The heats for the men's 50 metre freestyle race at the 2009 World Championships took place on 31 July (heats and semifinals) and 1 August 2009 (final) at the Foro Italico in Rome, Italy.

Contents

Records

Prior to this competition, the existing world and competition records were as follows:

The following records were established during the competition:

Results

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swimming at the 2009 World Aquatics Championships – men's 50 metre freestyle

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swimming at the 2009 World Aquatics Championships – men's 50 metre freestyle

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swimming at the 2009 World Aquatics Championships – men's 50 metre freestyle across IJR

Article

Records

Results

Article

Records

Results

swimming at the 2009 World Aquatics Championships – men's 50 metre freestyle across IJR