| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 329 | Wilson Kipketer |  DEN | 1:47.29 Q | 
| 2 | 1560 | Savieri Ngidhi |  ZIM | 1:47.58 Q SB | 
| 3 | 1105 | Vebjørn Rodal |  NOR | 1:48.05 | 
| 4 | 1278 | Assane Diallo |  SEN | 1:48.06 | 
| 5 | 1500 | Khadevis Robinson |  USA | 1:48.31 | 
| 6 | 360 | José Manuel Cerezo |  ESP | 1:50.08 | 
| 92 | Milton Browne |  BAR | DQ | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 54.23 |  Wilson KIPKETER |  DEN | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 1336 | André Bucher |  SUI | 1:46.81 Q | 
| 2 | 1144 | Wojciech Kaldowski |  POL | 1:46.88 Q | 
| 3 | 174 | Arthémon Hatungimana |  BDI | 1:47.08 | 
| 4 | 552 | Mark Sesay |  GBR | 1:47.48 | 
| 5 | 964 | Mouhssin Chehibi |  MAR | 1:47.65 | 
| 6 | 876 | Frederick Onyancha |  KEN | 1:47.76 | 
| 7 | 1015 | Naseer Ismail |  MDV | 1:56.67 | 
| 116 | Karma Dorji |  BHU | DQ | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 53.25 |  Mouhssin CHEHIBI |  MAR | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 790 | Andrea Longo |  ITA | 1:45.01 Q | 
| 2 | 51 | Grant Cremer |  AUS | 1:45.21 Q PB | 
| 3 | 1602 | Adem Hecini |  ALG | 1:46.13 q | 
| 4 | 737 | James Nolan |  IRL | 1:46.38 q | 
| 5 | 890 | Soon-Hyung Kim |  KOR | 1:46.78 q | 
| 6 | 460 | Guillaume Douceret |  FRA | 1:47.69 | 
| 7 | 1331 | Mohamed Abd El Rahman |  SUD | 1:53.67 PB | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 51.19 |  James NOLAN |  IRL | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 1483 | Rich Kenah |  USA | 1:47.95 Q | 
| 2 | 865 | Kennedy Kimwetich |  KEN | 1:48.45 Q | 
| 3 | 1356 | Fakta Khaled Azerkan |  SWE | 1:48.46 | 
| 4 | 1559 | Crispen Mutakanyi |  ZIM | 1:48.73 | 
| 5 | 133 | Aleksandr Trutsko |  BLR | 1:48.99 | 
| 6 | 551 | Curtis Robb |  GBR | 1:49.13 | 
| 7 | 1009 | Batmunkh Banzragch |  MGL | 2:02.42 | 
| 1208 | Lucky Hadebe |  RSA | DQ | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 54.87 |  Lucky HADEBE |  RSA | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 11 | Djabir Saïd-Guerni |  ALG | 1:45.65 Q PB | 
| 2 | 1221 | Hezekiél Sepeng |  RSA | 1:46.01 Q | 
| 3 | 611 | Nico Motchebon |  GER | 1:46.18 q | 
| 4 | 976 | Rachid Khouia |  MAR | 1:46.96 | 
| 5 | 683 | Ian Roberts |  GUY | 1:47.53 | 
| 6 | 412 | Urmet Uusorg |  EST | 1:48.85 | 
| 7 | 1119 | Mohammed S.M. Albayed |  PLE | 1:52.53 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 51.10 |  Djabir SAÏD-GUERNI |  ALG | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 1201 | Johan Botha |  RSA | 1:46.59 Q | 
| 2 | 176 | Jean-Patrick Nduwimana |  BDI | 1:46.73 Q | 
| 3 | 616 | Nils Schumann |  GER | 1:46.79 q | 
| 4 | 1176 | João Pires |  POR | 1:47.08 | 
| 5 | 543 | Jason Lobo |  GBR | 1:47.53 | 
| 6 | 707 | Balázs Korányi |  HUN | 1:47.60 | 
| 7 | 956 | Carlos Calvo |  LUX | 1:48.48 NR | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 52.68 |  Nils SCHUMANN |  GER | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 867 | Japheth Kimutai |  KEN | 1:45.66 Q | 
| 2 | 321 | Roman Oravec |  CZE | 1:45.80 Q | 
| 3 | 1520 | Bryan Woodward |  USA | 1:45.98 q | 
| 4 | 143 | Glody Dube |  BOT | 1:46.67 q PB | 
| 5 | 216 | Zach Whitmarsh |  CAN | 1:47.01 | 
| 6 | 1104 | Tor Øivind Ødegard |  NOR | 1:47.07 | 
| 7 | 16 | Víctor Martínez |  AND | 1:48.73 | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 51.84 |  Glody DUBE |  BOT | 
| POS | BIB | ATHLETE | COUNTRY | MARK | 
|---|---|---|---|---|
| 1 | 438 | Wilson Kirwa |  FIN | 1:46.20 Q | 
| 2 | 386 | Roberto Parra |  ESP | 1:46.22 Q | 
| 3 | 296 | Norberto Téllez |  CUB | 1:46.24 q | 
| 4 | 971 | Mahjoub Haïda |  MAR | 1:46.86 | 
| 5 | 665 | Panayiótis Stroubákos |  GRE | 1:48.56 | 
| 6 | 732 | David Matthews |  IRL | 1:49.52 | 
| 7 | 1093 | Ketson Kabiriel |  NMI | 2:07.73 | 
| 1185 | Abdul Rahman Hasan Abdulla |  QAT | DNS | 
| Split | Mark | Athlete | COUNTRY | 
|---|---|---|---|
| 400 m | 51.46 |  David MATTHEWS |  IRL |