The women's 100 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 took place July 24 and 25. The heats and semifinals took place July 24 and the final was held July 25.

Records

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

	Name	Nation	Time	Location	Date
World record Championship record	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...		56.06	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 27, 2009

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

Heats

47 swimmers participated in 6 heats, qualified swimmers are listed:

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	5	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...		56.97	Q
2	6	4	Alicia Coutts Alicia Coutts Alicia Jayne Coutts is an Australian medley, butterfly and freestyle swimmer. She represented Australia at the 2008 Summer Olympics, and the 2010 Commonwealth Games .-Career:...		57.49	Q
3	4	5	Jemma Lowe Jemma Lowe Jemma Louise Lowe is an English university and international butterfly swimmer and British record holder.Lowe was born in Hartlepool, England, United Kingdom...		57.81	Q
4	4	2	Jessicah Schipper Jessicah Schipper Jessicah Lee Schipper OAM is an Australian swimmer. She trained at the Redcliffe Leagues Lawnton club in Brisbane, under veteran coach Ken Wood up until the conclusion of the 2008 Summer Olympics. Schipper now trains under the guidance of Stephan Widmer with the Commercial Swimming Club...		57.86	Q
5	6	2	Lu Ying Lu Ying -External links:*Swim Rankings *...		57.93	Q
6	4	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...		58.10	Q
7	4	3	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....		58.32	Q
7	5	6	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...		58.32	Q
9	6	5	Liu Zige Liu Zige Liu Zige is a world record holding swimmer from China. She swam for China at the 2008 Olympics, where she won the women's 200  butterfly in a new world record ....		58.44	Q
10	5	4	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...		58.49	Q
11	5	3	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...		58.53	Q
12	4	6	Katerine Savard		58.59	Q
13	6	6	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...		58.70	Q
14	6	3	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...		58.71	Q
15	5	2	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...		58.89	Q
15	6	8	Irina Bespalova Irina Bespalova Irina Nikolayevna Bespalova is a female butterfly swimmer from Russia, who represented her native country at the 2008 Summer Olympics in Beijing, PR China.-References:*...		58.89	Q
17	4	7	Vanessa Mohr		58.96
17	4	8	Sina Sutter		58.96
19	2	3	Otylia Jędrzejczak Otylia Jedrzejczak Otylia Jędrzejczak is a Polish swimmer. She is the Olympic champion from Athens 2004 in the 200 metre butterfly. She finished 4th in this event in the 2008 Summer Olympics in Beijing. She also swam in a third Olympiad, at the 2000 Summer Olympics in Sydney. In Athens 2004 she also silvered in...		59.00
20	5	8	Audrey Lacroix Audrey Lacroix Audrey Lacroix is a Canadian swimmer from Montreal, Quebec. She is the Canadian record holder in the 100 metre butterfly , 200 metre butterfly . She is also the world record holder in the short-course 4x100 medley relay event with her fellow teammates, Katy Murdoch, Annamay Pierse, and Victoria Poon...		59.02
21	5	1	Daynara de Paula		59.24
22	6	7	Kristel Vourna		59.27
23	3	6	Judit Ignacio Sorribes		59.52
24	5	7	Amit Ivry		59.56
25	3	4	Natsumi Hoshi		59.63
26	3	2	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...		59.78
26	3	8	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...		59.78
28	2	5	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....		59.80
29	2	4	Birgit Koschischek		59.84
30	2	6	Katarina Listopadova		59.87
31	3	1	Kimberly Buys		59.88
32	6	1	Sara Oliveira		59.93
33	3	5	Sara Isakovic Sara Isakovic Sara Isakovič is a freestyle swimmer from Slovenia. She spent much of her childhood in Dubai. Isakovič was a member of the Žito Gorenjka Radovljica Swimming Club from Radovljica, Slovenia and trained under the supervision of coach Miha Potočnik.Isakovič competed for Slovenia at the 2004 Summer...		1:00.23
34	3	3	Ilaria Bianchi		1:00.36
35	2	2	Rita Medrano		1:00.55
36	4	1	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...		1:00.69
37	2	7	Se-Hyeon An		1:00.76
38	2	1	Iris Rosenberger		1:00.99
39	3	7	Sophia Batchelor		1:01.92
40	1	4	Jasmine Alkhaldi		1:03.69
41	1	3	Loreen Whitfield		1:04.82
42	1	5	Marie Laura Meza		1:05.05
43	1	6	Noel Borshi		1:05.71
43	1	7	Dalia Torrez		1:05.71
45	1	1	Simona Muccioli		1:06.45
46	1	2	Dorian McMenemy		1:06.58
47	1	8	Debra Daniel		1:14.51

