| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS | ms* |
|---|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 987 | Emmanuel WANYONYI |
KEN |
1:43.32 Q | |
| 2 | 2 | 3 | 1315 | Bryce HOPPEL |
USA |
1:43.41 Q | |
| 3 | 3 | 3 | 691 | Max BURGIN |
GBR |
1:43.50 q PB | |
| 4 | 4 | 3 | 582 | Mohamed ATTAOUI |
ESP |
1:43.69 q | |
| 5 | 5 | 3 | 378 | Eliott CRESTAN |
BEL |
1:43.72 | |
| 6 | 6 | 3 | 327 | Peyton CRAIG |
AUS |
1:44.11 PB | |
| 7 | 7 | 3 | 406 | Kethobogile HAINGURA |
BOT |
1:44.95 | |
| 8 | 1 | 2 | 449 | Marco AROP |
CAN |
1:45.05 Q | |
| 9 | 1 | 1 | 307 | Djamel SEDJATI |
ALG |
1:45.08 Q | |
| 10 | 2 | 2 | 675 | Gabriel TUAL |
FRA |
1:45.16 Q | |
| 11 | 3 | 2 | 970 | Wyclife KINYAMAL |
KEN |
1:45.29 | |
| 12 | 2 | 1 | 408 | Tshepiso MASALELA |
BOT |
1:45.33 Q | |
| 13 | 4 | 2 | 1176 | Edmund DU PLESSIS |
RSA |
1:45.34 | |
| 14 | 3 | 1 | 874 | Catalin TECUCEANU |
ITA |
1:45.38 | |
| 15 | 5 | 2 | 700 | Elliot GILES |
GBR |
1:45.46 | |
| 16 | 4 | 1 | 717 | Ben PATTISON |
GBR |
1:45.57 | |
| 17 | 5 | 1 | 1335 | Brandon MILLER |
USA |
1:45.79 | |
| 18 | 6 | 1 | 825 | Mark ENGLISH |
IRL |
1:45.97 | |
| 19 | 8 | 3 | 842 | Simone BARONTINI |
ITA |
1:46.17 | |
| 20 | 6 | 2 | 1320 | Hobbs KESSLER |
USA |
1:46.20 | |
| 21 | 7 | 2 | 1088 | Tobias GRØNSTAD |
NOR |
1:46.37 | |
| 22 | 8 | 2 | 304 | Mohamed Ali GOUANED |
ALG |
1:46.52 | .515 |
| 23 | 7 | 1 | 1237 | Andreas KRAMER |
SWE |
1:46.52 | .517 |
| 24 | 8 | 1 | 1032 | Jesus Tonatiu LOPEZ |
MEX |
1:50.38 |
ms - Milliseconds - shown when two or more competitors finish with the same time down to hundredths of a second