# 2005 World Championships in Athletics – Men's 100 metres

The men's 100 metres at the 2005 World Championships in Athletics was held at the Helsinki Olympic Stadium on August 6 and August 7. The winning margin was 0.17 seconds which as of 2024 is the greatest winning margin for the men's 100 metres at these championships.
The top three runners in each of the initial eight heats automatically qualified for the second round. The next ten fastest runners from across the heats also qualified. Those 32 runners competed in four heats in the second round, with the top three runners from each heat and the single next fastest runner qualifying for the semifinals. There were two semifinal heats, and only the top four from each heat advanced to the final.

## Records

Before the competition records were as follows:
| Record | Athlete & Nat. | Perf. | Location | Date |
| World record | Asafa Powell (JAM) | 9.77 | Athens, Greece | 14 June 2005 |
| Championship record | Maurice Greene (USA) | 9.80 | Seville, Spain | 22 August 1999 |
| World Leading | Asafa Powell (JAM) | 9.77 | Athens, Greece | 14 June 2005 |
| African Record | Frankie Fredericks (NAM) | 9.86 | Lausanne, Switzerland | 3 July 1996 |
| Asian Record | Koji Ito (JPN) | 10.00 | Bangkok, Thailand | 13 December 1998 |
| North, Central American and Caribbean record | Asafa Powell (JAM) | 9.77 | Athens, Greece | 14 June 2005 |
| South American Record | Robson da Silva (BRA) | 10.00 | Mexico City, Mexico | 22 July 1988 |
| European Record | Francis Obikwelu (POR) | 9.86 | Athens, Greece | 22 August 2004 |
| Oceanian record | Patrick Johnson (AUS) | 9.93 | Mito, Japan | 5 May 2003 |

## Medals

| Gold | Silver | Bronze |
| Justin Gatlin United States | Michael Frater Jamaica | Kim Collins Saint Kitts and Nevis |

## Results

All times shown are in seconds. Q denotes qualification by place. q denotes qualification by time. DNS denotes did not start. DNF denotes did not finish. AR denotes area record NR denotes national record. PB denotes personal best. SB denotes season's best.

