| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 2 | 1102 | Karsten WARHOLM |
NOR |
47.57 Q | |
| 2 | 2 | 2 | 646 | Clement DUCOS |
FRA |
47.69 Q PB | |
| 3 | 1 | 4 | 893 | Roshawn CLARKE |
JAM |
48.17 Q | |
| 4 | 1 | 5 | 902 | Malik JAMES-KING |
JAM |
48.21 Q | |
| 5 | 3 | 2 | 1169 | Abderrahman SAMBA |
QAT |
48.35 Q | |
| 6 | 2 | 4 | 1078 | Ezekiel NATHANIEL |
NGR |
48.38 Q | |
| 7 | 3 | 4 | 654 | Wilfried HAPPIO |
FRA |
48.42 Q | |
| 8 | 4 | 4 | 868 | Alessandro SIBILIO |
ITA |
48.43 q | |
| 9 | 5 | 4 | 981 | Wiseman Were MUKHOBE |
KEN |
48.58 q | |
| 10 | 1 | 3 | 609 | Rasmus MÄGI |
EST |
48.62 Q | |
| 11 | 2 | 3 | 1288 | CJ ALLEN |
USA |
48.64 Q | .635 |
| 12 | 6 | 4 | 1062 | Nick SMIDT |
NED |
48.64 q SB | .638 |
| 13 | 4 | 2 | 560 | Yeral NUÑEZ |
DOM |
48.67 Re | |
| 14 | 3 | 3 | 423 | Alison DOS SANTOS |
BRA |
48.75 Q | |
| 15 | 7 | 4 | 524 | Gerald DRUMMOND |
CRC |
48.80 Re | |
| 16 | 1 | 1 | 1293 | Rai BENJAMIN |
USA |
48.82 Q | |
| 17 | 2 | 5 | 430 | Matheus LIMA |
BRA |
48.90 Q | |
| 18 | 3 | 5 | 694 | Alastair CHALMERS |
GBR |
48.98 Q | |
| 19 | 4 | 5 | 731 | Joshua ABUAKU |
GER |
49.00 Re | |
| 20 | 2 | 1 | 901 | Jaheel HYDE |
JAM |
49.08 Q | |
| 21 | 3 | 1 | 884 | Kyron MCMASTER |
IVB |
49.24 Q | |
| 22 | 4 | 1 | 1231 | Carl BENGTSTRÖM |
SWE |
49.34 Re | |
| 23 | 4 | 3 | 732 | Emil AGYEKUM |
GER |
49.38 Re | .371 |
| 23 | 5 | 2 | 1291 | Trevor BASSITT |
USA |
49.38 Re | .371 |
| 25 | 6 | 2 | 546 | VÃt MÜLLER |
CZE |
49.44 Re | |
| 26 | 5 | 5 | 1262 | Berke AKÇAM |
TUR |
49.48 Re | |
| 27 | 5 | 3 | 412 | Victor NTWENG |
BOT |
49.59 Re | |
| 28 | 7 | 2 | 1234 | Oskar EDLUND |
SWE |
49.74 Re | |
| 29 | 5 | 1 | 1167 | Bassem HEMEIDA |
QAT |
49.82 Re SB | .815 |
| 30 | 6 | 3 | 1217 | Julien BONVIN |
SUI |
49.82 Re | .818 |
| 31 | 8 | 2 | 498 | Zhiyu XIE |
CHN |
49.90 Re | |
| 32 | 8 | 4 | 763 | Constantin PREIS |
GER |
49.99 Re | |
| 33 | 6 | 1 | 941 | Daiki OGAWA |
JPN |
50.21 Re | |
| 34 | 7 | 1 | 1209 | Matic Ian GUÄŒEK |
SLO |
50.30 Re | |
| 35 | 7 | 3 | 950 | Kaito TSUTSUE |
JPN |
50.50 Re | |
| 36 | 8 | 3 | 1264 | Yasmani COPELLO |
TUR |
50.72 Re | |
| 37 | 6 | 5 | 949 | Ken TOYODA |
JPN |
53.62 Re | |
| 5 | 1164 | Ismail Doudai ABAKAR |
QAT |
DNF | |||
| 5 | 1250 | Ming-Yang PENG |
TPE |
DNF |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second