| Final: Start time: 20:53 +8 UTC, Temperature 24° C, Humidity 78 % _ |   
| Ranking Final | time |   | L | bib |  | 1. David Lekuta Rudisha |  KEN | 1:45.84 |   | 5 | 702 |  | 2. Adam Kszczot |  POL | 1:46.08 |   | 6 | 797 |  | 3. Amel Tuka |  BIH | 1:46.30 |   | 4 | 234 |  | 4. Ferguson Cheruiyot Rotich |  KEN | 1:46.35 |   | 7 | 701 |  | 5. Pierre-Ambroise Bosse |  FRA | 1:46.63 |   | 8 | 490 |  | 6. Musaeb Abdulrahman Balla |  QAT | 1:47.01 |   | 9 | 825 |  | 7. Nader Belhanbel |  MAR | 1:47.09 |   | 3 | 730 |  | 8. Alfred Kipketer |  KEN | 1:47.66 |   | 2 | 685 |   
 | 
|  Men 800m History |  | Qualifiyng standard: 1:46.00 |  | Event Target Number: 48 Athletes. |   
|  Intermediate time: |  | 400m David Lekuta Rudisha (KEN) 54.17s |   
 |  
|
 |   |  | First 2 and Best 2 advanced to Final. |   
 Semi 1: Start time: 20:16, Temperature 21° C, Humidity 83 %%   
 
| Ranking Semi 1 | time |   | L | bib |  | 1. Adam Kszczot |  POL | 1:44.97 |   | 6 | 797 |  | 2. Alfred Kipketer |  KEN | 1:44.99 |   | 5 | 685 |  | 3. Pierre-Ambroise Bosse |  FRA | 1:45.02 |   | 7 | 490 |  | 4. Kevin López |  ESP | 1:45.84 |   | 8 | 438 |  | 5. Amine El Manaoui |  MAR | 1:46.09 |   | 3 | 734 |  | 6. Clayton Murphy |  USA | 1:46.28 |   | 2 | 1048 |  | 7. Thijmen Kupers |  NED | 1:47.74 |   | 9 | 762 |  | -. Mohammed Aman |  ETH | DQ R163.2 | 4 | 458 |   
 | 
| Rule R163.2: Jostling / Obstruction. |   
|  Intermediate time: |  | 400m Adam Kszczot (POL) 52.35s |   
 | 
 
 Semi 2: Start time: 20:23, Temperature 21° C, Humidity 88 %%   
 
| Ranking Semi 2 | time |   | L | bib |  | 1. David Lekuta Rudisha |  KEN | 1:47.70 |   | 5 | 702 |  | 2. Musaeb Abdulrahman Balla |  QAT | 1:47.93 |   | 7 | 825 |  | 3. Nijel Amos |  BOT | 1:47.96 |   | 4 | 241 |  | 4. Konstantin Tolokonnikov |  RUS | 1:48.32 |   | 3 | 887 |  | 5. Abraham Kipchirchir Rotich |  BRN | 1:48.61 |   | 8 | 290 |  | 6. Ali Al-Deraan |  KSA | 1:48.71 |   | 2 | 713 |  | 7. Antoine Gakeme |  BDI | 1:48.86 |   | 6 | 212 |  | -. Jeffrey Riseley |  AUS | DNS |   | 9 | 181 |   
 | 
|  Intermediate time: |  | 400m David Lekuta Rudisha (KEN) 54.04s |   
 | 
 
 Semi 3: Start time: 20:31, Temperature 21° C, Humidity 88 %%   
 
| Ranking Semi 3 | time |   | L | bib |  | 1. Amel Tuka |  BIH | 1:44.84 |   | 6 | 234 |  | 2. Ferguson Cheruiyot Rotich |  KEN | 1:44.85 |   | 4 | 701 |  | 3. Nader Belhanbel |  MAR | 1:45.28 |   | 5 | 730 |  | 4. Marcin Lewandowski |  POL | 1:45.34 |   | 7 | 799 |  | 5. Mark English |  IRL | 1:45.55 |   | 8 | 600 |  | 6. Rafith Rodríguez |  COL | 1:45.63 |   | 2 | 360 |  | 7. Erik Sowinski |  USA | 1:47.16 |   | 9 | 1058 |  | 8. Jena Umar |  ETH | 1:48.68 |   | 3 | 475 |   
 | 
|  Intermediate time: |  | 400m Ferguson Cheruiyot Rotich (KEN) 52.01s |   
 |  
|
  Heats - Saturday 22.08 11:50 |  | First 3 and Best 6 advanced to Final. |   
 Heat 1: Start time: 11:50, Temperature 31° C, Humidity 43 %%   
 
