| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1903 | Fred KERLEY |
USA
|
44.25 Q | 0.152 |
| 2 | 1288 | Emmanuel Kipkurui KORIR |
KEN
|
44.37 Q SB | 0.153 |
| 3 | 1096 | Davide RE |
ITA
|
44.85 | 0.186 |
| 4 | 244 | Jonathan SACOOR |
BEL
|
45.03 PB | 0.152 |
| 5 | 1637 | Thapelo PHORA |
RSA
|
45.24 | 0.182 |
| 6 | 360 | Abbas Abubakar ABBAS |
BRN
|
45.26 | 0.194 |
| 7 | 1931 | Nathan STROTHER |
USA
|
45.34 | 0.155 |
| 8 | 1336 | Mazen Mawtan AL YASEN |
KSA
|
46.11 | 0.168 |
| POS | BIB | ATHLETE | COUNTRY | MARK | ms* | Reaction Time |
|---|---|---|---|---|---|---|
| 1 | 222 | Steven GARDINER |
BAH
|
44.13 Q SB | 0.154 | |
| 2 | 1001 | Kirani JAMES |
GRN
|
44.23 Q SB | 0.119 | |
| 3 | 1158 | Demish GAYE |
JAM
|
44.66 q SB | 0.188 | |
| 4 | 1921 | Vernon NORWOOD |
USA
|
45.00 | .992 | 0.181 |
| 5 | 305 | Leungo SCOTCH |
BOT
|
45.00 PB | .996 | 0.167 |
| 6 | 535 | Jhon Alejandro PERLAZA |
COL
|
45.17 | 0.160 | |
| 7 | 414 | Philip Osei |
CAN
|
45.44 | 0.172 | |
| 8 | 154 | Steven SOLOMON |
AUS
|
45.54 SB | 0.169 |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second
| POS | BIB | ATHLETE | COUNTRY | MARK | Reaction Time |
|---|---|---|---|---|---|
| 1 | 1749 | Machel CEDENIO |
TTO
|
44.41 Q SB | 0.239 |
| 2 | 536 | Anthony José ZAMBRANO |
COL
|
44.55 Q NR | 0.183 |
| 3 | 1154 | Akeem BLOOMFIELD |
JAM
|
44.77 q | 0.207 |
| 4 | 1217 | Julian Jrummi WALSH |
JPN
|
45.13 PB | 0.132 |
| 5 | 830 | Rabah YOUSIF |
GBR
|
45.15 SB | 0.160 |
| 6 | 1286 | Alphas Leken KISHOYIAN |
KEN
|
45.55 | 0.189 |
| 7 | 1920 | Michael NORMAN |
USA
|
45.94 | 0.176 |
| 1338 | Yousef KARAM |
KUW
|
DNF | 0.156 |