| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 752 | David Klech |
USA
|
50.96 Q WYL | 0.171 |
| 2 | 427 | Jaber Adel Assiri |
KSA
|
51.13 Q PB | 0.153 |
| 3 | 608 | Wiekus Jonck |
RSA
|
51.22 Q PB | 0.235 |
| 4 | 670 | Salih Dar |
SUD
|
51.62 Q PB | 0.165 |
| 5 | 639 | Viacheslav Sakaev |
RUS
|
51.73 PB | 0.203 |
| 6 | 398 | Robert Kigen |
KEN
|
51.89 | 0.177 |
| 7 | 697 | Ching-Chun Wang |
TPE
|
54.02 | 0.157 |
| 8 | 593 | Abdulraoof Mohammed Mohammed |
QAT
|
56.15 | 0.164 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 428 | Mohammed Yahya Daak |
KSA
|
51.66 Q | 0.186 |
| 2 | 365 | Romel Lewis |
JAM
|
51.92 Q PB | 0.181 |
| 3 | 748 | Timothy Grier |
USA
|
52.13 Q PB | 0.247 |
| 4 | 583 | Victor Valentin |
PUR
|
52.78 | 0.217 |
| 5 | 204 | Santiago Albero |
ESP
|
53.07 PB | 0.154 |
| 6 | 282 | Christoph Kaesmacher |
GER
|
53.17 | 0.167 |
| 7 | 602 | Pieter Botha |
RSA
|
53.25 | 0.181 |
| 672 | Abdulagadir Idriss |
SUD
|
DQ | 0.221 |