Leisel Marie Jones, OAM is an Australian former competition swimmer and Olympic gold medallist. A participant in the 2000 Summer Olympics – at just 15 years old – and 2004 Summer Olympics, she was part of gold-medal-winning Australian team in the women's 4×100-metre medley relay at the Athens Games in 2004 and a gold medallist for 100-metre breaststroke in the 2008 Summer Olympics in Beijing.
The Women's 100m Butterfly at the 2007 World Aquatics Championships took place on 25 March and the evening of 26 March (finals) at the Rod Laver Arena in Melbourne, Australia. 75 swimmers were entered in the event, of which 74 swam.
The Women's 200m Individual Medley at the 2007 World Aquatics Championships took place on 25 March and the evening of 26 March (finals) at the Rod Laver Arena in Melbourne, Australia. 50 swimmers were entered in the event, of which 49 swam.
The Women's 200m Butterfly at the 2007 World Aquatics Championships took place on 28 March and the evening of 29 March (finals) at the Rod Laver Arena in Melbourne, Australia. 57 swimmers were entered in the event, of which 54 swam.
Yuliya Andreyevna Yefimova is a Russian competitive swimmer. She is the Russian record holder in the 200 metre individual medley, 50 metre breaststroke, 100 metre breaststroke, and 200 metre breaststroke. After making her Olympic debut in 2008, she went on to win the bronze medal in the 200 metre breaststroke in 2012, and silver medals in the 100 metre and 200 metre breaststroke in 2016. She is a six-time World Champion, winning the 50 metre breaststroke in 2009 and 2013, the 100 metre breaststroke in 2015, and the 200 metre breaststroke in 2013, 2017, and 2019. In 2019, she became the first woman to win the 200 metre breaststroke at a FINA World Aquatics Championships three times. She is a former world record holder in the long course 50 metre breaststroke. She has won 109 medals, including 48 gold medals, at Swimming World Cups.
Rebecca Soni is an American former competition swimmer and breaststroke specialist who is a six-time Olympic medalist. She is a former world record-holder in the 100-meter breaststroke and the 200-meter breaststroke, and is the first woman to swim the 200-meter breaststroke in under 2 minutes 20 seconds. As a member of the U.S. national team, she held the world record in the 4×100-meter medley relay from 2012 to 2017.
The men's 200 metre butterfly at the 2007 World Aquatics Championships took place on 27 March and on the evening of 28 March (final) at Rod Laver Arena in Melbourne, Australia. 64 swimmers were entered in the event, of which 62 swam.
The Women's 50m Breaststroke at the 2007 World Aquatics Championships took place on 31 March and the evening of 1 April (finals) at the Rod Laver Arena in Melbourne, Australia. 86 swimmers were entered in the event, of which 74 swam.
The Women's 100m Breaststroke at the 2007 World Aquatics Championships took place on 26 March and the evening of 27 March (finals) at the Rod Laver Arena in Melbourne, Australia. 72 swimmers were entered in the event, of which 70 swam.
The Women's 50m Butterfly at the 2007 World Aquatics Championships took place on 30 March and the evening of 31 March (finals) at the Rod Laver Arena in Melbourne, Australia. 99 swimmers were entered in the event, of whom 93 swam.
The Women's 400m Individual Medley (IM) at the 2007 World Aquatics Championships took place on 1 April at the Rod Laver Arena in Melbourne, Australia. As the event was over 200 meters in length, no semifinals were held in it and the top 8 swimmers from the preliminary heats advance directly to the single final heat. 40 swimmers were entered in the event, of which 48 swam.
The Women's 4 × 100 m Medley Relay at the 2007 World Aquatics Championships took place on 31 March 2007 at the Rod Laver Arena in Melbourne, Australia. The top-12 finishers from this race qualified for the event at the 2008 Olympics. 29 teams were entered in the event; all swam.
The men's 200 metre individual medley (IM) at the 2007 World Aquatics Championships took place on 28 March and on the evening of 29 March (final) at Rod Laver Arena in Melbourne, Australia. 79 swimmers were entered in the event, of which 74 swam.
The men's 100 metre butterfly at the 2007 World Aquatics Championships took place on 30 March and on the evening of 31 March (final) at Rod Laver Arena in Melbourne, Australia. 123 swimmers were entered in the event, of which 118 swam.
The men's 200 metre breaststroke at the 2007 World Aquatics Championships took place on 29 March and on the evening of 30 March (final) at Rod Laver Arena in Melbourne, Australia. 85 swimmers were entered in the event, of which 79 swam.
The heats for the Women's 100m Breaststroke race at the 2009 World Championships took place on Monday, 27 July and Tuesday 28 July (final) at the Foro Italico in Rome, Italy.
The women's 200 m butterfly at the 2009 World Championships took place on 29 July and on the evening of 30 July (finals) at the Foro Italico in Rome, Italy.
The men's 200 metre backstroke at the 2007 World Aquatics Championships took place on 29 March and 30 March (final) at Rod Laver Arena in Melbourne, Australia. 57 swimmers were entered in the event, of which 55 swam.
The men's 50 metre breaststroke at the 2007 World Aquatics Championships took place on 27 March and on the evening of 28 March (final) at Rod Laver Arena in Melbourne, Australia. 136 swimmers were entered in the event, of which 127 swam.
The Women's 100 Breaststroke event at the 11th FINA World Aquatics Championships swam 25+26 July 2005 in Montreal, Canada. Preliminary and semifinal heats were swum on 25 July, with the prelims in the morning session and the semis in the evening. The final went the next evening.
Australia 
Great Britain 
USA 
South Africa 
China 
Germany 
Sweden 
South Korea 
Japan 
Austria 
Ukraine 
Poland 
