Swimming at the 2011 World Aquatics Championships – Men's 50 metre butterfly
| Men's 50 metre butterfly at the 2011 World Aquatics Championships |
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| Dates | July 24, 2011 (heats and semifinals) July 25, 2011 (final) |
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| Competitors | 56 from 52 nations | |||||||||
| Winning time | 23.10 | |||||||||
| Medalists | ||||||||||
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The men's 50 metre butterfly competition of the swimming events at the 2011 World Aquatics Championships took place July 24 and 25. The heats and semifinals took place July 24 and the final was held July 25.
Prior to the competition, the existing world and championship records were as follows.
56 swimmers participated in 7 heats, qualified swimmers are listed:
As two swimmers had the same time in the heats at place 16 they had to participate in a swimoff to determine the last semifinal swimmer.
The semifinals were held at 18:30.
The final was held at 18:39.
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