Swimming at the 2017 World Aquatics Championships – Women's 50 metre butterfly
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The Women's 50 metre butterfly competition at the 2017 World Championships was held on 28 and 29 July 2017.[1][2]
| Women's 50 metre butterfly at the 2017 World Aquatics Championships | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Venue | Danube Arena | |||||||||
| Location | Budapest, Hungary | |||||||||
| Dates | 28 July (heats and semifinals) 29 July (final) | |||||||||
| Competitors | 63 from 55 nations | |||||||||
| Winning time | 24.60 | |||||||||
| Medalists | ||||||||||
| ||||||||||
Records
Prior to the competition, the existing world and championship records were as follows.
| World record |  Sarah Sjöström (SWE) | 24.43 | Borås, Sweden | 5 July 2014 |
|---|---|---|---|---|
| Competition record | Sarah Sjöström (SWE) | 24.96 | Kazan, Russia | 8 August 2015 |
The following new records were set during this competition.
| Date | Event | Name | Nationality | Time | Record |
|---|---|---|---|---|---|
| 29 July | Final | Sarah Sjöström | Sweden | 24.60 | CR |
Results
Heats
The heats were held on 28 July at 09:56.[3]
Semifinals
The semifinals were held on 28 July at 18:46.[4]
Semifinal 1
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 4 | Kelsi Worrell |  United States | 25.57 | Q |
| 2 | 6 | Mélanie Henique |  France | 25.63 | Q, NR |
| 3 | 2 | Penny Oleksiak |  Canada | 25.66 | Q, NR |
| 4 | 5 | Aliena Schmidtke |  Germany | 25.68 | Q, NR |
| 5 | 3 | Farida Osman |  Egypt | 25.73 | Q, AF |
| 6 | 7 | Holly Barratt |  Australia | 25.76 | |
| 7 | 8 | Lu Ying |  China | 25.79 | |
| 8 | 1 | Maaike de Waard |  Netherlands | 25.89 |
Semifinal 2
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 4 | Sarah Sjöström | Sweden | 25.30 | Q |
| 2 | 3 | Ranomi Kromowidjojo | Netherlands | 25.67 | Q |
| 3 | 2 | Kimberly Buys |  Belgium | 25.70 | Q, NR |
| 4 | 7 | Emilie Beckmann |  Denmark | 25.77 | |
| 5 | 5 | Rikako Ikee |  Japan | 25.90 | |
| 6 | 1 | Aleksandra Urbańczyk |  Poland | 25.94 | |
| 7 | 6 | Béryl Gastaldello | France | 26.01 | |
| 8 | 8 | Silvia di Pietro |  Italy | 26.06 |
Final
The final was held on 29 July at 17:32.[5]
| Rank | Lane | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
 | 4 | Sarah Sjöström | Sweden | 24.60 | CR |
 | 2 | Ranomi Kromowidjojo | Netherlands | 25.38 | |
 | 8 | Farida Osman | Egypt | 25.39 | AF |
| 4 | 5 | Kelsi Worrell | United States | 25.48 | AM |
| 5 | 6 | Penny Oleksiak | Canada | 25.62 | NR |
| 6 | 3 | Mélanie Henique | France | 25.76 | |
| 7 | 1 | Kimberly Buys | Belgium | 25.78 | |
| 8 | 7 | Aliena Schmidtke | Germany | 26.08 |