| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2017 | 
|---|---|---|---|---|---|
| 2 | 967 | Guy LEARMONTH |  GBR | 1:45.77 | 1:45.77 | 
| 3 | 1336 | Abdessalem AYOUNI |  TUN | 1:45.63 | 1:45.63 | 
| 4 | 1145 | Ferguson Cheruiyot ROTICH |  KEN | 1:42.84 | 1:44.37 | 
| 5 | 1399 | Isaiah HARRIS |  USA | 1:44.53 | 1:44.53 | 
| 6 | 707 | Nijel AMOS |  BOT | 1:41.73 | 1:43.18 | 
| 7 | 957 | Elliot GILES |  GBR | 1:44.99 | 1:44.99 | 
| 8 | 1244 | Adam KSZCZOT |  POL | 1:43.30 | 1:45.21 | 
| 9 | 872 | Kevin LÓPEZ |  ESP | 1:43.74 | 1:45.02 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2017 | 
|---|---|---|---|---|---|
| 2 | 966 | Kyle LANGFORD |  GBR | 1:45.45 | 1:45.45 | 
| 3 | 1160 | Ebrahim ALZOFAIRI |  KUW | 1:46.29 | 1:46.29 | 
| 4 | 684 | Antoine Gakeme |  BDI | 1:44.09 | 1:44.44 | 
| 5 | 1138 | Emmanuel Kipkurui KORIR |  KEN | 1:43.10 | 1:43.10 | 
| 6 | 760 | Brandon MCBRIDE |  CAN | 1:43.95 | 1:44.41 | 
| 7 | 1447 | Drew Windle |  USA | 1:44.63 | 1:44.63 | 
| 8 | 1202 | Thijmen KUPERS |  NED | 1:44.99 | 1:44.99 | 
| 9 | 1245 | Marcin LEWANDOWSKI |  POL | 1:43.72 | 1:45.44 | 
| Order / Lane | Bib | ATHLETE | COUNTRY | PB | SB 2017 | 
|---|---|---|---|---|---|
| 2 | 1250 | Michał ROZMYS |  POL | 1:45.70 | 1:45.70 | 
| 3 | 892 | Mohammed Aman |  ETH | 1:42.37 | 1:45.68 | 
| 4 | 1379 | Donavan BRAZIER |  USA | 1:43.55 | 1:43.95 | 
| 5 | 713 | Thiago ANDRÉ |  BRA | 1:44.81 | 1:44.81 | 
| 6 | 1126 | Kipyegon Bett |  KEN | 1:43.76 | 1:44.04 | 
| 7 | 919 | Pierre-Ambroise BOSSE |  FRA | 1:42.53 | 1:44.72 | 
| 8 | 1307 | Andreas KRAMER |  SWE | 1:45.13 | 1:45.13 | 
| 9 | 864 | Álvaro DE ARRIBA |  ESP | 1:45.06 | 1:45.06 |