| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 1001 | Kirani JAMES |
GRN |
44.94 Q | |
| 2 | 1 | 4 | 1920 | Michael NORMAN |
USA |
45.00 Q | |
| 3 | 2 | 4 | 1158 | Demish GAYE |
JAM |
45.02 Q | |
| 4 | 1 | 6 | 1288 | Emmanuel Kipkurui KORIR |
KEN |
45.08 Q | .071 |
| 5 | 1 | 3 | 1096 | Davide RE |
ITA |
45.08 Q | .077 |
| 6 | 3 | 4 | 305 | Leungo SCOTCH |
BOT |
45.10 Q PB | |
| 7 | 2 | 2 | 1217 | Julian Jrummi WALSH |
JPN |
45.14 Q PB | |
| 8 | 2 | 3 | 1903 | Fred KERLEY |
USA |
45.19 Q | |
| 9 | 1 | 1 | 1749 | Machel CEDENIO |
TTO |
45.26 Q | |
| 10 | 2 | 6 | 244 | Jonathan SACOOR |
BEL |
45.32 Q | |
| 11 | 2 | 1 | 1154 | Akeem BLOOMFIELD |
JAM |
45.34 Q | |
| 12 | 3 | 6 | 830 | Rabah YOUSIF |
GBR |
45.40 Q | |
| 13 | 3 | 1 | 1637 | Thapelo PHORA |
RSA |
45.45 Q | |
| 14 | 3 | 3 | 360 | Abbas Abubakar ABBAS |
BRN |
45.47 Q | |
| 15 | 3 | 2 | 1921 | Vernon NORWOOD |
USA |
45.59 Q | |
| 16 | 4 | 6 | 535 | Jhon Alejandro PERLAZA |
COL |
45.62 q | |
| 17 | 4 | 1 | 1286 | Alphas Leken KISHOYIAN |
KEN |
45.65 q | |
| 18 | 1 | 5 | 222 | Steven GARDINER |
BAH |
45.68 Q | |
| 19 | 4 | 3 | 1336 | Mazen Mawtan AL YASEN |
KSA |
45.70 q | |
| 20 | 5 | 6 | 1931 | Nathan STROTHER |
USA |
45.71 q | |
| 21 | 4 | 4 | 1338 | Yousef KARAM |
KUW |
45.74 q | |
| 22 | 4 | 2 | 154 | Steven SOLOMON |
AUS |
45.82 q | |
| 23 | 5 | 2 | 1631 | Derrick MOKALENG |
RSA |
45.87 | .863 |
| 24 | 2 | 5 | 414 | Philip Osei |
CAN |
45.87 Q | .864 |
| 25 | 5 | 4 | 223 | Alonzo RUSSELL |
BAH |
45.91 | |
| 26 | 3 | 5 | 536 | Anthony José ZAMBRANO |
COL |
45.93 Q | |
| 27 | 5 | 1 | 357 | Lucas CARVALHO |
BRA |
46.01 | |
| 28 | 4 | 5 | 310 | Ditiro NZAMANI |
BOT |
46.19 | |
| 29 | 5 | 5 | 1161 | Rusheen MCDONALD |
JAM |
46.21 | |
| 30 | 5 | 3 | 1265 | Mikhail LITVIN |
KAZ |
46.28 | |
| 31 | 6 | 6 | 1073 | Taha Hussein YASEEN |
IRQ |
46.58 | |
| 32 | 6 | 4 | 1368 | Todisoa Franck RABEARISON |
MAD |
46.80 NR | |
| 33 | 6 | 2 | 2085 | Luka JANEŽIČ |
SLO |
46.84 | |
| 34 | 6 | 5 | 2038 | Brandon Parris |
VIN |
47.39 | |
| 35 | 7 | 6 | 985 | Jessy FRANCO |
GIB |
47.41 NR | |
| 36 | 6 | 3 | 450 | Bachir MAHAMAT |
CHA |
47.65 | |
| 37 | 6 | 1 | 1598 | Abdalelah Haroun |
QAT |
47.76 SB | |
| 38 | 7 | 3 | 1409 | Jovan STOJOSKI |
MKD |
47.92 | |
| 39 | 7 | 4 | 1477 | Moussa Zaroumeye |
NIG |
48.13 | |
| 40 | 7 | 5 | 229 | Mohammad Jahir RAYHAN |
BAN |
48.48 | |
| 41 | 7 | 2 | 2028 | Tikie Terry Mael |
VAN |
48.52 PB | |
| 1 | 832 | Matthew HUDSON-SMITH |
GBR |
DNF |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second