| Men's 50 metre freestyle at the 2009 FINA World Championships |
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| Venue | Foro Italico | |||||||||
| Dates | 31 July 2009 (heats, semifinals) 1 August 2009 (final) |
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| Competitors | 222 from 140 nations | |||||||||
| Winning time | 21.08 seconds | |||||||||
| Medalists | ||||||||||
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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.