| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1563 | Felix Sánchez |
DOM
|
47.76 Q SB | 0.175 |
| 2 | 3043 | Jehue Gordon |
TTO
|
47.96 Q NR | 0.148 |
| 3 | 3212 | Kerron Clement |
USA
|
48.12 q SB | 0.251 |
| 4 | 1812 | David GREENE |
GBR
|
48.19 q | 0.181 |
| 5 | 2910 | Mamadou Kasse HANN |
SEN
|
48.80 PB | 0.172 |
| 6 | 1135 | Michaël Bultheel |
BEL
|
49.10 PB | 0.147 |
| 7 | 2741 | Eric Alejandro |
PUR
|
49.15 PB | 0.186 |
| 8 | 2528 | Kurt Couto |
MOZ
|
51.55 | 0.179 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 2743 | Javier Culson |
PUR
|
47.93 Q | 0.224 |
| 2 | 3255 | Angelo Taylor |
USA
|
47.95 Q SB | 0.165 |
| 3 | 1465 | Omar Cisneros |
CUB
|
48.23 SB | 0.239 |
| 4 | 2947 | Emir Bekric |
SRB
|
49.62 | 0.204 |
| 5 | 1155 | Kenneth Medwood |
BIZ
|
49.87 | 0.175 |
| 6 | 3140 | Stanislav Melnykov |
UKR
|
50.19 | 0.182 |
| 7 | 1065 | Tristan Thomas |
AUS
|
50.55 | 0.164 |
| 1811 | Jack Green |
GBR
|
DNF | 0.194 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 3258 | Michael Tinsley |
USA
|
48.18 Q SB | 0.179 |
| 2 | 2176 | Leford Green |
JAM
|
48.61 Q SB | 0.176 |
| 3 | 2932 | Brent LaRue |
SLO
|
49.45 | 0.172 |
| 4 | 1843 | Rhys Williams |
GBR
|
49.63 | 0.190 |
| 5 | 1039 | Brendan Cole |
AUS
|
49.65 | 0.178 |
| 6 | 2128 | José Reynaldo Bencosme De Leon |
ITA
|
50.07 | 0.205 |
| 7 | 1483 | Amaurys R. Valle |
CUB
|
50.48 | 0.162 |
| 2571 | Cristian Morton |
NGR
|
DQ | 0.231 |