7. Keiron Rogers | AIA | 11.05s | 1 | 303 | | 8. Reginaldo Micha Ndong | GEQ | 11.59s | 8 | 611 | | 9. Tika Ram Tharu | NEP | 11.83s | 7 | 854 |
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| Heat 3 12:24 | Team | time | L | N | | 1. Marlon Devonish | GBR | 10.13s | 4 | 586 | | 2. Matic Osovnikar | SLO | 10.21s | 6 | 994 | | 3. Simone Collio | ITA | 10.22s | 2 | 694 | | 4. Gibrilla Pato Bangura | SLE | 10.50s | 5 | 990 | | 5. Beranger Bosse | CAF | 10.59s | 8 | 415 | | 6. Jj Capelle | NRU | 11.02s | 9 | 874 | | 7. Hin Fong Pao | MAC | 11.21s | 7 | 806 | | -. Francis Obikwelu |  POR | DQ | 3 | 912 |
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| Heat 4 12:59 | Team | time | L | N | | 1. Richard Thompson | TRI | 10.29s | 2 | 1051 | | 2. Anson Henry | CAN | 10.31s | 3 | 422 | | 3. Angel David Rodrrguez | ESP | 10.37s | 9 | 519 | | 4. Idrissa Sanou | BUR | 10.61s | 4 | 414 | | 5. Franklin Nazareno | ECU | 10.73s | 8 | 492 | | 6. Chris Meke Walasi | SOL | 11.07s | 6 | 1000 | | 7. Sloane Sanitoa | ASA | 12.64s | 7 | 321 | | 8. Mark Jelks | USA | 13.64s | 5 | 1107 |
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| Heat 5 12:38 | Team | time | L | N | | 1. Henry Vizcaino | CUB | 10.21s | 2 | 469 | | 2. Clement Campbell | JAM | 10.31s | 6 | 711 | | 3. Vicente de Lima | BRA | 10.34s | 5 | 388 | | 4. J-Mee Samuels | USA | 10.39s | 9 | 1137 | | 5. Wilfried Bingangoye | GAB | 10.53s | 8 | 581 | | 6. Yahya Hassan I. Habeeb |  KSA | 10.65s | 7 | 792 | | 7. Aisea Tohi | TGA | 11.10s | 4 | 1042 | | 8. Muhammad Haziq Haji Awang | BRU | 11.22s | 3 | 411 |
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| Heat 6 12:45 | Team | time | L | N | | 1. Keston Bledman | TRI | 10.29s | 4 | 1047 | | 2. Asafa Powell | JAM | 10.34s | 3 | 717 | | 3. Martial Mbandjock | FRA | 10.36s | 7 | 564 | | 4. Florin Suciu | ROU | 10.38s | 1 | 930 | | 5. Holder da Silva |  GBS | 10.68s | 2 | 609 | | 6. Ruslan Abbasov | AZE | 10.72s | 9 | 346 | | 7. Boris Savic | MNE | 10.88s | 5 | 837 | | 8. Moussa Camara | GUI | 11.49s | 8 | 661 | | 9. Odingo Gordon | MNT | 11.58s | 6 | 838 |
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| Heat 7 12:52 | Team | time | L | N | | 1. Nesta Carter | JAM | 10.17s | 1 | 712 | | 2. Naoki Tsukahara | JPN | 10.20s | 3 | 741 | | 3. Patrick Johnson | AUS | 10.25s | 2 | 326 | | 4. Rosario La Mastra | ITA | 10.27s | 6 | 698 | | 5. Sebastien Gattuso | MON | 10.55s | 4 | 839 | | 6. Jurgen Themen | SUR | 10.96s | 9 | 1014 | | 7. Jack Howard | FSM | 11.03s | 7 | 580 | | 8. Dayne O'Hara | NFI | 11.86s | 8 | 855 | | -. Samuel Francis |  QAT | DNF | 5 | 920 |
