| 男子800m | ||||
| 2017年8月8日 21:35 | ||||
| 順位 | 競技者 | 国名 | 記録 | 記事 |
| 1 | Pierre-Ambroise BOSSE |  FRA | 1:44.67 | SB |
| 2 | Adam KSZCZOT |  POL | 1:44.95 | SB |
| 3 | Kipyegon BETT |  KEN | 1:45.21 | |
| 4 | Kyle LANGFORD |  GBR | 1:45.25 | PB |
| 5 | Nijel AMOS |  BOT | 1:45.83 | |
| 6 | Mohammed AMAN |  ETH | 1:46.06 | |
| 7 | Thiago ANDRÈ |  BRA | 1:46.30 | |
| 8 | Brandon MCBRIDE |  CAN | 1:47.09 | |