2007 World Championships in Athletics – Men's 400 metres
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Events at the 2007 World Championships 
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|---|---|---|---|---|
| Track events | ||||
| 100 m | men | women | ||
| 200 m | men | women | ||
| 400 m | men | women | ||
| 800 m | men | women | ||
| 1500 m | men | women | ||
| 5000 m | men | women | ||
| 10,000 m | men | women | ||
| 100 m hurdles | women | |||
| 110 m hurdles | men | |||
| 400 m hurdles | men | women | ||
| 3000 m steeplechase |
men | women | ||
| 4×100 m relay | men | women | ||
| 4×400 m relay | men | women | ||
| Road events | ||||
| Marathon | men | women | ||
| 20 km walk | men | women | ||
| 50 km walk | men | |||
| Field events | ||||
| Long jump | men | women | ||
| Triple jump | men | women | ||
| High jump | men | women | ||
| Pole vault | men | women | ||
| Shot put | men | women | ||
| Discus throw | men | women | ||
| Javelin throw | men | women | ||
| Hammer throw | men | women | ||
| Combined events | ||||
| Heptathlon | women | |||
| Decathlon | men | |||
The men's 400 metres at the 2007 World Championships in Athletics was held at the Nagai Stadium on 28, 29 and 31 August.
Prior to the competition, the established records were as follows.
Qualification: First 3 in each heat (Q) and the next 3 fastest (q) advance to the semifinals.
First 2 in each semifinal (Q) and the next 2 fastest (q) advance to the final.
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