The women's 50 metre butterfly competition of the swimming events

Swimming at the 2011 World Aquatics Championships

The Swimming portion of the 2011 FINA World Championships was held July 24–31 at the Shanghai Oriental Sports Center in Shanghai, China. Swimming is one of five aquatic disciplines at the championships.-Qualifying criteria:...

 at the 2011 World Aquatics Championships

2011 World Aquatics Championships

The 14th FINA World Championships were held at July 16–31, 2011 in Shanghai, China at the Shanghai Oriental Sports Center. The 2011 World Championships featured five aquatics disciplines: swimming, water polo, diving, open water, and synchronised swimming...

 was held on July 29 with the heats and the semifinals and July 30 with the final.

Records

Prior to the competition, the existing world and championship records were as follows.

	Name	Nation	Time	Location	Date
World record Championship record	Therese Alshammar Therese Alshammar Malin Therese Alshammar is a Swedish swimmer who has won three Olympic medals, 25 World Championship medals, and 43 European Championship medals. Standing at 1.80 m, she is a specialist of short races in freestyle and butterfly...		25.07	Rome Rome Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...	July 31, 2009

No new world or competition records were set during this competition.

Heats

51 swimmers participated in 7 heats.

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	7	4	Therese Alshammar Therese Alshammar Malin Therese Alshammar is a Swedish swimmer who has won three Olympic medals, 25 World Championship medals, and 43 European Championship medals. Standing at 1.80 m, she is a specialist of short races in freestyle and butterfly...		25.68	Q
2	7	5	Jeanette Ottesen Jeanette Ottesen Jeanette Ottesen is a Danish swimmer who participated at the 2004 and 2008 Summer Olympics in swimming. She currently holds the Danish record in 100 m freestyle...		25.88	Q
3	7	7	Dana Vollmer Dana Vollmer Dana Vollmer is an American college and international swimmer and Olympic gold medalist. At the 2004 Summer Olympics in Athens, Greece she won a gold medal in the 4×200-meter freestyle relay with Natalie Coughlin, Kaitlin Sandeno, and Carly Piper that set the world record in the event.She has won...		25.98	Q
4	6	6	Lu Ying Lu Ying -External links:*Swim Rankings *...		26.16	Q
5	5	4	Sarah Sjöström Sarah Sjöström Sarah Fredrika Sjöström is a Swedish swimmer. On 22 March 2008, at the age of 14, she took the gold medal in women's 100 m butterfly at the 2008 European Aquatics Championships in Eindhoven, Netherlands. She was clocked for 58.44 seconds...		26.17	Q
6	6	2	Christine Magnuson Christine Magnuson Christine Marie Magnuson is an American swimmer and two-time Olympic medalist.She has won a total of five medals in major international competition, four silvers, and one bronze spanning the Olympics, the World Championships, and the Pan Pacific Championships.-Personal:Magnuson went to high school...		26.20	Q
7	6	4	Inge Dekker Inge Dekker Inge Dekker is a butterfly and freestyle swimmer from Netherlands, who won the bronze medal with the Dutch women's 4×100 m freestyle relay team at the 2004 Summer Olympics in Athens, Greece. She did so alongside Inge de Bruijn, Marleen Veldhuis and Chantal Groot...		26.32	Q
8	5	3	Mélanie Henique Mélanie Henique Mélanie Henique is a French swimmer who has won a bronze medal in 50 m butterfly at the World natation championships of 2011 in Shanghai.-Références:...		26.37	Q
9	6	3	Yuka Kato Yuka Kato is a Japanese butterfly swimmer.- Major achievements :2007 World Championships* 50m butterfly 10th 2008 Beijing Olympics* 100m butterfly 23rd * 4×100m medley relay 6th - Personal Bests :In long course...		26.37	Q
10	5	6	Triin Aljand Triin Aljand Triin Aljand is an Estonian swimmer. She was a member of the Estonian national team that competed in the 2004 Summer Olympics and multiple FINA World Aquatics Championships. She competed again for the team in the 2008 Summer Olympics.She currently attends Texas A&M University, where she swims for...		26.43	Q
11	7	6	Tao Li Tao Li Tao Li is a China-born Singaporean competitive swimmer specializing in the backstroke and butterfly stroke.A Singapore Sports School student, Tao has represented Singapore at the Southeast Asian Games and Asian Games and holds several national records...		26.43	Q
12	7	3	Marleen Veldhuis Marleen Veldhuis Magdalena Johanna Maria Veldhuis is a professional swimmer from the Netherlands. She is world record holder in 4 events . Veldhuis has won 6 world championships gold medals and 20 European championships gold medals...		26.50	Q
13	5	5	Marieke Guehrer Marieke Guehrer Marieke Katherine Guehrer is an Australian swimmer who is the world record holder in the 50 metres butterfly short course. She clocked 24.99 seconds...		26.59	Q
