| Track and Field - Men's 400m Results |
| August 19 - Semifinal |
| 1 |
 |
LaShawn Merritt, United States |
44.12 |
| 2 |
 |
Jeremy Wariner, United States |
44.15 |
| 3 |
 |
Chris Brown, Bahamas |
44.59 |
| 4 |
 |
Martyn Rooney, Great Britain |
44.60 |
| 5 |
 |
Johan Wissman, Sweden |
44.64 |
| 6 |
 |
Leslie Djhone, France |
44.79 |
| 7 |
 |
Renny Quow, Trinidad and Tobago |
44.82 |
| 8 |
 |
Kevin Borlee, Belgium |
44.88 |
| 9 |
 |
David Neville, United States |
44.91 |
| 10 |
 |
Senga Gary Kikaya, Congo |
44.94 |
| 10 |
 |
Nery Brenes, Costa Rica |
44.94 |
| 12 |
 |
Saul Weipogwa, Nigeria |
45.02 |
| 13 |
 |
Joel Milburn, Australia |
45.06 |
| 13 |
 |
Williams Collazo, Cuba |
45.06 |
| 15 |
 |
Ricardo Chambers, Jamaica |
45.09 |
| 16 |
 |
Jonathan Borlee, Belgium |
45.11 |
| 17 |
 |
Tabarie Henry, U.S. Virgin Islands |
45.19 |
| 18 |
 |
Godday James, Nigeria |
45.24 |
| 19 |
 |
Andretti Bain, Bahamas |
45.52 |
| 20 |
 |
Michael Mathieu, Bahamas |
45.56 |
| 21 |
 |
Sean Wroe, Australia |
45.56 |
| 22 |
 |
Andrew Steele, Great Britain |
45.59 |
| 23 |
 |
Claudio Licciardello, Italy |
45.64 |
| 24 |
 |
Cedric Van Branteghem, Belgium |
45.81 |
| August 19 - Semifinal - Heat: 1 |
| 1 |
 |
Jeremy Wariner, United States |
44.15 |
| 2 |
 |
Chris Brown, Bahamas |
44.59 |
| 3 |
 |
Kevin Borlee, Belgium |
44.88 |
| 4 |
 |
Nery Brenes, Costa Rica |
44.94 |
| 5 |
 |
Saul Weipogwa, Nigeria |
45.02 |
| 6 |
 |
Williams Collazo, Cuba |
45.06 |
| 7 |
 |
Tabarie Henry, U.S. Virgin Islands |
45.19 |
| 8 |
 |
Claudio Licciardello, Italy |
45.64 |
| August 19 - Semifinal - Heat: 2 |
| 1 |
 |
Leslie Djhone, France |
44.79 |
| 2 |
 |
David Neville, United States |
44.91 |
| 3 |
 |
Joel Milburn, Australia |
45.06 |
| 4 |
 |
Ricardo Chambers, Jamaica |
45.09 |
| 5 |
 |
Jonathan Borlee, Belgium |
45.11 |
| 6 |
 |
Godday James, Nigeria |
45.24 |
| 7 |
 |
Andretti Bain, Bahamas |
45.52 |
| 8 |
 |
Andrew Steele, Great Britain |
45.59 |
| August 19 - Semifinal - Heat: 3 |
| 1 |
 |
LaShawn Merritt, United States |
44.12 |
| 2 |
 |
Martyn Rooney, Great Britain |
44.60 |
| 3 |
 |
Johan Wissman, Sweden |
44.64 |
| 4 |
 |
Renny Quow, Trinidad and Tobago |
44.82 |
| 5 |
 |
Senga Gary Kikaya, Congo |
44.94 |
| 6 |
 |
Michael Mathieu, Bahamas |
45.56 |
| 7 |
 |
Sean Wroe, Australia |
45.56 |
| 8 |
 |
Cedric Van Branteghem, Belgium |
45.81 |
| August 17 - Round 1 |
| 1 |
 |
Chris Brown, Bahamas |
44.79 |
| 2 |
 |
Joel Milburn, Australia |
44.80 |
| 3 |
 |
Johan Wissman, Sweden |
44.81 |
| 4 |
 |
Senga Gary Kikaya, Congo |
44.89 |
| 5 |
 |
Andrew Steele, Great Britain |
