| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 468 | Colby Jennings |
TKS
|
47.36 Q PB | 0.224 |
| 2 | 226 | Melkamu Assefa |
ETH
|
47.43 Q | 0.214 |
| 3 | 342 | Kelvin Sane TAUTA |
KEN
|
47.55 | 0.370 |
| 4 | 282 | Elvin Josué Canales |
HON
|
48.21 | 0.243 |
| 5 | 442 | Thiruben S/O Thana Rajan |
SGP
|
48.40 | 0.171 |
| 6 | 154 | Musa ISAH |
BRN
|
48.43 | 0.187 |
| 7 | 179 | Bo Xu |
CHN
|
48.90 | 0.226 |
| 8 | 146 | Bernard Olesitse |
BOT
|
50.54 | 0.161 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 311 | Anthony COX |
JAM
|
46.86 Q | 0.266 |
| 2 | 388 | Ivan Danny GELDENHUYS |
NAM
|
47.24 Q PB | 0.181 |
| 3 | 277 | Daniel WILLIAMS |
GUY
|
47.46 q | 0.186 |
| 4 | 340 | David Sanayek KAPIRANTE |
KEN
|
47.66 | 0.199 |
| 5 | 133 | Mohammad Jahir RAYHAN |
BAN
|
48.22 | 0.198 |
| 6 | 514 | José Álvarez |
VEN
|
48.79 | 0.160 |
| 7 | 161 | Hantao Deng |
CHN
|
49.12 | 0.185 |
| 8 | 130 | Tyrell Simms |
BAH
|
49.38 | 0.167 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 148 | Bruno Silva |
BRA
|
46.87 Q PB | 0.215 |
| 2 | 319 | Antonio WATSON |
JAM
|
47.05 Q PB | 0.000 |
| 3 | 448 | Gregor GRAHOVAC |
SLO
|
47.34 q PB | 0.183 |
| 4 | 500 | Yaroslav Demchenko |
UKR
|
47.96 PB | 0.178 |
| 5 | 355 | Reuben Nichols |
LCA
|
48.01 PB | 0.215 |
| 6 | 129 | Correy Sherrod |
BAH
|
48.56 | 0.211 |
| 7 | 457 | Thiran Ravishka |
SRI
|
48.89 | 0.188 |
| 398 | Antonio Grant |
PAN
|
DQ | 0.203 |