| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 2235 | Kirani JAMES |
GRN
|
43.88 Q SB | 0.160 |
| 2 | 1551 | Anthony José ZAMBRANO |
COL
|
43.93 Q AR | 0.175 |
| 3 | 3015 | Liemarvin BONEVACIA |
NED
|
44.62 q NR | 0.160 |
| 4 | 3633 | Deon LENDORE |
TTO
|
44.93 | 0.193 |
| 5 | 2437 | Davide RE |
ITA
|
44.94 SB | 0.157 |
| 6 | 3522 | Ricky PETRUCCIANI |
SUI
|
45.26 | 0.140 |
| 7 | 3468 | Luka JANEŽIČ |
SLO
|
45.36 SB | 0.152 |
| 8 | 1201 | Jonathan SACOOR |
BEL
|
45.88 | 0.136 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 3913 | Michael CHERRY |
USA
|
44.44 Q | 0.162 |
| 2 | 2634 | Christopher TAYLOR |
JAM
|
44.92 Q SB | 0.164 |
| 3 | 1097 | Steven SOLOMON |
AUS
|
45.15 | 0.168 |
| 4 | 2827 | Mazen Mawtan AL YASEN |
KSA
|
45.37 | 0.154 |
| 5 | 1274 | Leungo SCOTCH |
BOT
|
45.56 | 0.178 |
| 6 | 3625 | Machel CEDENIO |
TTO
|
45.86 | 0.192 |
| 7 | 1137 | Alonzo RUSSELL |
BAH
|
46.04 | 0.169 |
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1136 | Steven GARDINER |
BAH
|
44.14 Q SB | 0.152 |
| 2 | 3958 | Michael NORMAN |
USA
|
44.52 Q | 0.156 |
| 3 | 1270 | Isaac MAKWALA |
BOT
|
44.59 q | 0.197 |
| 4 | 2583 | Demish GAYE |
JAM
|
45.09 SB | 0.155 |
| 5 | 3438 | Wayde VAN NIEKERK |
RSA
|
45.14 | 0.381 |
| 6 | 3019 | Jochem DOBBER |
NED
|
45.48 | 0.191 |
| 7 | 3635 | Dwight ST. HILLAIRE |
TTO
|
45.58 | 0.153 |
| 8 | 1154 | Jonathan JONES |
BAR
|
45.61 | 0.159 |