| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 895 | LaShawn Merritt |
USA
|
45.84 Q | 0.157 |
| 2 | 761 | Nagmeldin Ali Abubakr |
SUD
|
45.99 Q | 0.173 |
| 3 | 611 | Andrés RodrÃguez |
PAN
|
47.42 | 0.173 |
| 4 | 431 | Michael Gardener |
JAM
|
47.49 | 0.157 |
| 5 | 758 | Manoj Pushpa Kumara |
SRI
|
47.65 | 0.161 |
| 6 | 54 | Andretti Bain |
BAH
|
47.86 | 0.178 |
| 7 | 683 | Ruaan Grobler |
RSA
|
49.26 | 0.143 |
| 820 | Renny QUOW |
TTO
|
DQ | 0.243 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 91 | Obakeng Ngwigwa |
BOT
|
46.64 Q NJR | 0.166 |
| 2 | 30 | Sean Wroe |
AUS
|
46.80 Q PB | 0.240 |
| 3 | 880 | Keith Hinnant |
USA
|
46.93 q | 0.185 |
| 4 | 274 | Richard Buck |
GBR
|
47.18 | 0.166 |
| 5 | 455 | Kazunori Ota |
JPN
|
47.40 | 0.145 |
| 6 | 631 | Damian Kempa |
POL
|
47.62 | 0.182 |
| 7 | 414 | Claudio Licciardello |
ITA
|
48.19 | 0.171 |
| 8 | 454 | Yudai Sasaki |
JPN
|
48.27 | 0.180 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 712 | Valentin Kruglyakov |
RUS
|
46.46 Q | 0.171 |
| 2 | 831 | Serdar Tamac |
TUR
|
46.94 Q NJR | 0.143 |
| 3 | 94 | Paulo Roberto Orlando |
BRA
|
47.02 q | 0.155 |
| 4 | 163 | Željko Vincek |
CRO
|
47.08 | 0.237 |
| 5 | 593 | Cory Innes |
NZL
|
47.37 | 0.179 |
| 6 | 698 | Maksim Aleksandrenko |
RUS
|
47.79 | 0.103 |
| 7 | 31 | Ben Offereins |
AUS
|
48.25 | 0.169 |
| 185 | Roger Polydore |
DMA
|
DNF | 0.168 |