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| Heat 8 12:59 | Team | time | L | N | | 1. Churandy Martina | AHO | 10.16s | 6 | 302 | | 2. Mark Lewis-Francis | GBR | 10.21s | 7 | 594 | | 3. Marc Burns | TRI | 10.22s | 5 | 1048 | | 4. Joshua Ross | AUS | 10.34s | 4 | 324 | | 5. Dariusz Kuc | POL | 10.42s | 2 | 894 | | 6. Jan Žumer | SLO | 10.45s | 8 | 991 | | 7. Mounir Mahadi | CHA | 11.24s | 3 | 434 | | 8. Waleed Anwari | AFG | 11.75s | 9 | 301 |
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| Men 100m Startlist | | 75 Athletes /57 Countries | Team | Birth | Best | 2007 | Qual. | | 301 Walid Anwari | AFG | 17 Aug 86 | 11.68 | | 11.68 | | 302 Churandy Martina | AHO | 3 Jul 84 | 10.04 | 10.06 | 10.04 | | 303 Keiron Rogers | AIA | 8 Sep 88 | 11.02 | 11.02 | 11.02 | | 314 Brendan Christian | ANT | 11 Dec 83 | 10.11 | 10.24 | 10.24 | | 321 Sloane Sanitoa | ASA | 7 May 91 | | | 324 Joshua Ross | AUS | 9 Feb 81 | 10.08 | 10.08 | 10.08 | | 326 Patrick Johnson | AUS | 26 Sep 72 | 9.93 | 10.17 | 10.17 | | 346 Ruslan Abbasov | AZE | 24 Jun 86 | 10.28 | 10.28 | 10.28 | | 347 Derrick Atkins | BAH | 5 Jan 84 | 9.95 | 9.95 | 9.95 | | 386 Jos Carlos Moreira | BRA | 28 Sep 83 | 10.16 | 10.16 | 10.16 | | 387 Sandro Viana | BRA | 26 Mar 77 | 10.28 | 10.28 | 10.28 | | 388 Vicente De Lima | BRA | 4 Jun 77 | 10.13 | 10.14 | 10.14 | | 411 Muhammad Haziq Haji Awang | BRU | 1 Aug 89 | | | 414 Idrissa Sanou | BUR | 12 Jun 77 | 10.14 | 10.39 | 10.39 | | 415 Branger Bosse | CAF | 9 Mar 85 | 10.38 | 10.38 | 10.38 | | 422 Anson Henry | CAN | 9 Mar 79 | 10.12 | 10.30 | 10.12 | | 434 Mounir Mahadi | CHA | 18 Jan 86 | 11.08 | 11.19 | 11.19 | | 469 Henry Vizcaino | CUB | 16 May 80 | 10.18 | 10.18 | 10.18 | | 492 Franklin Nazareno | ECU | 24 Apr 87 | 10.22 | 10.22 | 10.22 | | 519 ngel David Rodrguez | ESP | 25 Apr 80 | 10.18 | 10.18 | 10.18 | | 542 Iowane Dovumatua | FIJ | 18 Jan 88 | 10.75 | 10.75 | 10.75 | | 555 David Alerte | FRA | 18 Sep 84 | 10.27 | 10.27 | 10.27 | | 564 Martial Mbandjock | FRA | 14 Oct 85 | 10.16 | 10.16 | 10.16 | | 580 Jack Howard | FSM | 21 Jul 81 | 10.86 | | 11.12 | | 581 Wilfried Bingangoye | GAB | 25 Mar 85 | 10.48 | 10.48 | 10.48 | | 586 Marlon Devonish | GBR | 1 Jun 76 | 10.06 | 10.06 | 10.06 | | 587 Tyrone Edgar | GBR | 29 Mar 82 | 10.13 | 10.13 | 10.13 | | 591 Craig Pickering | GBR | 16 Oct 86 | 10.14 | 10.14 | 10.14 | | 594 Mark Lewis-Francis | GBR | 4 Sep 82 | 10.04 | 10.19 | 10.16 | | 609 Holder Da Silva | GBS | 22 Jan 88 | 10.67 | 10.67 | 10.67 | | 611 Reginaldo Micha Ndong | GEQ | 14 Oct 86 | 10.96 | | | 661 Moussa Camara | GUI | 82 | | | 670 Roland Nmeth | HUN | 19 Sep 74 | 10.08 | 10.34 | 10.28 | | 674 