44.94 |
| 6 |
 |
LaShawn Merritt, United States |
44.96 |
| 7 |
 |
Martyn Rooney, Great Britain |
45.00 |
| 8 |
 |
Leslie Djhone, France |
45.12 |
| 9 |
 |
Renny Quow, Trinidad and Tobago |
45.13 |
| 10 |
 |
Sean Wroe, Australia |
45.17 |
| 10 |
 |
Michael Mathieu, Bahamas |
45.17 |
| 12 |
 |
Saul Weipogwa, Nigeria |
45.19 |
| 13 |
 |
Ricardo Chambers, Jamaica |
45.22 |
| 13 |
 |
David Neville, United States |
45.22 |
| 15 |
 |
Jeremy Wariner, United States |
45.23 |
| 16 |
 |
Claudio Licciardello, Italy |
45.25 |
| 17 |
 |
Jonathan Borlee, Belgium |
45.25 |
| 18 |
 |
Tabarie Henry, U.S. Virgin Islands |
45.36 |
| 18 |
 |
Nery Brenes, Costa Rica |
45.36 |
| 20 |
 |
Williams Collazo, Cuba |
45.37 |
| 21 |
 |
Kevin Borlee, Belgium |
45.43 |
| 22 |
 |
Godday James, Nigeria |
45.49 |
| 23 |
 |
Denis Alexeev, Russia |
45.52 |
| 24 |
 |
Cedric Van Branteghem, Belgium |
45.54 |
| 25 |
 |
Michael Blackwood, Jamaica |
45.56 |
| 26 |
 |
Ato Modibo, Trinidad and Tobago |
45.63 |
| 27 |
 |
Sanjay Ayre, Jamaica |
45.66 |
| 28 |
 |
Tyler Christopher, Canada |
45.67 |
| 29 |
 |
David Gillick, Ireland |
45.83 |
| 30 |
 |
Young Talkmore Nyongani, Zimbabwe |
45.89 |
| 31 |
 |
Andretti Bain, Bahamas |
45.96 |
| 32 |
 |
Maksim Dyldin, Russia |
46.03 |
| 33 |
 |
Eric Milazar, Mauritius |
46.06 |
| 34 |
 |
Erison Hurtault, Dominica |
46.10 |
| 35 |
 |
Alleyne Francique, Grenada |
46.15 |
| 36 |
 |
Mykhaylo Knysh, Ukraine |
46.28 |
| 36 |
 |
Arismendy Peguero Matos, Dominican Republic |
46.28 |
| 38 |
 |
Gakologelwang Masheto, Botswana |
46.29 |
| 39 |
 |
Joel Phillip, Grenada |
46.30 |
| 40 |
 |
Niko Verekauta, Fiji |
46.32 |
| 41 |
 |
Andrés Silva, Uruguay |
46.34 |
| 42 |
 |
Rudolf Gotz, Czech Republic |
46.38 |
| 43 |
 |
Yuzo Kanemaru, Japan |
46.39 |
| 44 |
 |
Felix Martinez Cuevas, Puerto Rico |
46.46 |
| 45 |
 |
Geiner Mosquera, Colombia |
46.59 |
| 46 |
 |
Fernando Almeida, Brazil |
46.60 |
| 47 |
 |
Lewis Banda, Zimbabwe |
46.76 |
| 48 |
 |
Vincent Mumo Kiilu, Kenya |
46.79 |
| 49 |
 |
Mathieu Gnanligo Fousseni, Benin |
47.10 |
| 50 |
 |
Nagm Eldin Ali, Sudan |
47.12 |
| 51 |
 |
Daniel Dabrowski, Poland |
47.83 |
| 52 |
 |
Siraj Williams, Liberia |
47.89 |
| 53 |
 |
Ivano Bucci, San Marino |
48.54 |
| 54 |
 |
Naiel Santiago D'almeida, Sao Tome and Principe |
49.08 |
| 55 |
 |
Liu Xiaosheng, China |
53.11 |
| N/A |
 |
Calfornia Molefe, Botswana |
DNS |
| August 17 - Round 1 - Heat: 1 |
| 1 |
 |
Leslie Djhone, France |
45.12 |
| 2 |
 |
David Neville, United States |
45.22 |
| 3 |
 |
Williams Collazo, Cuba |
45.37 |
| 4 |
 |
Kevin Borlee, Belgium |