| Ranking Heat 1 | time |   | L | bib |  | 1. Nijel Amos |  BOT | 1:47.23 |   | 6 | 241 |  | 2. Antoine Gakeme |  BDI | 1:47.47 |   | 7 | 212 |  | 3. Ali Al-Deraan |  KSA | 1:47.65 |   | 5 | 713 |  | 4. Robin Schembera |  GER | 1:48.04 |   | 3 | 566 |  | 5. Joshua Ralph |  AUS | 1:48.90 |   | 9 | 180 |  | 6. Casimir Loxsom |  USA | 1:48.97 |   | 4 | 1040 |  | 7. Khalid Benmahdi |  ALG | 1:49.61 |   | 8 | 152 |   
 | 
|  Intermediate time: |  | 400m Casimir Loxsom (USA) 54.70s |   
 | 
 
 Heat 2: Start time: 11:57, Temperature 31° C, Humidity 43 %%   
 
| Ranking Heat 2 | time |   | L | bib |  | 1. Mohammed Aman |  ETH | 1:47.87 |   | 4 | 458 |  | 2. Pierre-Ambroise Bosse |  FRA | 1:47.89 |   | 7 | 490 |  | 3. Clayton Murphy |  USA | 1:48.08 |   | 8 | 1048 |  | 4. Giordano Benedetti |  ITA | 1:48.15 |   | 3 | 610 |  | 5. Jozef Repcìk |  SVK | 1:48.26 |   | 9 | 915 |  | 6. Jamal Hairane |  QAT | 1:48.96 |   | 5 | 828 |  | 7. Kyle Langford |  GBR | 1:49.78 |   | 6 | 533 |  | 8. Adnan Taess Akkar |  IRQ | 1:54.44 | Sb | 2 | 606 |   
 | 
|  Intermediate time: |  | 400m Giordano Benedetti (ITA) 54.14s |   
 | 
 
 Heat 3: Start time: 12:05, Temperature 31° C, Humidity 43 %%   
 
| Ranking Heat 3 | time |   | L | bib |  | 1. Amel Tuka |  BIH | 1:46.12 |   | 7 | 234 |  | 2. Nader Belhanbel |  MAR | 1:46.23 |   | 6 | 730 |  | 3. Rafith Rodríguez |  COL | 1:46.39 |   | 5 | 360 |  | 4. Erik Sowinski |  USA | 1:46.63 |   | 4 | 1058 |  | 5. Mark English |  IRL | 1:46.69 |   | 9 | 600 |  | 6. Rudolf Žan |  SLO | 1:47.24 |   | 8 | 899 |  | -. Alex Amankwah |  GHA | DNS |   | 3 | 573 |   
 | 
|  Intermediate time: |  | 400m Rafith Rodríguez (COL) 52.52s |   
 | 
 
 Heat 4: Start time: 12:13, Temperature 31° C, Humidity 43 %%   
 
| Ranking Heat 4 | time |   | L | bib |  | 1. Ferguson Cheruiyot Rotich |  KEN | 1:45.83 |   | 4 | 701 |  | 2. Amine El Manaoui |  MAR | 1:45.86 |   | 9 | 734 |  | 3. Kevin López |  ESP | 1:46.06 |   | 3 | 438 |  | 4. Konstantin Tolokonnikov |  RUS | 1:46.07 |   | 8 | 887 |  | 5. Marcin Lewandowski |  POL | 1:46.25 |   | 6 | 799 |  | 6. Thijmen Kupers |  NED | 1:46.70 |   | 7 | 762 |  | 7. Musa Hajdari |  KOS | 1:47.70 | Nr | 2 | 712 |  | 8. Brice Etes |  MON | 1:48.52 |   | 5 | 753 |   
 | 
|  Intermediate time: |  | 400m Thijmen Kupers (NED) 51.86s |   
 | 
 
