| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 791 | Damion Barry |
TTO
|
46.63 Q | 0.181 |
| 2 | 638 | Rafal Wieruszewski |
POL
|
46.66 Q | 0.260 |
| 3 | 455 | Shinji Ishikawa |
JPN
|
46.99 Q | 0.188 |
| 4 | 852 | Jonathan Palma |
VEN
|
47.10 Q | 0.268 |
| 5 | 708 | Tshepo Thobelangope |
RSA
|
47.18 | 0.152 |
| 6 | 404 | Gordon Kennedy |
IRL
|
47.37 | 0.224 |
| 7 | 327 | Bastian Swillims |
GER
|
47.43 | 0.202 |
| 8 | 805 | Volodymyr Demchenko |
UKR
|
47.54 | 0.218 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 501 | Hamdan Odha Al-Bishi |
KSA
|
45.69 Q | 0.163 |
| 2 | 436 | Brandon Simpson |
JAM
|
45.96 Q PB | 0.169 |
| 3 | 847 | William Hernández |
VEN
|
46.77 Q | 0.211 |
| 4 | 706 | Richard Sharp |
RSA
|
46.83 Q | 0.140 |
| 5 | 795 | Sherridan Kirk |
TTO
|
47.08 | 0.234 |
| 6 | 456 | Shinji Itabashi |
JPN
|
47.67 | 0.176 |
| 7 | 534 | Bruno Ediarimalala |
MAD
|
47.91 NJR | 0.199 |
| 8 | 829 | James Graham |
USA
|
49.64 | 0.235 |