2007 World Championships in Athletics – Men's 800 metres
The men's 800 metres at the 2007 World Championships in Athletics was held at the Nagai Stadium on 30, 31 August and 2 September.Medalists
Records
Prior to the competition, the following records were as follows.
Schedule
Results
Heats
Qualification: First 3 in each heat and the next 6 fastest advance to the [|semifinals].
| Rank | Heat | Name | Nationality | Time | Notes |
| 6 | Yusuf Saad Kamel | | 1:45.25 | Q |
| 4 | Alfred Kirwa Yego | | 1:45.52 | Q, SB |
| 3 | Mbulaeni Mulaudzi | | 1:45.56 | Q |
| 5 | Mohammed Al-Salhi | | 1:45.58 | Q |
| 3 | Rashid Ramzi | | 1:45.64 | Q, SB |
| 3 | Dmitriy Bogdanov | | 1:45.66 | Q |
| 4 | Michael Rimmer | | 1:45.66 | Q |
| 6 | Abraham Chepkirwok | | 1:45.68 | Q |
| 4 | Dmitrijs Miļkevičs | | 1:45.72 | Q |
| 10 | 3 | Fabiano Peçanha | | 1:45.77 | q |
| 11 | 4 | Khadevis Robinson | | 1:45.78 | q |
| 12 | 5 | Yuriy Borzakovskiy | | 1:45.79 | Q |
| 13 | 5 | Wilfred Bungei | | 1:45.79 | Q |
| 14 | 6 | Mohammad Al-Azemi | | 1:45.85 | Q |
| 15 | 4 | Manuel Olmedo | | 1:45.90 | q |
| 15 | 5 | Yassine Bensghir | | 1:45.90 | q, SB |
| 17 | 1 | Amine Laâlou | | 1:46.00 | Q |
| 17 | 2 | Gary Reed | | 1:46.00 | Q |
| 19 | 2 | Nabil Madi | | 1:46.02 | Q |
| 20 | 2 | Justus Koech | | 1:46.08 | Q |
| 21 | 1 | Nick Symmonds | | 1:46.16 | Q |
| 21 | 6 | Mouhssin Chehibi | | 1:46.16 | q |
| 23 | 1 | Kléberson Davide | | 1:46.17 | Q |
| 24 | 5 | Abdoulaye Wagne | | 1:46.20 | q |
| 25 | 6 | Samwel Mwera | | 1:46.24 | SB |
| 26 | 3 | Yeimer López | | 1:46.28 | |
| 27 | 4 | Eduard Villanueva | | 1:46.33 | PB |
| 28 | 1 | Belal Mansoor Ali | | 1:46.34 | |
| 29 | 2 | Antonio Manuel Reina | | 1:46.35 | |
| 30 | 5 | Abubaker Kaki Khamis | | 1:46.38 | |
| 31 | 3 | Mattias Claesson | | 1:46.43 | PB |
| 32 | 4 | David Campbell | | 1:46.47 | |
| 33 | 6 | Jozef Repcìk | | 1:46.53 | |
| 34 | 3 | Eugenio Barrios | | 1:46.62 | |
| 35 | 1 | Achraf Tadili | | 1:46.73 | |
| 36 | 1 | Sajjad Moradi | | 1:46.75 | |
| 37 | 3 | Bram Som | | 1:46.81 | |
| 38 | 5 | Masato Yokota | | 1:47.16 | PB |
| 39 | 2 | Arnoud Okken | | 1:47.23 | |
| 40 | 2 | Jeffrey Riseley | | 1:47.44 | |
| 41 | 2 | Aunese Curreen | | 1:47.72 | NR |
| 42 | 4 | Fadrique Iglesias | | 1:48.42 | |
| 43 | 6 | Duane Solomon | | 1:48.95 | |
| 44 | 5 | Mahamoud Farah | | 1:49.06 | |
| 45 | 6 | Souleymane Ould Chebal | | 1:56.45 | SB |
| 46 | 1 | Mohammed Ahmed Al-Yafaee | | 1:56.55 | |
| 1 | Ismail Ahmed Ismail | | | DNF |
| 2 | Ivan Heshko | | | DNS |
Semifinals
Qualification: First 2 in each semifinal and the next 2 fastest advance to the [|final].
| Rank | Heat | Name | Nationality | Time | Notes |
| 1 | Alfred Kirwa Yego | | 1:44.54 | Q, SB |
| 1 | Mbulaeni Mulaudzi | | 1:44.71 | Q |
| 1 | Abraham Chepkirwok | | 1:44.84 | q |
| 2 | Gary Reed | | 1:44.92 | Q |
| 2 | Amine Laâlou | | 1:45.11 | Q |
| 3 | Yuriy Borzakovskiy | | 1:45.12 | Q |
| 3 | Wilfred Bungei | | 1:45.20 | Q |
| 3 | Mohammed Al-Salhi | | 1:45.23 | q |
| 3 | Yusuf Saad Kamel | | 1:45.31 | |
| 10 | 2 | Dmitriy Bogdanov | | 1:45.36 | SB |
| 11 | 1 | Khadevis Robinson | | 1:45.45 | |
| 12 | 2 | Nabil Madi | | 1:45.59 | |
| 13 | 2 | Manuel Olmedo | | 1:45.61 | |
| 14 | 1 | Fabiano Peçanha | | 1:45.95 | |
| 15 | 1 | Dmitrijs Miļkevičs | | 1:46.27 | |
| 16 | 2 | Nick Symmonds | | 1:46.41 | |
| 17 | 3 | Kléberson Davide | | 1:46.45 | |
| 18 | 1 | Abdoulaye Wagne | | 1:46.49 | |
| 19 | 2 | Justus Koech | | 1:46.86 | |
| 20 | 3 | Michael Rimmer | | 1:47.39 | |
| 21 | 2 | Rashid Ramzi | | 1:47.76 | |
| 22 | 3 | Yassine Bensghir | | 1:48.04 | |
| 23 | 3 | Mohammad Al-Azemi | | 1:50.28 | |
| 24 | 1 | Mouhssin Chehibi | | 1:51.31 | |
Final