14	5	7	Daynara de Paula		26.60	Q
15	7	1	Vanessa Mohr		26.69	Q
16	6	7	Amit Ivry		26.83	Q
17	6	8	Elena Gemo		26.86
18	4	3	Katerine Savard		26.87
19	6	1	Sviatlana Khakhlova		26.98
20	5	2	Ingvild Snildal Ingvild Snildal Ingvild Snildal is an Olympic and National Record holding swimming from Norway. She swam for Norway at the 2008 Olympics, where she set the Norwegian Record in the 100m butterfly. Her club team is Asker svømmeklubb....		27.01
21	7	8	Ellen Gandy Ellen Gandy Ellen May Gandy is a female butterfly swimmer from Great Britain. She represented Great Britain at the 2008 Summer Olympics in the 200m butterfly swimming event....		27.01
22	7	2	Jiao Liuyang Jiao Liuyang Jiao Liuyang is a female Chinese swimmer, who competed at the 2008 Summer Olympics and finished second in the 200 m butterfly at 2:04.72, behind her teammate Liu Zige, who won the race in 2:04.18...		27.03
23	5	1	Kristel Vourna		27.15
24	6	5	Yolane Kukla Yolane Kukla Yolane Nicole Kukla is an Australian butterfly and freestyle swimmer.-Career:At the 2010 Telstra Australian Swimming Championships in Sydney at just 14, Kukla earned selection for the Commonwealth Games team for Delhi, where she won the gold medal in the 50m freestyle, and Australian team for the...		27.24
25	5	8	Fabienne Nadarajah		27.27
26	4	4	Hannah Wilson Hannah Wilson Hannah Wilson is a Hong Kong amateur swimmer. She is a two-time Olympic swimmer for Hong Kong, having swam at the 2004 Summer Olympic Games in Athens and the 2008 Summer Olympic Games in the Water Cube in Beijing. She has won two career Universiade gold medals...		27.38
27	4	5	Eszter Dara Eszter Dara Eszter Dara is a female Hungarian swimmer, who competed for her native country at the 2008 Summer Olympics.She won a bronze medal at the 2008 European Short Course Swimming Championships in 100 m butterfly...		27.53
28	4	6	Svetlana Fedulova		27.61
29	3	5	Katarina Listopadova		27.62
30	4	1	Sara Oliveira		27.75
31	4	8	Iris Rosenberger		27.82
32	3	4	Jeserick Pinto		27.91
33	3	3	Gabriela Nikitina		27.92
34	4	7	Alana Dillette Alana Dillette Alana Kathryn Dillette is an Olympic-swimmer from The Bahamas. She swam for the Bahamas at the 2008 Summer Olympics, as well as at the 2007 Pan American Games...		27.98
35	3	2	Talita Baqlah		29.16
36	3	6	Dorian McMenemy		29.37
37	3	1	Dalia Torrez		29.67
38	3	7	Kiran Khan Kiran Khan Kiran Khan . Kiran Khan is an Olympian Swimmer and national record-holder from Pakistan, and is one of the first international female swimmers for the country. She started her career in 2001. Kiran Khan first came to national attention at the 28th Pakistan National Games in 2001...		30.50
39	1	6	Ann-Marie Hepler		30.69
40	2	3	Sylvia Brunlehner		30.81
41	2	4	Hazboun Sabine		31.12
42	3	8	Reshika Udugampola		31.15
43	2	5	Judith Meauri		31.56
44	2	2	Kuheilani Snow		32.27
45	2	6	Johanna Umurungi		32.68
46	2	7	Ouyngerel Gantumur		33.48
47	2	8	Deandra van der Colff		34.06
48	2	1	Mariana Henriques		34.59
49	1	4	Karin O'Reilly Clashing		36.87
50	1	5	Shajan Aminath		38.37
51	1	3	Adzo Rebecca Kpossi		55.17
–	4	2	Hayley Palmer Hayley Palmer Hayley Gloria Palmer is an Olympian and National Record holding swimmer from New Zealand. She swam for NZ at the 2008 Beijing Olympic Games.-Early life:Palmer was born in Cheltenham, England...			DNS

Semifinal 1

Rank	Lane	Name	Nationality	Time	Notes
1	5	Lu Ying Lu Ying -External links:*Swim Rankings *...		25.87	Q
2	6	Mélanie Henique Mélanie Henique Mélanie Henique is a French swimmer who has won a bronze medal in 50 m butterfly at the World natation championships of 2011 in Shanghai.-Références:...		26.29	Q
3	1	Daynara de Paula		26.39
4	3	Christine Magnuson Christine Magnuson Christine Marie Magnuson is an American swimmer and two-time Olympic medalist.She has won a total of five medals in major international competition, four silvers, and one bronze spanning the Olympics, the World Championships, and the Pan Pacific Championships.-Personal:Magnuson went to high school...		26.43
5	2	Triin Aljand Triin Aljand Triin Aljand is an Estonian swimmer. She was a member of the Estonian national team that competed in the 2004 Summer Olympics and multiple FINA World Aquatics Championships. She competed again for the team in the 2008 Summer Olympics.She currently attends Texas A&M University, where she swims for...		26.48
6	4	Jeanette Ottesen Jeanette Ottesen Jeanette Ottesen is a Danish swimmer who participated at the 2004 and 2008 Summer Olympics in swimming. She currently holds the Danish record in 100 m freestyle...		26.53
7	7	Marleen Veldhuis Marleen Veldhuis Magdalena Johanna Maria Veldhuis is a professional swimmer from the Netherlands. She is world record holder in 4 events . Veldhuis has won 6 world championships gold medals and 20 European championships gold medals...		26.61
8	8	Amit Ivry		26.79

