| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Iwan Thomas |
GBR
|
44.98 Q | |
| 2 | Robert Mackowiak |
POL
|
45.26 Q NR | |
| 3 | Roxbert Martin |
JAM
|
45.37 q | |
| 4 | Štefan Balošák |
SVK
|
45.48 | |
| 5 | Mathias Rusterholz |
SUI
|
45.89 | |
| 6 | Alejandro Manuel Cárdenas |
MEX
|
46.63 | |
| 7 | Ju-il Shon |
KOR
|
47.36 | |
| Antonio Pettigrew |
USA
|
DQ |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Jamie Baulch |
GBR
|
45.06 Q | |
| 2 | Davis Kamoga |
UGA
|
45.25 Q | |
| 3 | Ibrahima Wade |
SEN
|
45.38 Q | |
| 4 | Michael Johnson |
USA
|
45.39 q | |
| 5 | Eswort Coombs |
VIN
|
45.47 | |
| 6 | Jean-Louis Rapnouil |
FRA
|
46.14 | |
| 7 | Tawanda Chiwira |
ZIM
|
46.22 | |
| 8 | Benjamin Youla |
CGO
|
46.29 NR |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Clement Chukwu |
NGR
|
45.06 Q | |
| 2 | Tyree Washington |
USA
|
45.09 Q | |
| 3 | Davian Clarke |
JAM
|
45.27 Q | |
| 4 | Hachim Ndiaye |
SEN
|
45.44 PB | |
| 5 | Sugath Thilakaratne |
SRI
|
46.11 | |
| 6 | Kennedy Ochieng |
KEN
|
46.28 | |
| 7 | Marco Vaccari |
ITA
|
46.32 | |
| Sanderlei Parrela |
BRA
|
DNS |
| POS | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|
| 1 | Jerome Young |
USA
|
44.87 Q | |
| 2 | Mark Richardson |
GBR
|
45.05 Q | |
| 3 | Michael McDonald |
JAM
|
45.16 Q | |
| 4 | Sunday Bada |
NGR
|
45.37 q SB | |
| 5 | Tomasz Czubak |
POL
|
45.41 q PB | |
| 6 | Ibrahim Ismail Muftah |
QAT
|
46.12 | |
| 7 | Samir-Adel Louahla |
ALG
|
46.23 | |
| 8 | Arnaud Malherbe |
RSA
|
46.73 |