45.43 |
| 5 |
 |
Denis Alexeev, Russia |
45.52 |
| 6 |
 |
Young Talkmore Nyongani, Zimbabwe |
45.89 |
| 7 |
 |
Eric Milazar, Mauritius |
46.06 |
| 8 |
 |
Gakologelwang Masheto, Botswana |
46.29 |
| August 17 - Round 1 - Heat: 2 |
| 1 |
 |
Chris Brown, Bahamas |
44.79 |
| 2 |
 |
Joel Milburn, Australia |
44.80 |
| 3 |
 |
Johan Wissman, Sweden |
44.81 |
| 4 |
 |
Senga Gary Kikaya, Congo |
44.89 |
| 5 |
 |
Sanjay Ayre, Jamaica |
45.66 |
| 6 |
 |
Arismendy Peguero Matos, Dominican Republic |
46.28 |
| 7 |
 |
Ivano Bucci, San Marino |
48.54 |
| 8 |
 |
Liu Xiaosheng, China |
53.11 |
| August 17 - Round 1 - Heat: 3 |
| 1 |
 |
Nery Brenes, Costa Rica |
45.36 |
| 2 |
 |
Godday James, Nigeria |
45.49 |
| 3 |
 |
Andretti Bain, Bahamas |
45.96 |
| 4 |
 |
Niko Verekauta, Fiji |
46.32 |
| 5 |
 |
Fernando Almeida, Brazil |
46.60 |
| 6 |
 |
Lewis Banda, Zimbabwe |
46.76 |
| 7 |
 |
Vincent Mumo Kiilu, Kenya |
46.79 |
| 8 |
 |
Nagm Eldin Ali, Sudan |
47.12 |
| August 17 - Round 1 - Heat: 4 |
| 1 |
 |
Martyn Rooney, Great Britain |
45.00 |
| 2 |
 |
Sean Wroe, Australia |
45.17 |
| 3 |
 |
Ricardo Chambers, Jamaica |
45.22 |
| 4 |
 |
Erison Hurtault, Dominica |
46.10 |
| 5 |
 |
Andrés Silva, Uruguay |
46.34 |
| 6 |
 |
Rudolf Gotz, Czech Republic |
46.38 |
| 7 |
 |
Yuzo Kanemaru, Japan |
46.39 |
| N/A |
 |
Calfornia Molefe, Botswana |
DNS |
| August 17 - Round 1 - Heat: 5 |
| 1 |
 |
LaShawn Merritt, United States |
44.96 |
| 2 |
 |
Saul Weipogwa, Nigeria |
45.19 |
| 3 |
 |
Claudio Licciardello, Italy |
45.25 |
| 4 |
 |
Jonathan Borlee, Belgium |
45.25 |
| 5 |
 |
Ato Modibo, Trinidad and Tobago |
45.63 |
| 6 |
 |
Alleyne Francique, Grenada |
46.15 |
| 7 |
 |
Geiner Mosquera, Colombia |
46.59 |
| 8 |
 |
Siraj Williams, Liberia |
47.89 |
| August 17 - Round 1 - Heat: 6 |
| 1 |
 |
Andrew Steele, Great Britain |
44.94 |
| 2 |
 |
Renny Quow, Trinidad and Tobago |
45.13 |
| 3 |
 |
Michael Mathieu, Bahamas |
45.17 |
| 4 |
 |
Michael Blackwood, Jamaica |
45.56 |
| 5 |
 |
Tyler Christopher, Canada |
45.67 |
| 6 |
 |
Joel Phillip, Grenada |
46.30 |
| 7 |
 |
Felix Martinez Cuevas, Puerto Rico |
46.46 |
| 8 |
 |
Daniel Dabrowski, Poland |
47.83 |
| August 17 - Round 1 - Heat: 7 |
| 1 |
 |
Jeremy Wariner, United States |
45.23 |
| 2 |
 |
Tabarie Henry, U.S. Virgin Islands |
45.36 |
| 3 |
 |
Cedric Van Branteghem, Belgium |
45.54 |
| 4 |
 |
David Gillick, Ireland |
45.83 |
| 5 |
 |
Maksim Dyldin, Russia |
46.03 |
| 6 |
 |
Mykhaylo Knysh, Ukraine |
46.28 |
| 7 |
 |
Mathieu Gnanligo Fousseni, Benin |
47.10 |
| 8 |
 |
Naiel Santiago D'almeida, Sao Tome and Principe |
49.08 |