| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 147 | Jonathan SACOOR |
BEL
|
45.72 Q NU20R | 0.146 |
| 2 | 419 | Chantz Sawyers |
JAM
|
46.19 Q | 0.165 |
| 3 | 207 | Matěj KRSEK |
CZE
|
46.59 NU20R | 0.137 |
| 4 | 174 | Bruno Silva |
BRA
|
46.74 | 0.177 |
| 5 | 397 | Klaudio Gjetja |
ITA
|
47.10 | 0.185 |
| 6 | 578 | Ricky PETRUCCIANI |
SUI
|
47.39 | 0.187 |
| 7 | 115 | Christian Davis |
AUS
|
47.86 | 0.182 |
| 8 | 511 | Antonio Grant |
PAN
|
48.23 | 0.205 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 402 | Edoardo SCOTTI |
ITA
|
45.84 Q NU20R | 0.184 |
| 2 | 145 | Jonathan JONES |
BAR
|
46.22 Q | 0.160 |
| 3 | 186 | Myles MISENER-DALEY |
CAN
|
46.53 q | 0.164 |
| 4 | 662 | Umajesty Williams |
USA
|
46.72 | 0.203 |
| 5 | 233 | Alfredo Jimenez |
ESP
|
46.93 PB | 0.195 |
| 6 | 669 | Kennedy LUCHEMBE |
ZAM
|
47.35 | 0.178 |
| 7 | 551 | Gabriel Louw |
RSA
|
47.63 | 0.164 |
| 8 | 564 | Boško KIJANOVIĆ |
SRB
|
48.15 | 0.169 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 417 | Christopher TAYLOR |
JAM
|
46.18 Q | 0.301 |
| 2 | 181 | Khamal Stewart-Baynes |
CAN
|
46.38 Q | 0.185 |
| 3 | 642 | Howard Fields |
USA
|
46.53 q | 0.178 |
| 4 | 519 | Szymon Kreft |
POL
|
46.74 | 0.197 |
| 5 | 565 | Aruna DHARSHANA |
SRI
|
46.75 | 0.236 |
| 6 | 177 | Musa ISAH |
BRN
|
46.94 | 0.169 |
| 7 | 316 | Jean Paul BREDAU |
GER
|
47.70 | 0.214 |
| 468 | Ilhwan Mo |
KOR
|
DQ | 0.158 |