| POS | Rank | Heat | ATHLETE | COUNTRY | RESULTS |
|---|---|---|---|---|---|
| 1 | 1 | 1 | David Rudisha |
KEN |
1:41.01 WR |
| 2 | 2 | 1 | Boaz Kiplagat Lalang |
KEN |
1:42.95 |
| 3 | 3 | 1 | Nick Symmonds |
USA |
1:43.76 |
| 4 | 4 | 1 | Michael Rimmer |
GBR |
1:43.89 |
| 5 | 5 | 1 | Marcin Lewandowski |
POL |
1:44.10 |
| 6 | 6 | 1 | Arturo Casado |
ESP |
1:44.74 |
| 7 | 1 | 2 | Job Koech Kinyor |
KEN |
1:46.40 |
| 8 | 2 | 2 | Antonio Manuel Reina |
ESP |
1:46.56 |
| 9 | 3 | 2 | Prince Mumba |
ZAM |
1:46.64 |
| 10 | 4 | 2 | Andrew Osagie |
GBR |
1:46.81 |
| 11 | 5 | 2 | Lachlan Renshaw |
AUS |
1:47.18 |
| 12 | 6 | 2 | Luis Alberto Marco |
ESP |
1:47.69 |
| 13 | 7 | 2 | Pablo Solares |
MEX |
1:47.79 |
| 14 | 8 | 2 | Christian Obrist |
ITA |
1:49.59 |
| 15 | 7 | 1 | Jackson Mumbwa Kivuva |
KEN |
2:23.39 |
| 2 | Eric Milazar |
MRI |
DNF | ||
| 1 | Sammy Tangui |
KEN |
DNF |