### Round 1 (Heats)

Round 1 took place on 6 August, with the 62 athletes involved being split into 8 heats of 7 or 8 athletes each. The first 3 athletes in each heat ( Q ) and the next 8 fastest ( q ) qualified for the quarter-final.
Wind: Heat 1: +0.6 m/s, Heat 2: +0.9 m/s, Heat 3: +0.9 m/s, Heat 4: +0.4 m/s, Heat 5: 0.0 m/s, Heat 6: +0.4 m/s, Heat 7: +0.3 m/s, Heat 8: −1.4 m/s
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 5 | Leonard Scott | United States (USA) | 10.12 | Q |
| 2 | 2 | Ronald Pognon | France (FRA) | 10.15 | Q |
| 2 | 3 | Dwight Thomas | Jamaica (JAM) | 10.15 | Q |
| 4 | 2 | Ainsley Waugh | Jamaica (JAM) | 10.16 | Q, PB |
| 4 | 4 | Justin Gatlin | United States (USA) | 10.16 | Q |
| 6 | 1 | Francis Obikwelu | Portugal (POR) | 10.17 | Q |
| 6 | 5 | Uchenna Emedolu | Nigeria (NGR) | 10.17 | Q |
| 8 | 2 | Olusoji Fasuba | Nigeria (NGR) | 10.19 | Q |
| 8 | 8 | Jason Gardener | Great Britain & N.I. (GBR) | 10.19 | Q |
| 10 | 3 | Patrick Johnson | Australia (AUS) | 10.20 | Q, SB |
| 11 | 1 | Shawn Crawford | United States (USA) | 10.23 | Q |
| 12 | 3 | Darrel Brown | Trinidad and Tobago (TTO) | 10.25 | Q |
| 12 | 6 | Marlon Devonish | Great Britain & N.I. (GBR) | 10.25 | Q |
| 14 | 1 | Simone Collio | Italy (ITA) | 10.27 | Q |
| 15 | 4 | Joshua Ross | Australia (AUS) | 10.28 | Q |
| 16 | 8 | Aziz Zakari | Ghana (GHA) | 10.30 | Q |
| 17 | 5 | Jacey Harper | Trinidad and Tobago (TTO) | 10.31 | Q |
| 17 | 7 | Kim Collins | Saint Kitts and Nevis (SKN) | 10.31 | Q |
| 17 | 2 | Guus Hoogmoed | Netherlands (NED) | 10.31 | q |
| 20 | 7 | Michael Frater | Jamaica (JAM) | 10.32 | Q |
| 20 | 5 | Obadele Thompson | Barbados (BAR) | 10.32 | q |
| 22 | 8 | Deji Aliu | Nigeria (NGR) | 10.36 | Q |
| 23 | 2 | Lukasz Chyla | Poland (POL) | 10.39 | q |
| 24 | 4 | Nobuharu Asahara | Japan (JPN) | 10.40 | Q |
| 24 | 1 | Nicolas Macrozonaris | Canada (CAN) | 10.40 | q, SB |
| 24 | 3 | Matic Osovnikar | Slovenia (SLO) | 10.40 | q |
| 24 | 4 | Mark Lewis-Francis | Great Britain & N.I. (GBR) | 10.40 | q |
| 28 | 6 | Marc Burns | Trinidad and Tobago (TTO) | 10.42 | Q |
| 29 | 7 | Idrissa Sanou | Burkina Faso (BUR) | 10.43 | Q |
| 30 | 7 | Salem Mubarak Al-Yami | Saudi Arabia (KSA) | 10.45 | q |
| 31 | 6 | Churandy Martina | Netherlands Antilles (AHO) | 10.46 | Q |
| 32 | 7 | Juan Sainfleur | Dominican Republic (DOM) | 10.47 | q |
| 33 | 3 | Markus Pöyhönen | Finland (FIN) | 10.49 | |
| 33 | 8 | Daniel Bailey | Antigua and Barbuda (ANT) | 10.49 | |
| 35 | 5 | Pierre Browne | Canada (CAN) | 10.50 | |
| 36 | 4 | Leigh Julius | South Africa (RSA) | 10.51 | |
| 37 | 8 | Cláudio Roberto Souza | Brazil (BRA) | 10.55 | |
| 38 | 6 | Tlhalosang Molapisi | Botswana (BOT) | 10.71 | |
| 39 | 7 | Rolando Palacios | Honduras (HON) | 10.73 | NR |
| 40 | 1 | Philam Garcia | Guam (GUM) | 10.79 | |
| 41 | 2 | Shameer Ayub | Singapore (SIN) | 10.82 | SB |
| 42 | 7 | Wilfried Bingangoye | Gabon (GAB) | 10.86 | SB |
| 43 | 7 | Darren Gilford | Malta (MLT) | 10.89 | |
| 44 | 3 | Souhalia Alamou | Benin (BEN) | 10.90 | SB |
| 45 | 3 | Wally Kirika | Papua New Guinea (PNG) | 11.01 | |
| 45 | 8 | Fonseca Neto | Angola (ANG) | 11.01 | PB |
| 47 | 6 | Yazaldes Nascimento | São Tomé and Príncipe (STP) | 11.07 | SB |
| 48 | 2 | Chi Kun Au | Macau (MAC) | 11.11 | |
| 49 | 6 | John Howard | Micronesia (FSM) | 11.24 | SB |
| 50 | 6 | Ali Shareef | Maldives (MDV) | 11.44 | |
| 51 | 4 | Darrel Roligat | Northern Mariana Islands (NMI) | 11.49 | |
| 52 | 1 | Derrick Atkins | Bahamas (BAH) | 11.57 | |
| 52 | 8 | Reginaldo Micha Ndong | Equatorial Guinea (GEQ) | 11.57 | |
| 54 | 5 | Deamo Baguga | Nauru (NRU) | 11.64 | PB |
| 55 | 5 | Phomma Kheuabmavong | Laos (LAO) | 11.83 | |
| 56 | 1 | Harmon Harmon | Cook Islands (COK) | 11.84 | SB |
| 57 | 4 | Daraphirit | Cambodia (CAM) | 11.85 | |
| 58 | 1 | Mariuti Uan | Kiribati (KIR) | 11.92 | PB |
| | 6 | Eric Pacome N'dri | Ivory Coast (CIV) | DNF | |
| | 2 | Khalid Brooks | Anguilla (AIA) | DNS | |
| | 3 | Domeio Kabua | Marshall Islands (MHL) | DNS | |
| | 8 | Christie van Wyk | Namibia (NAM) | DNS | |

