2010 FINA World Swimming Championships (25m) – Records
Encyclopedia
The following world and championship records swum at the 2010 Short Course Worlds, which were held December 15-19, 2010 in Dubai, United Arab Emirates
Dubai
Dubai is a city and emirate in the United Arab Emirates . The emirate is located south of the Persian Gulf on the Arabian Peninsula and has the largest population with the second-largest land territory by area of all the emirates, after Abu Dhabi...

.

World records

Date Event Time Name Nation
December 15 Women's 4×200 m freestyle relay final
2010 FINA World Swimming Championships (25 m) – Women's 4 x 200 metre freestyle relay
The women's 4×200 metre freestyle relay event at the 2010 FINA World Swimming Championships took place 15 December. The heats and final were held on 15 December.-Records:...

 
7:35.94 Chen Qian
Chen Qian (swimmer)
-External links:*Swim Rankings *...

 (1:54.73)
Tang Yi
Tang Yi
Tang Yi is a Chinese swimmer, who competed for Team China at the 2008 Summer Olympics and 2010 Summer Youth Olympics.She has won six gold medals at the 2010 Youth Olympics in Singapore.-Major achievements:...

 (1:53.54)
Liu Jing (1:53.59)
Zhu Qianwei
Zhu Qianwei
Zhu Qianwei is a female Chinese swimmer, who competed for Team China at the 2008 Summer Olympics.-References:*http://2008teamchina.olympic.cn/index.php/personview/personsen/5357...

 (1:54.08)
December 16 Men's 400 m individual medley final
2010 FINA World Swimming Championships (25 m) – Men's 400 metre individual medley
The men's 400 metre individual medley event at the 2010 FINA World Swimming Championships took place 16 December. The heats and final were held on 16 December.-Records:...

 
3:55.50 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

December 16 Men's 4×200 m freestyle relay final
2010 FINA World Swimming Championships (25 m) – Men's 4 x 200 metre freestyle relay
The men's 4×200 metre freestyle relay event at the 2010 FINA World Swimming Championships took place 16 December. The heats and final were held on 16 December.-Records:...

 
6:49.04 Nikita Lobintsev
Nikita Lobintsev
Nikita Konstantinovich Lobintsev is a freestyle swimmer from Russia, who won the silver medal in the 4x200m freestyle relay at the 2008 Summer Olympics.-External links:*...

 (1:42.10)
Danila Izotov
Danila Izotov
Danila Sergeyevich Izotov is a Russian freestyle swimmer. Izotov won a silver medal in the 4x200 m freestyle relay at the 2008 Summer Olympics.-External links:*...

 (1:42.15)
Evgeny Lagunov
Evgeny Lagunov
Yevgeny Alexandrovich Lagunov, first name sometimes spelled "Evgeny" is a freestyle swimmer from Russia, who won the bronze medal in the 100 m freestyle at the European Short Course Swimming Championships 2005 in Triest, Italy. He also competed in the 2004 Summer Olympics for his native...

 (1:42.32)
Alexander Sukhorukov
Alexander Sukhorukov
Alexander Nikolayevich Sukhorukov is a freestyle swimmer from Russia, who won the silver medal in the 4x200m freestyle relay at the 2008 Summer Olympics.-External links:*...

 (1:42.47)
December 17 Men's 200 m individual medley final
2010 FINA World Swimming Championships (25 m) – Men's 200 metre individual medley
The men's 200 metre individual medley event at the 2010 FINA World Swimming Championships took place 17 December. The heats and final were held on 17 December.-Records:...

 
1:50.08 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...


Championship Records

Date Event Time Name(s) Nation
December 15 Men's 200 m freestyle heats
2010 FINA World Swimming Championships (25 m) – Men's 200 metre freestyle
The men's 200 metre freestyle event at the 2010 FINA World Swimming Championships will take place 15 December. The heats and final took place on 15 December.-Records:...

 
1:42.38 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

 
December 15 Men's 100 m breaststroke heats
2010 FINA World Swimming Championships (25 m) – Men's 100 metre breaststroke
The men's 100 metre breaststroke event at the 2010 FINA World Swimming Championships took place 15 December – 16 December. The heats and semifinals were held on 15 December...

 
57.74 Fabio Scozzoli
Fabio Scozzoli
-External links:* *...

 
December 15 Men's 4×100 m freestyle relay heats
2010 FINA World Swimming Championships (25 m) – Men's 4 x 100 metre freestyle relay
The men's 4×100 metre freestyle relay event at the 2010 FINA World Swimming Championships took place 15 December. The heats and final were held on 15 December.-Records:...

 
3:07.78 Evgeny Lagunov
Evgeny Lagunov
Yevgeny Alexandrovich Lagunov, first name sometimes spelled "Evgeny" is a freestyle swimmer from Russia, who won the bronze medal in the 100 m freestyle at the European Short Course Swimming Championships 2005 in Triest, Italy. He also competed in the 2004 Summer Olympics for his native...

 (46.89)
Alexander Sukhorukov
Alexander Sukhorukov
Alexander Nikolayevich Sukhorukov is a freestyle swimmer from Russia, who won the silver medal in the 4x200m freestyle relay at the 2008 Summer Olympics.-External links:*...

 (46.82)
Nikita Konovalov (47.38)
Sergey Fesikov
Sergey Fesikov
Sergey Vasilyevich Fesikov , is a Russian swimmer from St. Petersburg..- References :...

 (46.69)
December 15 Men's 200 m freestyle final
2010 FINA World Swimming Championships (25 m) – Men's 200 metre freestyle
The men's 200 metre freestyle event at the 2010 FINA World Swimming Championships will take place 15 December. The heats and final took place on 15 December.-Records:...

