| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 5 | 186 | Mariano GARCÍA |
ESP |
1:45.81 Q |
| 2 | 2 | 5 | 397 | Isaiah HARRIS |
USA |
1:46.12 Q SB |
| 3 | 1 | 2 | 400 | Bryce HOPPEL |
USA |
1:46.15 Q |
| 4 | 3 | 5 | 208 | Benjamin ROBERT |
FRA |
1:46.16 q |
| 5 | 1 | 4 | 184 | Mohamed ATTAOUI |
ESP |
1:46.20 Q |
| 6 | 2 | 4 | 368 | Andreas KRAMER |
SWE |
1:46.21 Q SB |
| 7 | 2 | 2 | 280 | Abdelati EL GUESSE |
MAR |
1:46.29 Q |
| 8 | 3 | 4 | 120 | Tibo DE SMET |
BEL |
1:46.34 q SB |
| 9 | 1 | 1 | 103 | Mohamed Ali GOUANED |
ALG |
1:46.49 Q |
| 10 | 4 | 5 | 299 | Ryan CLARKE |
NED |
1:46.69 |
| 11 | 2 | 1 | 129 | Tshepiso MASALELA |
BOT |
1:46.76 Q |
| 12 | 1 | 3 | 119 | Eliott CRESTAN |
BEL |
1:46.79 Q |
| 13 | 3 | 1 | 265 | Collins KIPRUTO |
KEN |
1:46.89 SB |
| 14 | 3 | 2 | 264 | Noah KIBET |
KEN |
1:46.90 |
| 15 | 2 | 3 | 245 | Catalin TECUCEANU |
ITA |
1:47.07 Q |
| 16 | 4 | 2 | 242 | Francesco PERNICI |
ITA |
1:47.38 PB |
| 17 | 4 | 1 | 318 | James PRESTON |
NZL |
1:47.59 NR |
| 18 | 4 | 4 | 165 | Jakub DUDYCHA |
CZE |
1:47.81 |
| 19 | 3 | 3 | 231 | Balázs VINDICS |
HUN |
1:47.83 SB |
| 20 | 5 | 1 | 326 | Mateusz BORKOWSKI |
POL |
1:48.07 |
| 21 | 5 | 2 | 307 | Edose IBADIN |
NGR |
1:48.21 SB |
| 22 | 5 | 5 | 173 | Filip ŠNEJDR |
CZE |
1:48.30 |
| 23 | 4 | 3 | 345 | John RIVERA |
PUR |
1:48.44 |
| 24 | 5 | 3 | 321 | Husain Mohsin AL-FARSI |
OMA |
1:48.47 NR |
| 25 | 5 | 4 | 420 | Efrem MEKONNEN |
ETH |
1:49.71 |
| 26 | 6 | 3 | 135 | Eduardo RIBEIRO |
BRA |
1:49.74 PB |
| 27 | 6 | 4 | 159 | Marino BLOUDEK |
CRO |
1:49.97 |