### Round 2 (Quarter-Finals)

Round 2 took place on 6 August, with the 32 athletes involved being split into 4 heats of 8 athletes each. The first 3 athletes in each heat ( Q ) and the next 4 fastest ( q ) qualified for the semi-final.
Wind: Heat 1: −2.0 m/s, Heat 2: −1.2 m/s, Heat 3: +0.7 m/s, Heat 4: −1.0 m/s
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 4 | Darrel Brown | Trinidad and Tobago (TTO) | 10.10 | Q |
| 2 | 4 | Ronald Pognon | France (FRA) | 10.11 | Q |
| 3 | 4 | Michael Frater | Jamaica (JAM) | 10.12 | Q |
| 4 | 4 | Uchenna Emedolu | Nigeria (NGR) | 10.16 | q |
| 5 | 2 | Leonard Scott | United States (USA) | 10.19 | Q |
| 5 | 3 | Francis Obikwelu | Portugal (POR) | 10.19 | Q |
| 7 | 4 | Marlon Devonish | Great Britain & N.I. (GBR) | 10.20 | q |
| 8 | 2 | Olusoji Fasuba | Nigeria (NGR) | 10.24 | Q |
| 9 | 3 | Shawn Crawford | United States (USA) | 10.25 | Q |
| 10 | 1 | Justin Gatlin | United States (USA) | 10.27 | Q |
| 11 | 1 | Dwight Thomas | United States (USA) | 10.28 | Q |
| 12 | 2 | Marc Burns | Trinidad and Tobago (TTO) | 10.29 | Q |
| 13 | 3 | Jason Gardener | Great Britain & N.I. (GBR) | 10.31 | Q |
| 13 | 3 | Joshua Ross | Australia (AUS) | 10.31 | q |
| 15 | 2 | Kim Collins | Saint Kitts and Nevis (SKN) | 10.32 | q |
| 16 | 4 | Obadele Thompson | Barbados (BAR) | 10.34 | |
| 17 | 2 | Ainsley Waugh | Jamaica (JAM) | 10.39 | |
| 17 | 3 | Deji Aliu | Nigeria (NGR) | 10.39 | |
| 17 | 3 | Jacey Harper | Trinidad and Tobago (TTO) | 10.39 | |
| 20 | 1 | Aziz Zakari | Ghana (GHA) | 10.41 | Q |
| 21 | 1 | Patrick Johnson | Australia (AUS) | 10.48 | |
| 21 | 2 | Churandy Martina | Netherlands Antilles (AHO) | 10.48 | |
| 21 | 3 | Nicolas Macrozonaris | Canada (CAN) | 10.48 | |
| 21 | 3 | Matic Osovnikar | Slovenia (SLO) | 10.48 | |
| 21 | 4 | Salem Mubarak Al-Yami | Saudi Arabia (KSA) | 10.48 | |
| 26 | 2 | Guus Hoogmoed | Netherlands (NED) | 10.51 | |
| 27 | 1 | Mark Lewis-Francis | Great Britain & N.I. (GBR) | 10.53 | |
| 28 | 1 | Nobuharu Asahara | Japan (JPN) | 10.58 | |
| 29 | 1 | Simone Collio | Italy (ITA) | 10.60 | |
| 30 | 2 | Juan Sainfleur | Dominican Republic (DOM) | 10.74 | |
| 31 | 4 | Idrissa Sanou | Burkina Faso (BUR) | 10.80 | |
| | 1 | Lukasz Chyla | Poland (POL) | DNS | |

### Semifinals

The semifinals took place on 7 August, with the 16 athletes involved being split into 2 heats of 8 athletes each. The first 4 athletes in each heat ( Q ) qualified for the final.
Wind: Heat 1: +0.5 m/s, Heat 2: −1.0 m/s
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | 2 | Justin Gatlin | United States (USA) | 9.99 | Q |
| 2 | 2 | Aziz Zakari | Ghana (GHA) | 10.00 | Q |
| 3 | 2 | Dwight Thomas | Jamaica (JAM) | 10.06 | Q |
| 4 | 2 | Kim Collins | Saint Kitts and Nevis (SKN) | 10.07 | Q |
| 5 | 1 | Leonard Scott | United States (USA) | 10.08 | Q |
| 5 | 2 | Jason Gardener | Great Britain & N.I. (GBR) | 10.08 | SB |
| 7 | 1 | Michael Frater | Jamaica (JAM) | 10.09 | Q |
| 8 | 1 | Marc Burns | Trinidad and Tobago (TTO) | 10.12 | Q |
| 9 | 1 | Francis Obikwelu | Portugal (POR) | 10.13 | Q |
| 10 | 2 | Darrel Brown | Trinidad and Tobago (TTO) | 10.16 | |
| 10 | 2 | Uchenna Emedolu | Nigeria (NGR) | 10.16 | |
| 12 | 2 | Ronald Pognon | France (FRA) | 10.17 | |
| 13 | 1 | Olusoji Fasuba | Nigeria (NGR) | 10.18 | |
| 14 | 1 | Marlon Devonish | Great Britain & N.I. (GBR) | 10.24 | |
| 15 | 1 | Joshua Ross | Australia (AUS) | 10.27 | |
| 16 | 1 | Shawn Crawford | United States (USA) | 10.28 | |

### Final

The final started at 21:35 on 7 August.
Wind: +0.4 m/s
| Rank | Lane | Name | Nationality | Time | Notes |
| | 5 | Justin Gatlin | United States (USA) | 9.88 | =SB |
| | 4 | Michael Frater | Jamaica (JAM) | 10.05 | |
| | 2 | Kim Collins | Saint Kitts and Nevis (SKN) | 10.05 | |
| 4 | 8 | Francis Obikwelu | Portugal (POR) | 10.07 | |
| 5 | 7 | Dwight Thomas | Jamaica (JAM) | 10.09 | |
| 6 | 3 | Leonard Scott | United States (USA) | 10.13 | |
| 7 | 1 | Marc Burns | Trinidad and Tobago (TTO) | 10.14 | |
| 8 | 6 | Aziz Zakari | Ghana (GHA) | 10.20 | |