 Heat 5: Start time: 12:21, Temperature 31° C, Humidity 43 %%   
 
| Ranking Heat 5 | time |   | L | bib |  | 1. Adam Kszczot |  POL | 1:46.62 |   | 4 | 797 |  | 2. Alfred Kipketer |  KEN | 1:46.67 |   | 6 | 685 |  | 3. Jeffrey Riseley |  AUS | 1:46.79 |   | 8 | 181 |  | 4. Jena Umar |  ETH | 1:47.03 |   | 3 | 475 |  | 5. Abdelati El Guesse |  MAR | 1:47.49 |   | 7 | 733 |  | 6. Andreas Almgren |  SWE | 1:48.06 |   | 9 | 917 |  | 7. Reinhardt van Rensburg |  RSA | 1:48.61 |   | 5 | 858 |   
 | 
|  Intermediate time: |  | 400m Jena Umar (ETH) 52.62s |   
 | 
 
 Heat 6: Start time: 12:29, Temperature 31° C, Humidity 43 %%   
 
| Ranking Heat 6 | time |   | L | bib |  | 1. David Lekuta Rudisha |  KEN | 1:48.31 |   | 5 | 702 |  | 2. Abraham Kipchirchir Rotich |  BRN | 1:48.42 |   | 4 | 290 |  | 3. Musaeb Abdulrahman Balla |  QAT | 1:48.59 |   | 8 | 825 |  | 4. Michael Rimmer |  GBR | 1:48.70 |   | 3 | 537 |  | 5. Andreas Bube |  DEN | 1:48.94 |   | 6 | 401 |  | 6. Artur Kuciapski |  POL | 1:49.22 |   | 2 | 798 |  | 7. Cleiton Abrão |  BRA | 1:49.79 |   | 7 | 248 |  | 8. Wais Ibrahim Khairandesh |  AFG | 1:59.51 |   | 9 | 150 |   
 | 
|  Intermediate time: |  | 400m David Lekuta Rudisha (KEN) 55.63s |   
 |  
| Record | Athlete | mark | venue | date |  | World Record | David Rudisha (KEN) | 1:40.91 | London, Great Britain | 9 August 2012 |  | Championship Record | Billy Konchellah (KEN) | 1:43.06 | Rome, Italy | 1 September 1987 |  | World Leading | Amel Tuka (BIH) | 1:42.51 | Fontvieille, Monaco | 17 July 2015 |  | African Record | David Rudisha (KEN) | 1:40.91 | London, Great Britain | 9 August 2012 |  | Asian Record | Yusuf Saad Kamel (BHR) | 1:42.79 | Fontvieille, Monaco | 29 July 2008 |  | NorCeCa Record | Johnny Gray (USA) | 1:42.60 | Koblenz, West Germany | 28 August 1985 |  | South American Record | Joaquim Cruz (BRA) | 1:41.77 | Cologne, West Germany | 26 August 1984 |  | European Record | Wilson Kipketer (DEN) | 1:41.11 | Cologne, Germany | 24 August 1997 |  | Oceanian Record | Peter Snell (NZL) | 1:44.3 | Christchurch, New Zealand | 3 February 1962 |   
 | 
 |  
| Athlete | Best 2015 | Pers. Best | Heat | L | birth | bib |  | 3. Amel Tuka |  BIH | 1:42.51 | 1:42.51 | Heat 3 | 7 | 09 Jan 91 | 234 |  | -. Nijel Amos |  BOT | 1:42.66 | 1:41.73 | Heat 1 | 6 | 15 Mar 94 | 241 |  | 2. Adam Kszczot |  POL | 1:43.45 | 1:43.30 | Heat 5 | 4 | 02 Sep 89 | 797 |  | -. Mohammed Aman |  ETH | 1:43.56 | 1:42.37 | Heat 2 | 4 | 10 Jan 94 | 458 |  | 1. David Lekuta Rudisha |  KEN | 1:43.58 | 1:40.91 | Heat 6 | 5 | 17 Dec 88 | 702 |  | 4. Ferguson Cheruiyot Rotich |  KEN | 1:43.60 | 1:42.84 | Heat 4 | 4 | 30 Nov 89 | 701 |  | -. Marcin Lewandowski |  POL | 1:43.72 | 1:43.72 | Heat 4 | 6 | 13 Jun 87 | 799 |  | 6. Musaeb Abdulrahman Balla |  QAT | 1:43.82 | 1:43.82 | Heat 6 | 8 | 19 Mar 89 | 825 |  | 5. Pierre-Ambroise Bosse |  FRA | 1:43.88 | 1:42.53 | Heat 2 | 7 | 11 May 92 | 