| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 889 | Young Talkmore Nyongani |
ZIM
|
46.15 Q | 0.174 |
| 2 | 464 | Jermaine Gonzales |
JAM
|
46.17 Q | 0.192 |
| 3 | 669 | Piotr Zrada |
POL
|
46.47 q PB | 0.127 |
| 4 | 434 | David McCarthy |
IRL
|
46.77 q | 0.149 |
| 5 | 874 | Luis Luna |
VEN
|
46.93 | 0.146 |
| 6 | 32 | Keith Sheehy |
AUS
|
47.68 | 0.182 |
| 619 | Robert Lathouwers |
NED
|
DQ | 0.219 | |
| 551 | Mohammed Al-Mowallad |
KSA
|
DNF | 0.174 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 839 | Jonathan Fortenberry |
USA
|
46.16 Q | 0.161 |
| 2 | 74 | Wilan Louis |
BAR
|
46.26 Q NJ | 0.171 |
| 3 | 698 | Florin Suciu |
ROU
|
47.09 | 0.289 |
| 4 | 709 | Shaine Morrison |
RSA
|
47.52 | 0.136 |
| 5 | 108 | Diego Venâncio |
BRA
|
47.57 | 0.176 |
| 6 | 583 | Hicham Chliyeh |
MAR
|
47.66 | 0.208 |
| 7 | 351 | Kamghe Gaba |
GER
|
47.67 | 0.189 |
| 8 | 137 | Ryan Therrien |
CAN
|
48.58 | 0.255 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 860 | Darold Williamson |
USA
|
46.31 Q | 0.181 |
| 2 | 102 | LuÃs Ambrosio |
BRA
|
46.61 Q PB | 0.157 |
| 3 | 584 | Abdellatif El Ghazaoui |
MAR
|
46.92 | 0.153 |
| 4 | 308 | Brice Panel |
FRA
|
47.20 | 0.162 |
| 5 | 466 | Yhann Plummer |
JAM
|
47.55 | 0.180 |
| 6 | 455 | Jacopo Marin |
ITA
|
47.71 | 0.188 |
| 7 | 390 | DimÃtrios Grávalos |
GRE
|
47.83 | 0.147 |
| 8 | 31 | Courtney McLeod |
AUS
|
48.24 | 0.161 |