| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 1126 | Kipyegon Bett |
KEN |
1:45.02 Q |
| 2 | 2 | 3 | 892 | Mohammed Aman |
ETH |
1:45.40 Q SB |
| 3 | 1 | 2 | 760 | Brandon MCBRIDE |
CAN |
1:45.53 Q |
| 4 | 3 | 3 | 919 | Pierre-Ambroise BOSSE |
FRA |
1:45.63 q |
| 5 | 2 | 2 | 966 | Kyle LANGFORD |
GBR |
1:45.81 Q |
| 6 | 4 | 3 | 713 | Thiago ANDRÉ |
BRA |
1:45.83 q |
| 7 | 3 | 2 | 1245 | Marcin LEWANDOWSKI |
POL |
1:45.93 |
| 8 | 4 | 2 | 1138 | Emmanuel Kipkurui KORIR |
KEN |
1:46.08 |
| 9 | 5 | 3 | 1250 | Michał ROZMYS |
POL |
1:46.10 |
| 10 | 1 | 1 | 1244 | Adam KSZCZOT |
POL |
1:46.24 Q |
| 11 | 6 | 3 | 1307 | Andreas KRAMER |
SWE |
1:46.25 |
| 12 | 7 | 3 | 1379 | Donavan BRAZIER |
USA |
1:46.27 |
| 13 | 2 | 1 | 707 | Nijel AMOS |
BOT |
1:46.29 Q |
| 14 | 5 | 2 | 1447 | Drew Windle |
USA |
1:46.33 |
| 15 | 3 | 1 | 1145 | Ferguson Cheruiyot ROTICH |
KEN |
1:46.49 |
| 16 | 8 | 3 | 864 | Álvaro DE ARRIBA |
ESP |
1:46.64 |
| 17 | 4 | 1 | 1399 | Isaiah HARRIS |
USA |
1:46.66 |
| 18 | 6 | 2 | 1160 | Ebrahim ALZOFAIRI |
KUW |
1:46.68 |
| 19 | 5 | 1 | 967 | Guy LEARMONTH |
GBR |
1:46.75 |
| 20 | 6 | 1 | 957 | Elliot GILES |
GBR |
1:46.95 |
| 21 | 7 | 2 | 684 | Antoine Gakeme |
BDI |
1:47.08 |
| 22 | 7 | 1 | 1336 | Abdessalem AYOUNI |
TUN |
1:47.39 |
| 23 | 8 | 1 | 872 | Kevin LÓPEZ |
ESP |
1:47.62 |
| 2 | 1202 | Thijmen KUPERS |
NED |
DNS |