Muhammad Patoniah | INA | 24 Jun 89 | | | 685 Paul Hession | IRL | 27 Jan 83 | 10.18 | 10.18 | 10.18 | | 694 Simone Collio | ITA | 27 Dec 79 | 10.19 | 10.19 | 10.19 | | 698 Rosario La Mastra | ITA | 2 Jan 84 | 10.28 | 10.28 | 10.28 | | 711 Clement Campbell | JAM | 19 Feb 75 | 10.02 | 10.02 | 10.02 | | 712 Nesta Carter | JAM | 10 Nov 85 | 10.11 | 10.11 | 10.11 | | 716 Steve Mullings | JAM | 29 Nov 82 | 10.04 | 10.05 | 10.05 | | 717 Asafa Powell | JAM | 23 Nov 82 | 9.77 | 9.90 | 9.77 | | 729 Nobuharu Asahara | JPN | 21 Jun 72 | 10.02 | 10.15 | 10.15 | | 741 Naoki Tsukahara | JPN | 10 May 85 | 10.23 | 10.23 | 10.23 | | 781 Tim Natua | KIR | 30 May 90 | 11.81 | | 11.81 | | 792 Yahya Hassan I. Habeeb | KSA | 2 Apr 86 | 10.28 | 10.28 | 10.28 | | 806 Hin Fong Pao | MAC | 27 Oct 85 | 11.26 | 11.26 | 11.26 | | 836 Darren Gilford | MLT | 11 Dec 82 | 10.54 | 10.66 | 10.66 | | 837 Boris Savic | MNE | 85 | 10.87 | 10.87 | 10.87 | | 838 Odingo Gordon | MNT | 18 Nov 82 | 11.53 | 11.53 | 11.53 | | 839 Sbastien Gattuso | MON | 28 Jun 71 | 10.57 | 10.57 | 10.57 | | 848 Guus Hoogmoed | NED | 27 Sep 81 | 10.15 | 10.15 | 10.15 | | 854 Tika Ram Tharu | NEP | 27 Jul 73 | | | 855 Dayne O'Hara | NFI | 20 Jul 89 | | | 857 Olusoji A. Fasuba | NGR | 9 Jul 84 | 9.85 | 10.16 | 9.85 | | 870 Tyrone Omar | NMA | 2 Aug 87 | 10.81 | 10.81 | 10.81 | | 874 Jj Capelle | NRU | 7 Jan 84 | 11.16 | | | 894 Dariusz Kuc | POL | 24 Apr 86 | 10.17 | 10.30 | 10.17 | | 912 Francis Obikwelu | POR | 22 Nov 78 | 9.86 | 10.06 | 9.99 | | 920 Samuel Francis | QAT | 27 Mar 87 | 9.99 | 9.99 | 9.99 | | 930 Florin Suciu | ROM | 18 May 83 | 10.24 | 10.24 | 10.24 | | 947 Sherwin Vries | RSA | 22 Mar 80 | 10.08 | 10.27 | 10.27 | | 989 Kim Collins | SKN | 5 Apr 76 | 9.98 | 10.27 | 10.27 | | 990 Gibrilla Pato Bangura | SLE | 10 May 85 | 10.31 | 10.37 | 10.37 | | 991 Jan Zumer | SLO | 9 Jun 82 | 10.21 | 10.34 | 10.21 | | 994 Matic Osovnikar | SLO | 19 Jan 80 | 10.14 | 10.19 | 10.14 | | 1000 Chris Meke Walasi | SOL | 18 May 80 | 10.78 | 10.78 | | | 1014 Jurgen Themen | SUR | 26 Oct 85 | 11.05 | 11.05 | 11.05 | | 1042 Aisea Tohi | TGA | 15 Apr 87 | 11.11 | 11.11 | 11.11 | | 1047 Keston Bledman | TRI | 8 Mar 88 | 10.14 | 10.14 | 10.14 | | 1048 Marc Burns | TRI | 7 Jan 83 | 9.96 | 10.20 | 10.02 | | 1051 Richard Thompson | TRI | 7 Jun 85 | 10.09 | 10.09 | 10.09 | | 1097 Leroy Dixon | USA | 20 Jun 83 | 10.07 | 10.07 | 10.07 | | 1100 Tyson Gay | USA | 9 Aug 82 | 9.84 | 9.84 | 9.84 | | 1107 Mark Jelks | USA | 10 Apr 84 | 10.02 | 10.04 | 10.04 | | 1137 J-Mee Samuels | USA | 20 May 87 | 10.08 | 10.22 | 10.22 |
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