490 |  | 8. Alfred Kipketer |  KEN | 1:44.07 | 1:43.95 | Heat 5 | 6 | 28 Dec 96 | 685 |  | -. Antoine Gakeme |  BDI | 1:44.09 | 1:44.09 | Heat 1 | 7 | 24 Dec 91 | 212 |  | 7. Nader Belhanbel |  MAR | 1:44.64 | 1:44.64 | Heat 3 | 6 | 01 Jul 94 | 730 |  | -. Erik Sowinski |  USA | 1:44.84 | 1:44.58 | Heat 3 | 4 | 21 Dec 89 | 1058 |  | -. Casimir Loxsom |  USA | 1:44.92 | 1:44.92 | Heat 1 | 4 | 17 Mar 91 | 1040 |  | -. Jeffrey Riseley |  AUS | 1:44.99 | 1:44.48 | Heat 5 | 8 | 11 Nov 86 | 181 |  | -. Giordano Benedetti |  ITA | 1:45.07 | 1:44.67 | Heat 2 | 3 | 22 May 89 | 610 |  | -. Artur Kuciapski |  POL | 1:45.21 | 1:44.89 | Heat 6 | 2 | 26 Dec 93 | 798 |  | -. Kevin López |  ESP | 1:45.25 | 1:43.74 | Heat 4 | 3 | 12 Jun 90 | 438 |  | -. Thijmen Kupers |  NED | 1:45.28 | 1:45.28 | Heat 4 | 7 | 04 Oct 91 | 762 |  | -. Abraham Kipchirchir Rotich |  BRN | 1:45.33 | 1:43.13 | Heat 6 | 4 | 26 Sep 93 | 290 |  | -. Jozef Repcìk |  SVK | 1:45.40 | 1:44.94 | Heat 2 | 9 | 03 Aug 86 | 915 |  | -. Reinhardt Van Rensburg |  RSA | 1:45.40 | 1:45.40 | Heat 5 | 5 | 23 Mar 92 | 858 |  | -. Robin Schembera |  GER | 1:45.48 | 1:45.48 | Heat 1 | 3 | 01 Oct 88 | 566 |  | -. Mark English |  IRL | 1:45.49 | 1:44.84 | Heat 3 | 9 | 18 Mar 93 | 600 |  | -. Rafith Rodríguez |  COL | 1:45.53 | 1:44.31 | Heat 3 | 5 | 01 Jun 89 | 360 |  | -. Ali Al-Deraan |  KSA | 1:45.57 | 1:45.57 | Heat 1 | 5 | 17 Apr 90 | 713 |  | -. Clayton Murphy |  USA | 1:45.59 | 1:45.59 | Heat 2 | 8 | 26 Feb 95 | 1048 |  | -. Andreas Almgren |  SWE | 1:45.59 | 1:45.59 | Heat 5 | 9 | 12 Jun 95 | 917 |  | -. Michael Rimmer |  GBR | 1:45.67 | 1:43.89 | Heat 6 | 3 | 03 Feb 86 | 537 |  | -. Amine El Manaoui |  MAR | 1:45.76 | 1:44.96 | Heat 4 | 9 | 20 Nov 91 | 734 |  | -. Konstantin Tolokonnikov |  RUS | 1:45.76 | 1:45.76 | Heat 4 | 8 | 26 Feb 96 | 887 |  | -. Andreas Bube |  DEN | 1:45.78 | 1:44.89 | Heat 6 | 6 | 13 Jul 87 | 401 |  | -. Kyle Langford |  GBR | 1:45.78 | 1:45.78 | Heat 2 | 6 | 02 Feb 96 | 533 |  | -. Abdelati El Guesse |  MAR | 1:45.78 | 1:45.78 | Heat 5 | 7 | 27 Feb 93 | 733 |  | -. Joshua Ralph |  AUS | 1:45.79 | 1:45.79 | Heat 1 | 9 | 27 Oct 91 | 180 |  | -. Alex Amankwah |  GHA | 1:45.91 | 1:45.91 | Heat 3 | 3 | 02 Mar 92 | 573 |  | -. Žan Rudolf |  SLO | 1:46.00 | 1:46.00 | Heat 3 | 8 | 09 May 93 | 899 |  |  Qualifiyng standard: 1:46.00 |  | -. Khalid Benmahdi |  ALG | 1:46.06 | 1:46.06 | Heat 1 | 8 | 22 Oct 88 | 152 |  | -. Jena Umar |  ETH | 1:46.07 | 1:46.07 | Heat 5 | 3 | 24 Dec 95 | 475 |  | -. Jamal Hairane |  QAT | 1:46.16 | 1:46.16 | Heat 2 | 5 | 26 May 93 | 828 |  | -. Cleiton Abrão |  BRA | 1:47.91 | 1:45.59 | Heat 6 | 7 | 08 Sep 89 | 248 |  | -. Brice Etes |  MON | 1:48.22 | 1:47.03 | Heat 4 | 5 | 11 Apr 84 | 753 |  | -. Musa Hajdari |  KOS | 1:48.79 | 1:48.38 | Heat 4 | 2 | 11 Oct 87 | 712 |  | -. Wais Ibrahim Khairandesh |  AFG | 1:57.61 | 1:55.91 | Heat 6 | 9 | 31 Dec 90 | 150 |   
 | 
 | 
 
