| POS | Rank | Heat | BIB | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|---|
| 1 | 1 | 3 | 586 | Kipyegon Bett |
KEN |
1:46.37 Q |
| 2 | 1 | 1 | 643 | Mostafa SMAILI |
MAR |
1:46.51 Q |
| 3 | 2 | 1 | 833 | Riadh CHENINI |
TUN |
1:47.11 Q NU20R |
| 4 | 3 | 1 | 195 | Robert HEPPENSTALL |
CAN |
1:47.13 q |
| 5 | 2 | 3 | 653 | Jesus Tonatiu LOPEZ |
MEX |
1:47.25 Q |
| 6 | 4 | 1 | 879 | Brian Bell |
USA |
1:47.49 q |
| 7 | 3 | 3 | 760 | George Kusche |
RSA |
1:47.53 |
| 8 | 4 | 3 | 325 | Teddese LEMI |
ETH |
1:47.53 PB |
| 9 | 5 | 1 | 801 | Andreas KRAMER |
SWE |
1:47.65 PB |
| 10 | 6 | 1 | 397 | Dennis BIEDERBICK |
GER |
1:47.70 PB |
| 11 | 7 | 1 | 692 | James PRESTON |
NZL |
1:48.06 NU20R |
| 12 | 1 | 2 | 598 | Willy Kiplimo Tarbei |
KEN |
1:48.27 Q |
| 13 | 2 | 2 | 172 | Gorata Gabankitse |
BOT |
1:48.31 Q PB |
| 14 | 3 | 2 | 120 | Joseph DENG |
AUS |
1:48.49 |
| 15 | 4 | 2 | 886 | Vincent Crisp |
USA |
1:48.63 |
| 16 | 5 | 2 | 286 | Ignacio FONTES |
ESP |
1:48.88 |
| 17 | 5 | 3 | 118 | Lachlan Barber |
AUS |
1:48.91 |
| 18 | 6 | 2 | 744 | Ryan SÁNCHEZ |
PUR |
1:49.43 |
| 19 | 6 | 3 | 635 | Benediktas Mickus |
LTU |
1:49.44 |
| 20 | 7 | 3 | 380 | Daniel ROWDEN |
GBR |
1:49.58 |
| 21 | 7 | 2 | 418 | Pascal Kleyer |
GER |
1:49.84 |
| 22 | 8 | 1 | 326 | Bacha MORKA |
ETH |
1:51.27 |
| 23 | 8 | 2 | 198 | Michael Petersen |
CAN |
1:51.76 |
| 24 | 8 | 3 | 644 | Ayoub Sniba |
MAR |
1:53.86 |