Swimoff

As two swimmers had the same time in the heats at place 17 they had to particpate in a swimoff to determine the first semifinal reserve swimmer.

Rank	Lane	Name	Nationality	Time	Notes
1	4	Vanessa Mohr		58.66
2	5	Sina Sutter		59.47

Semifinal 1

Rank	Lane	Name	Nationality	Time	Notes
1	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...		57.29	Q
2	4	Alicia Coutts Alicia Coutts Alicia Jayne Coutts is an Australian medley, butterfly and freestyle swimmer. She represented Australia at the 2008 Summer Olympics, and the 2010 Commonwealth Games .-Career:...		57.41	Q
3	5	Jessicah Schipper Jessicah Schipper Jessicah Lee Schipper OAM is an Australian swimmer. She trained at the Redcliffe Leagues Lawnton club in Brisbane, under veteran coach Ken Wood up until the conclusion of the 2008 Summer Olympics. Schipper now trains under the guidance of Stephan Widmer with the Commercial Swimming Club...		57.95	Q
4	7	Katerine Savard		58.07
5	1	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...		58.20
6	6	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...		58.24
7	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...		58.59
8	8	Irina Bespalova Irina Bespalova Irina Nikolayevna Bespalova is a female butterfly swimmer from Russia, who represented her native country at the 2008 Summer Olympics in Beijing, PR China.-References:*...		59.02

Semifinal 2

Rank	Lane	Name	Nationality	Time	Notes
1	4	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...		56.47	Q, AM
2	3	Lu Ying Lu Ying -External links:*Swim Rankings *...		57.18	Q
3	5	Jemma Lowe Jemma Lowe Jemma Louise Lowe is an English university and international butterfly swimmer and British record holder.Lowe was born in Hartlepool, England, United Kingdom...		57.57	Q
4	2	Liu Zige Liu Zige Liu Zige is a world record holding swimmer from China. She swam for China at the 2008 Olympics, where she won the women's 200  butterfly in a new world record ....		57.85	Q
5	6	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....		57.97	Q
6	7	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...		58.70
7	1	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...		58.71
8	8	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...		58.78

Final

The final was held at 18:02.

Rank	Lane	Name	Nationality	Time	Notes
	4	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...		56.87
	6	Alicia Coutts Alicia Coutts Alicia Jayne Coutts is an Australian medley, butterfly and freestyle swimmer. She represented Australia at the 2008 Summer Olympics, and the 2010 Commonwealth Games .-Career:...		56.94
	5	Lu Ying Lu Ying -External links:*Swim Rankings *...		57.06
4	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...		57.38
5	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....		57.55
6	7	Liu Zige Liu Zige Liu Zige is a world record holding swimmer from China. She swam for China at the 2008 Olympics, where she won the women's 200  butterfly in a new world record ....		57.57
7	1	Jessicah Schipper Jessicah Schipper Jessicah Lee Schipper OAM is an Australian swimmer. She trained at the Redcliffe Leagues Lawnton club in Brisbane, under veteran coach Ken Wood up until the conclusion of the 2008 Summer Olympics. Schipper now trains under the guidance of Stephan Widmer with the Commercial Swimming Club...		57.95
8	2	Jemma Lowe Jemma Lowe Jemma Louise Lowe is an English university and international butterfly swimmer and British record holder.Lowe was born in Hartlepool, England, United Kingdom...		57.96

External links

• 2011 World Aquatics Championships: Women's 100 metre butterfly entry list, from OmegaTiming.com; retrieved 2011-07-23.