| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 504 | Robert Tobin | 
                                         
                                        GBR
                                     | 
                                    45.50 Q | 0.179 | 
| 2 | 619 | David Gillick | 
                                         
                                        IRL
                                     | 
                                    45.54 Q | 0.169 | 
| 3 | 1055 | Rabah YOUSIF | 
                                         
                                        SUD
                                     | 
                                    45.55 Q PB | 0.143 | 
| 4 | 1197 | Lionel Larry | 
                                         
                                        USA
                                     | 
                                    45.64 q | 0.152 | 
| 5 | 1260 | Young Talkmore Nyongani | 
                                         
                                        ZIM
                                     | 
                                    45.92 | 0.178 | 
| 6 | 174 | Cedric van Branteghem | 
                                         
                                        BEL
                                     | 
                                    45.94 | 0.155 | 
| 7 | 687 | Hideyuki Hirose | 
                                         
                                        JPN
                                     | 
                                    46.80 | 0.161 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1113 | Renny QUOW | 
                                         
                                        TTO
                                     | 
                                    45.21 Q | 0.202 | 
| 2 | 295 | Williams Collazo | 
                                         
                                        CUB
                                     | 
                                    45.52 Q | 0.171 | 
| 3 | 176 | Kévin BORLÉE | 
                                         
                                        BEL
                                     | 
                                    45.61 Q | 0.144 | 
| 4 | 909 | Marcin Marciniszyn | 
                                         
                                        POL
                                     | 
                                    45.77 SB | 0.167 | 
| 5 | 322 | Arismendy Peguero | 
                                         
                                        DOM
                                     | 
                                    46.13 | 0.178 | 
| 6 | 188 | Mathieu Gnanligo | 
                                         
                                        BEN
                                     | 
                                    47.00 SB | 0.168 | 
| 7 | 897 | Nelson Stone | 
                                         
                                        PNG
                                     | 
                                    47.13 | 0.239 | 
| 157 | Michael Mathieu | 
                                         
                                        BAH
                                     | 
                                    DQ | 0.176 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 160 | Chris Brown | 
                                         
                                        BAH
                                     | 
                                    45.53 Q | 0.158 | 
| 2 | 490 | Michael Bingham | 
                                         
                                        GBR
                                     | 
                                    45.54 Q | 0.149 | 
| 3 | 130 | Joel Milburn | 
                                         
                                        AUS
                                     | 
                                    45.56 Q SB | 0.162 | 
| 4 | 840 | Eric Milazar | 
                                         
                                        MRI
                                     | 
                                    46.39 | 0.170 | 
| 5 | 209 | Isaac MAKWALA | 
                                         
                                        BOT
                                     | 
                                    46.45 | 0.177 | 
| 6 | 1052 | Nagmeldin Ali Abubakr | 
                                         
                                        SUD
                                     | 
                                    46.48 | 0.158 | 
| 7 | 1163 | Andrés Silva | 
                                         
                                        URU
                                     | 
                                    46.86 | 0.167 | 
| 8 | 842 | Thet Zaw Win | 
                                         
                                        MYA
                                     | 
                                    51.41 PB | 0.176 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1206 | LaShawn Merritt | 
                                         
                                        USA
                                     | 
                                    45.23 Q | 0.151 | 
| 2 | 127 | John Steffensen | 
                                         
                                        AUS
                                     | 
                                    45.37 Q | 0.150 | 
| 3 | 638 | Matteo GALVAN | 
                                         
                                        ITA
                                     | 
                                    45.86 Q PB | 0.150 | 
| 4 | 946 | Héctor Carrasquillo | 
                                         
                                        PUR
                                     | 
                                    46.11 | 0.186 | 
| 5 | 327 | Alvin Harrison | 
                                         
                                        DOM
                                     | 
                                    46.67 | 0.152 | 
| 279 | Gary Kikaya | 
                                         
                                        COD
                                     | 
                                    DQ | 0.153 | |
| 453 | Yannick Fonsat | 
                                         
                                        FRA
                                     | 
                                    DNS | 0.000 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 161 | Ramon Miller | 
                                         
                                        BAH
                                     | 
                                    45.00 Q PB | 0.143 | 
| 2 | 448 | Leslie Djhone | 
                                         
                                        FRA
                                     | 
                                    45.20 Q | 0.165 | 
| 3 | 1085 | Johan Wissman | 
                                         
                                        SWE
                                     | 
                                    45.83 Q | 0.176 | 
| 4 | 991 | Maksim Dyldin | 
                                         
                                        RUS
                                     | 
                                    45.91 | 0.172 | 
| 5 | 1222 | Gil Roberts | 
                                         
                                        USA
                                     | 
                                    46.41 | 0.163 | 
| 6 | 738 | Mark Kiprotich Muttai | 
                                         
                                        KEN
                                     | 
                                    47.04 | 0.176 | 
| 7 | 1050 | Naiel d'Almeida | 
                                         
                                        STP
                                     | 
                                    49.47 | 0.114 | 
| 862 | James Godday | 
                                         
                                        NGR
                                     | 
                                    DNS | 0.000 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 1242 | Jeremy Wariner | 
                                         
                                        USA
                                     | 
                                    45.54 Q | 0.178 | 
| 2 | 658 | Ricardo Chambers | 
                                         
                                        JAM
                                     | 
                                    45.57 Q | 0.172 | 
| 3 | 460 | Teddy Atine - Venel | 
                                         
                                        FRA
                                     | 
                                    46.16 Q | 0.161 | 
| 4 | 696 | Yuzo Kanemaru | 
                                         
                                        JPN
                                     | 
                                    46.83 | 0.157 | 
| 5 | 763 | Youssef Ahmed MASRAHI | 
                                         
                                        KSA
                                     | 
                                    47.03 | 0.177 | 
| 6 | 974 | Pieter Smith | 
                                         
                                        RSA
                                     | 
                                    48.14 | 0.192 | 
| 287 | Nery Brenes | 
                                         
                                        CRC
                                     | 
                                    DNS | 0.000 | 
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time | 
|---|---|---|---|---|---|
| 1 | 629 | Tabarie Henry | 
                                         
                                        ISV
                                     | 
                                    45.14 Q | 0.137 | 
| 2 | 128 | Sean Wroe | 
                                         
                                        AUS
                                     | 
                                    45.31 Q | 0.166 | 
| 3 | 505 | Martyn ROONEY | 
                                         
                                        GBR
                                     | 
                                    45.45 Q | 0.189 | 
| 4 | 321 | Erison Hurtault | 
                                         
                                        DMA
                                     | 
                                    45.55 q SB | 0.148 | 
| 5 | 787 | Mohamed Khouaja | 
                                         
                                        LBA
                                     | 
                                    45.56 q NR | 0.207 | 
| 6 | 864 | Saul Welgopwa | 
                                         
                                        NGR
                                     | 
                                    46.42 | 0.179 | 
| 7 | 589 | Rondell Bartholomew | 
                                         
                                        GRN
                                     | 
                                    46.85 | 0.209 | 
| 8 | 871 | Moumouni Kimba | 
                                         
                                        NIG
                                     | 
                                    50.93 PB | 0.260 |