| Event: | Men's 400 metres |
| Competition: | 2013 World Championships |
| Venue: | Luzhniki Stadium |
| Dates: | 11 August (heats) 12 August (semifinals) 13 August (final) |
| Competitors: | 35 |
| Nations: | 26 |
| Win Value: | 43.74 |
| Gold: | LaShawn Merritt |
| Silver: | Tony McQuay |
| Bronze: | Luguelín Santos |
| Prev: | 2011 |
| Next: | 2015 |
The men's 400 metres at the 2013 World Championships in Athletics was held at the Luzhniki Stadium on 11–13 August.[1] The winning margin was 0.66 seconds.
The final had the 2008 Olympic Champion/2009 World Champion LaShawn Merritt and current defending champion and Olympic champion Kirani James in lanes 6 and 5 respectively. At the gun, Merritt took it out hard, passing Luguelín Santos to his outside and leaving him a couple meters behind at the halfway mark. James worked hard along the backstretch and into the turn to keep up with Merritt reaching the final straight two meters back, Jonathan Borlée one meter further back while the rest of the field almost 5 meters back with Santos the last out of the turn. Then the long striding James began to flail in quicksand. As Merritt charged home for the personal best 43.74 win, James fell back through the field. In lane 4, Tony McQuay asserted himself against the rest of the field, the first to pass James and run home for the silver. Borlée was clearly the next but Santos came from dead last to catch him just before the line to take the bronze.
Prior to the competition, the records were as follows:[2]
| World record | 43.18 |  Sevilla, Spain | 26 August 1999 | ||
| Championship record | |||||
| World Leading | 43.96 |  Saint-Denis, France | 6 July 2013 | ||
| African Record | 44.10 | Stuttgart, Germany | 9 September 2006 | ||
| Asian Record | 44.56 |  Budapest, Hungary | 12 August 1988 | ||
| North, Central American and Caribbean record | 43.18 | Seville, Spain | 26 August 1999 | ||
| South American Record | 44.29 | Seville, Spain | 26 August 1999 | ||
| European Record | 44.33 |  Rome, Italy | 3 September 1987 | ||
| Oceanian record | 44.38 |  Seoul, South Korea | 26 September 1988 |
| Date | Time | Round | |
|---|---|---|---|
| 11 August 2013 | 11:05 | Heats | |
| 12 August 2013 | 20:05 | Semifinals | |
| 13 August 2013 | 21:50 | Final |
| KEY: | bgcolor=ccffcc align=center | q | Fastest non-qualifiers | bgcolor=ccffcc align=center | Q | Qualified | NR | National record | PB | Personal best | SB | Seasonal best |
Qualification: First 4 in each heat (Q) and the next 4 fastest (q) advanced to the semifinals.[3]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 3 | 6 | 44.92 | Q | |||
| 2 | 5 | 7 | 45.00 | Q | |||
| 3 | 1 | 4 | 45.06 | Q | |||
| 4 | 2 | 5 | 45.13 | Q, PB | |||
| 5 | 3 | 8 | 45.17 | Q | |||
| 6 | 5 | 2 | 45.19 | Q, PB | |||
| 7 | 5 | 8 | 45.20 | Q | |||
| 8 | 4 | 8 | 45.23 | Q | |||
| 9 | 1 | 2 | 45.24 | Q | |||
| 10 | 4 | 7 | 45.32 | Q | |||
| 11 | 2 | 7 | 45.37 | Q | |||
| 12 | 2 | 6 | 45.39 | Q, PB | |||
| 12 | 2 | 2 | 45.39 | Q | |||
| 12 | 4 | 5 | 45.39 | Q | |||
| 15 | 4 | 2 | 45.41 | Q | |||
| 16 | 3 | 3 | 45.44 | Q | |||
| 17 | 2 | 3 | 45.45 | q | |||
| 18 | 1 | 3 | 45.50 | Q | |||
| 19 | 3 | 5 | 45.82 | Q, PB | |||
| 20 | 5 | 3 | 45.93 | Q | |||
| 21 | 4 | 3 | 45.97 | q | |||
| 22 | 2 | 4 | 46.04 | q | |||
| 23 | 1 | 5 | 46.16 | Q | |||
| 24 | 4 | 4 | 46.18 | q | |||
| 25 | 3 | 7 | 46.23 | ||||
| 26 | 5 | 4 | 46.37 | ||||
| 27 | 3 | 4 | 46.65 | ||||
| 28 | 5 | 5 | 47.52 | ||||
| 29 | 1 | 6 | 47.53 | ||||
| 30 | 5 | 6 | 48.65 | ||||
| 31 | 3 | 2 | 49.98 | ||||
| 32 | 2 | 8 | 52.33 | PB | |||
| 1 | 7 | R 163.3 | |||||
| 4 | 6 | R 163.3 | |||||
| 1 | 8 | R 163.3 |
Qualification: First 2 in each heat (Q) and the next 2 fastest (q) advanced to the final.[4]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 2 | 6 | 44.60 | Q | |||
| 2 | 1 | 8 | 44.61 | Q, NR | |||
| 3 | 1 | 3 | 44.66 | Q | |||
| 4 | 3 | 4 | 44.81 | Q | |||
| 5 | 3 | 6 | 44.83 | Q | |||
| 6 | 3 | 7 | 44.84 | q, NR | |||
| 7 | 2 | 3 | 44.85 | Q | |||
| 8 | 1 | 5 | 44.95 | q, PB | |||
| 9 | 1 | 4 | 45.03 | ||||
| 10 | 2 | 8 | 45.18 | SB | |||
| 11 | 3 | 5 | 45.43 | ||||
| 12 | 2 | 4 | 45.47 | ||||
| 13 | 3 | 2 | 45.54 | ||||
| 14 | 3 | 8 | 45.60 | ||||
| 15 | 1 | 6 | 45.62 | ||||
| 16 | 2 | 5 | 45.69 | ||||
| 17 | 3 | 3 | 45.77 | ||||
| 18 | 1 | 7 | 45.89 | ||||
| 19 | 2 | 1 | 45.89 | ||||
| 20 | 2 | 2 | 45.93 | ||||
| 21 | 1 | 2 | 45.98 | ||||
| 22 | 2 | 7 | 46.22 | ||||
| 23 | 1 | 1 | 46.28 | ||||
| 24 | 3 | 1 | 46.34 |
The final was held at 21:50.[5]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 6 | 43.74 | PB, WL | ||||
| 4 | 44.40 | PB | ||||
| 7 | 44.52 | SB | ||||
| 4 | 8 | 44.54 | SB | |||
| 5 | 1 | 44.91 | ||||
| 6 | 3 | 44.97 | ||||
| 7 | 5 | 44.99 | ||||
| 8 | 2 | 45.03 |