| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 1591 | Wesley VÁZQUEZ |
PUR |
1:43.96 Q |
| 2 | 2 | 1 | 1295 | Ferguson Cheruiyot ROTICH |
KEN |
1:44.20 Q |
| 3 | 3 | 1 | 1919 | Clayton MURPHY |
USA |
1:44.48 q |
| 4 | 1 | 2 | 1871 | Donavan BRAZIER |
USA |
1:44.87 Q |
| 5 | 4 | 1 | 647 | Adrián BEN |
ESP |
1:44.97 q PB |
| 6 | 2 | 2 | 395 | Marco AROP |
CAN |
1:45.07 Q |
| 7 | 5 | 1 | 828 | Elliot GILES |
GBR |
1:45.15 |
| 8 | 3 | 2 | 1288 | Emmanuel Kipkurui KORIR |
KEN |
1:45.19 |
| 9 | 6 | 1 | 1531 | Adam KSZCZOT |
POL |
1:45.22 |
| 10 | 4 | 2 | 1905 | Brannon KIDDER |
USA |
1:45.62 |
| 11 | 1 | 3 | 272 | Amel TUKA |
BIH |
1:45.63 Q |
| 12 | 5 | 2 | 1379 | Mostafa SMAILI |
MAR |
1:45.78 |
| 13 | 7 | 1 | 1765 | Abdessalem AYOUNI |
TUN |
1:45.80 |
| 14 | 2 | 3 | 1896 | Bryce HOPPEL |
USA |
1:45.95 Q |
| 15 | 6 | 2 | 1645 | Tshepo TSHITE |
RSA |
1:46.08 |
| 16 | 3 | 3 | 651 | Álvaro DE ARRIBA |
ESP |
1:46.09 |
| 17 | 7 | 2 | 104 | Yassine HETHAT |
ALG |
1:46.15 |
| 18 | 4 | 3 | 412 | Brandon MCBRIDE |
CAN |
1:46.21 |
| 19 | 5 | 3 | 845 | Kyle LANGFORD |
GBR |
1:46.41 |
| 20 | 6 | 3 | 1281 | Alex Ngeno KIPNGETICH |
KEN |
1:46.61 |
| 21 | 8 | 1 | 1593 | Abubaker Haydar ABDALLA |
QAT |
1:46.87 |
| 22 | 7 | 3 | 761 | Pierre-Ambroise BOSSE |
FRA |
1:47.60 |
| 23 | 8 | 2 | 851 | Jamie WEBB |
GBR |
1:48.44 |
| 3 | 1376 | Oussama NABIL |
MAR |
DQ |