| Name | Dist. | date | Venue |  | 1. David Lekuta Rudisha (ken) | 1:40.91 | 9 Aug 12 | London (Olympic Stadium) |  | 2. Wilson Kipketer (den) | 1:41.11 | 24 Aug 97 | Köln |  | 3. Sebastian Coe (gbr) | 1:41.73 | 10 Jun 81 | Firenze |  | 4. Nijel Amos (bot) | 1:41.73 | 9 Aug 12 | London (Olympic Stadium) |  | 5. Joaquim Cruz (bra) | 1:41.77 | 26 Aug 84 | Köln |  | 6. Abubaker Kaki (sud) | 1:42.23 | 4 Jun 10 | Oslo (Bislett) |  | 7. Sammy Koskei (ken) | 1:42.28 | 26 Aug 84 | Köln |  | 8. Wilfred Bungei (ken) | 1:42.34 | 8 Sep 02 | Rieti |  | 9. Mohammed Aman (eth) | 1:42.37 | 6 Sep 13 | Bruxelles (Boudewijnstadion) |  | 10.Yuriy Borzakovskiy (rus) | 1:42.47 | 24 Aug 01 | Bruxelles |   
| Name | Dist. | date | Venue |  | 1. Amel Tuka (bih) | 1:42.51 | 17 Jul 15 | Monaco (Stade Louis II) |  | 2. Nijel Amos (bot) | 1:42.66 | 17 Jul 15 | Monaco (Stade Louis II) |  | 3. Ayanleh Souleiman (dji) | 1:42.97 | 17 Jul 15 | Monaco (Stade Louis II) |  | 4. Boris Berian (usa) | 1:43.34 | 17 Jul 15 | Monaco (Stade Louis II) |  | 5. Adam Kszczot (pol) | 1:43.45 | 17 Jul 15 | Monaco (Stade Louis II) |  | 6. Mohammed Aman (eth) | 1:43.56 | 4 Jun 15 | Roma (Stadio Olimpico) |  | 6. Robert Kiptoo Biwott (ken) | 1:43.56 | 8 Jul 15 | Barcelona (Serrahima) |  | 8. David Lekuta Rudisha | 1:43.58 | 13 Jun 15 | New York (Icahn), NY |  | 9. Ferguson Cheruiyot Rotich (ken) | 1:43.60 | 1 Aug 15 | Nairobi (Kasarani) |  | 10.Marcin Lewandowski (pol) | 1:43.72 | 17 Jul 15 | Monaco (Stade Louis II) |   
 | 
 |  
 |