Semifinal Heat 1 | Heat 1,
August 21, 9:15PM |
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| Name | Country | Score | |
|---|
| Jeremy Wariner | USA | 44.87 (Q) | | | Michael Blackwood | JAM | 45.00 (Q) | | | Leslie Djhone | FRA | 45.01 | | | Lewis Banda | ZWE | 45.23 | | | Eric Milazar | MUS | 45.23 | | | Gary Kikaya | COD | 45.58 | | | Ezra Sambu | KEN | 45.84 | | | Cedric van Branteghem | BEL | 46.03 | |
Semifinal Heat 2 | Heat 2,
August 21, 9:22PM |
|---|
| Name | Country | Score | |
|---|
| Derrick Brew | USA | 45.05 (Q) | | | Davian Clarke | JAM | 45.27 (Q) | | | Christopher Brown | BHS | 45.31 | | | Geyman Lopez | CUB | 45.52 | | | Alejandro Cardenas | MEX | 45.64 | | | K Mathews Binu | IND | 45.97 | | | Matija Sestak | SVN | 46.54 | | | Anton Galkin | RUS | |
Round 1 | Heat 8,
August 20, 9:52PM |
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| Name | Country | Score | |
|---|
| Leslie Djhone | FRA | 45.40 (Q) | | | Ezra Sambu | KEN | 45.59 (Q) | | | Timothey Benjamin | GBR | 45.69 | | | Clinton Hill | AUS | 45.89 | | | Adem Hecini | DZA | 46.50 | | | Luis Luna | VEN | 47.92 | | | Jonni Lowe | HND | 48.06 | | | Anderson Jorge Oliveira dos Santos | BRA | 48.77 | |
| Heat 7,
August 20, 9:46PM |
|---|
| Name | Country | Score | |
|---|
| Michael Blackwood | JAM | 45.23 (Q) | | | Hamdan O Al Bishi | SAU | 45.31 (Q) | | | Saul Weigopwa | NGA | 45.59 | | | Matija Sestak | SVN | 45.88 | | | Yuki Yamaguchi | JPN | 46.16 | | | Nagmeldin Ali Abubakr | SDN | 46.32 | | | Sajid Muhammad | PAK | 47.45 | | | Moses Kamut | VUT | 48.14 | |
| Heat 6,
August 20, 9:40PM |
|---|
| Name | Country | Score | |
|---|
| Jeremy Wariner | USA | 45.56 (Q) | | | Ingo Schultz | DEU | 45.88 (Q) | | | Young Talkmore Nyongani | ZWE | 46.03 | | | Zsolt Szeglet | HUN | 46.16 | | | Malachi Davis | GBR | 46.28 | | | Oleg Mishukov | RUS | 46.41 | | | Dadi Denis | HTI | 47.57 | | | Victor Kibet | KEN | |
| Heat 5,
August 20, 9:34PM |
|---|
| Name | Country | Score | |
|---|
| Carlos Santa | DOM | 45.31 (Q) | | | Lewis Banda | ZWE | 45.37 (Q) | | | K Mathews Binu | IND | 45.48 | | | Cedric van Branteghem | BEL | 45.70 | | | Calfornia Molefe | BWA | 45.88 | | | Chris Lloyd | DMA | 47.98 | | | Fawzi Al Shammari | KWT | 48.25 | | | Saeed Al Adhreai | YEM | 49.39 | |
| Heat 4,
August 20, 9:28PM |
|---|
| Name | Country | Score | |
|---|
| Derrick Brew | USA | 45.41 (Q) | | | Brandon Simpson | JAM | 45.61 (Q) | | | Sofiane Labidi | TUN | 46.04 | | | Daniel Caines | GBR | 46.15 | | | Rohan Pradeep Kumara | LKA | 46.20 | | | Evans Marie | SYC | 48.23 | | | Lezin Christian Elongo Ngoyikonda | COG | |
| Heat 3,
August 20, 9:22PM |
|---|
| Name | Country | Score | |
|---|
| Geyman Lopez | CUB | 45.44 (Q) | | | Alejandro Cardenas | MEX | 45.46 | | | Gary Kikaya | COD | 45.57 | | | Ato Modibo | TTO | 46.29 | | | Mitsuhiro Sato | JPN | 46.70 | | | Takeshi Fujiwara | SLV | 48.46 | | | Youba Hmeida | MRT | 49.18 | | | Anton Galkin | RUS | |
| Heat 2,
August 20, 9:16PM |
|---|
| Name | Country | Score | |
|---|
| Christopher Brown | BHS | 45.09 (Q) | | | Otis Harris | USA | 45.11 (Q) | | | Eric Milazar | MUS | 45.34 | | | Casey Vincent | AUS | 46.09 | | | Vincent Mumo Kiilu | KEN | 46.31 | | | Andres Silva | URY | 46.48 | | | Stilianos Dimotsios | GRC | 46.51 | | | Abdulla Mohamed Hussein | SOM | 51.52 | |
| Heat 1,
August 20, 9:10PM |
|---|
| Name | Country | Score | |
|---|
| Alleyne Francique | GRD | 45.32 (Q) | | | Davian Clarke | JAM | 45.54 (Q) | | | Marcus la Grange | ZAF | 45.95 | | | Piotr Klimczak | POL | 46.23 | | | Jun Osakada | JPN | 46.39 | | | Lloyd Zvasiya | ZWE | 47.19 | | | David Canal | ESP | 47.23 | | | Danilson Ricciuli | GNB | 49.27 | |
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