Semifinal 2

Rank	Lane	Name	Nationality	Time	Notes
1	4	Therese Alshammar Therese Alshammar Malin Therese Alshammar is a Swedish swimmer who has won three Olympic medals, 25 World Championship medals, and 43 European Championship medals. Standing at 1.80 m, she is a specialist of short races in freestyle and butterfly...		25.52	Q
2	6	Inge Dekker Inge Dekker Inge Dekker is a butterfly and freestyle swimmer from Netherlands, who won the bronze medal with the Dutch women's 4×100 m freestyle relay team at the 2004 Summer Olympics in Athens, Greece. She did so alongside Inge de Bruijn, Marleen Veldhuis and Chantal Groot...		25.78	Q
3	3	Sarah Sjöström Sarah Sjöström Sarah Fredrika Sjöström is a Swedish swimmer. On 22 March 2008, at the age of 14, she took the gold medal in women's 100 m butterfly at the 2008 European Aquatics Championships in Eindhoven, Netherlands. She was clocked for 58.44 seconds...		25.90	Q
4	2	Yuka Kato Yuka Kato is a Japanese butterfly swimmer.- Major achievements :2007 World Championships* 50m butterfly 10th 2008 Beijing Olympics* 100m butterfly 23rd * 4×100m medley relay 6th - Personal Bests :In long course...		26.07	Q, =NR
5	1	Marieke Guehrer Marieke Guehrer Marieke Katherine Guehrer is an Australian swimmer who is the world record holder in the 50 metres butterfly short course. She clocked 24.99 seconds...		26.12	Q
6	5	Dana Vollmer Dana Vollmer Dana Vollmer is an American college and international swimmer and Olympic gold medalist. At the 2004 Summer Olympics in Athens, Greece she won a gold medal in the 4×200-meter freestyle relay with Natalie Coughlin, Kaitlin Sandeno, and Carly Piper that set the world record in the event.She has won...		26.32	Q
7	7	Tao Li Tao Li Tao Li is a China-born Singaporean competitive swimmer specializing in the backstroke and butterfly stroke.A Singapore Sports School student, Tao has represented Singapore at the Southeast Asian Games and Asian Games and holds several national records...		26.34
8	8	Vanessa Mohr		26.74

Final

The final was held at 18:02.

Rank	Lane	Name	Nationality	Time	Notes
	5	Inge Dekker Inge Dekker Inge Dekker is a butterfly and freestyle swimmer from Netherlands, who won the bronze medal with the Dutch women's 4×100 m freestyle relay team at the 2004 Summer Olympics in Athens, Greece. She did so alongside Inge de Bruijn, Marleen Veldhuis and Chantal Groot...		25.71
	4	Therese Alshammar Therese Alshammar Malin Therese Alshammar is a Swedish swimmer who has won three Olympic medals, 25 World Championship medals, and 43 European Championship medals. Standing at 1.80 m, she is a specialist of short races in freestyle and butterfly...		25.76
	1	Mélanie Henique Mélanie Henique Mélanie Henique is a French swimmer who has won a bronze medal in 50 m butterfly at the World natation championships of 2011 in Shanghai.-Références:...		25.86	NR
4	3	Lu Ying Lu Ying -External links:*Swim Rankings *...		25.87
4	6	Sarah Sjöström Sarah Sjöström Sarah Fredrika Sjöström is a Swedish swimmer. On 22 March 2008, at the age of 14, she took the gold medal in women's 100 m butterfly at the 2008 European Aquatics Championships in Eindhoven, Netherlands. She was clocked for 58.44 seconds...		25.87
6	2	Yuka Kato Yuka Kato is a Japanese butterfly swimmer.- Major achievements :2007 World Championships* 50m butterfly 10th 2008 Beijing Olympics* 100m butterfly 23rd * 4×100m medley relay 6th - Personal Bests :In long course...		26.02	NR
7	8	Dana Vollmer Dana Vollmer Dana Vollmer is an American college and international swimmer and Olympic gold medalist. At the 2004 Summer Olympics in Athens, Greece she won a gold medal in the 4×200-meter freestyle relay with Natalie Coughlin, Kaitlin Sandeno, and Carly Piper that set the world record in the event.She has won...		26.06
8	7	Marieke Guehrer Marieke Guehrer Marieke Katherine Guehrer is an Australian swimmer who is the world record holder in the 50 metres butterfly short course. She clocked 24.99 seconds...		26.21

External links

• 2011 World Aquatics Championships: Women's 50 metre butterfly start list, from OmegaTiming.com; retrieved 2011-07-23.