| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 175 | Alison DOS SANTOS |
BRA
|
50.90 Q | 0.197 |
| 2 | 540 | Bassem HEMEIDA |
QAT
|
51.14 Q | 0.191 |
| 3 | 655 | Cory Poole |
USA
|
51.27 | 0.216 |
| 4 | 583 | Carl BENGTSTRÖM |
SWE
|
51.55 | 0.204 |
| 5 | 460 | Moitalel MPOKE |
KEN
|
51.94 | 0.222 |
| 6 | 336 | Ierotheos Dritsas |
GRE
|
52.38 | 0.164 |
| 7 | 349 | Boaz Madeus |
HAI
|
54.45 | 0.197 |
| 488 | Ismail Manyani |
MAR
|
DQ |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 427 | Malik JAMES-KING |
JAM
|
50.34 Q | 0.176 |
| 2 | 379 | Mahdi PIRJAHAN |
IRI
|
50.98 Q NU20R | 0.189 |
| 3 | 306 | Alex Knibbs |
GBR
|
50.99 | 0.282 |
| 4 | 144 | Rasheeme GRIFFITH |
BAR
|
51.02 SB | 0.205 |
| 5 | 439 | Yusuke Shirao |
JPN
|
51.21 | 0.178 |
| 6 | 554 | Lourens Steenekamp |
RSA
|
51.26 | 0.169 |
| 7 | 574 | Julien BONVIN |
SUI
|
51.83 | 0.186 |
| 244 | Aleix PORRAS |
ESP
|
DNS |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 555 | Sokwakhana ZAZINI |
RSA
|
49.43 Q | 0.171 |
| 2 | 294 | Alastair CHALMERS |
GBR
|
50.11 Q NU20R | 0.174 |
| 3 | 428 | Leonardo LEDGISTER |
JAM
|
50.13 q PB | 0.169 |
| 4 | 400 | Alessandro SIBILIO |
ITA
|
50.73 q SB | 0.155 |
| 5 | 647 | Quivell JORDAN-BACOT |
USA
|
50.86 | 0.172 |
| 6 | 496 | Ramsey ANGELA |
NED
|
51.99 | 0.180 |
| 7 | 229 | Jesús David DELGADO |
ESP
|
52.18 | 0.187 |
| 8 | 143 | Nathan Fergusson |
BAR
|
54.58 | 0.162 |