 
1:41.08 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

 
December 15 Men's 100 m backstroke semifinals
2010 FINA World Swimming Championships (25 m) – Men's 100 metre backstroke
The men's 100 metre backstroke event at the 2010 FINA World Swimming Championships was held 15 December – 16 December. The heats and semifinals were held on 15 December...

 
49.62 Stanislav Donets
Stanislav Donets
Stanislav Donets is a Russian swimmer from Dimitrovgrad. He was the world record holder for the 100m backstroke .-References:...

 
December 15 Women's 200 m butterfly final
2010 FINA World Swimming Championships (25 m) – Women's 200 metre butterfly
The women's 200 metre butterfly event at the 2010 FINA World Swimming Championships took place 15 December. The heats and final were held on 15 December.-Records:Prior to the competition, the existing world and championship records were as follows....

 
2:03.59 Mireia Belmonte 
December 15 Men's 100 m breaststroke semifinals
2010 FINA World Swimming Championships (25 m) – Men's 100 metre breaststroke
The men's 100 metre breaststroke event at the 2010 FINA World Swimming Championships took place 15 December – 16 December. The heats and semifinals were held on 15 December...

 
57.18 Mihail Alexandrov 
December 15 Women's 100 m backstroke semifinals
2010 FINA World Swimming Championships (25 m) – Women's 100 metre backstroke
The women's 100 metre backstroke event at the 2010 FINA World Swimming Championships took place 15 December – 16 December. The heats and semifinals were held on 15 December...

 
56.58 Gao Chang
Gao Chang
Gao Chang is a female Chinese swimmer, who competed at the 2004 Summer Olympics and who was a part of China's 2008 Olympic Team...

 
December 15 Women's 400 m individual medley final
2010 FINA World Swimming Championships (25 m) – Women's 400 metre individual medley
The women's 400 metre individual medley event at the 2010 FINA World Swimming Championships took place 15 December. The heats and final were held on 15 December.-Records:...

 
4:24.21 Mireia Belmonte 
December 15 Men's 4×100 m freestyle relay final
2010 FINA World Swimming Championships (25 m) – Men's 4 x 100 metre freestyle relay
The men's 4×100 metre freestyle relay event at the 2010 FINA World Swimming Championships took place 15 December. The heats and final were held on 15 December.-Records:...

 
3:04.78 Alain Bernard
Alain Bernard
Alain Bernard is a French swimmer from Aubagne, Bouches-du-Rhône.Bernard won three medals in the 2008 Summer Olympics. After competing on the silver medal-winning French 4×100 m relay team, Bernard won the gold medal in the men's 100 m freestyle event.He held the same 100 m...

 (46.78)
Frédérick Bousquet
Frédérick Bousquet
Frédérick Bousquet is a freestyle and butterfly swimmer from France. He was the holder of the world record in the 50 m freestyle in a time of 20.94 in long course, set on April 26, 2009 at the final of the French Championships...

 (45.92)
Fabien Gilot
Fabien Gilot
Fabien Gilot is an Olympic swimmer from France. He swam for France at the 2008 Olympics, where he was part of France's silver medal winning 4×100m freestyle relay....

 (45.75)
Yannick Agnel
Yannick Agnel
Yannick Agnel is a French swimmer and national record holder in the 200 and 400 m freestyle . At the 2010 European Aquatics Championships, Agnel won three medals, including gold in the 400 m freestyle...

 (46.33)
December 15 Women's 4×200 m freestyle relay final
2010 FINA World Swimming Championships (25 m) – Women's 4 x 200 metre freestyle relay
The women's 4×200 metre freestyle relay event at the 2010 FINA World Swimming Championships took place 15 December. The heats and final were held on 15 December.-Records:...


(Women's 200 metre freestyle)
1:53.17 Camille Muffat
Camille Muffat
Camille Muffat is an Olympic and National Record holding swimmer from France. She swam for France at the 2008 Olympics....

 
December 16 Men's 400 m individual medley heats
2010 FINA World Swimming Championships (25 m) – Men's 400 metre individual medley
The men's 400 metre individual medley event at the 2010 FINA World Swimming Championships took place 16 December. The heats and final were held on 16 December.-Records:...

 
4:01.76 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

 
December 16 Women's 50 m butterfly heats
2010 FINA World Swimming Championships (25 m) – Women's 50 metre butterfly
The women's 50 metre butterfly event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
25.23 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...

 
December 16 Women's 100 m individual medley heats
2010 FINA World Swimming Championships (25 m) – Women's 100 metre individual medley
The women's 100 metre individual medley event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
59.14 Ariana Kukors
Ariana Kukors
Ariana Kukors is an American swimmer. She currently holds the world record in the 200-meter individual medley ....

 
December 16 Men's 100 m backstroke final
2010 FINA World Swimming Championships (25 m) – Men's 100 metre backstroke
The men's 100 metre backstroke event at the 2010 FINA World Swimming Championships was held 15 December – 16 December. The heats and semifinals were held on 15 December...

 
49.07 Stanislav Donets
Stanislav Donets
Stanislav Donets is a Russian swimmer from Dimitrovgrad. He was the world record holder for the 100m backstroke .-References:...

December 16 Women's 50 m butterfly semifinals
2010 FINA World Swimming Championships (25 m) – Women's 50 metre butterfly
The women's 50 metre butterfly event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
25.20 Felicity Galvez
Felicity Galvez
Felicity Madeline Galvez OAM is an Australian swimmer and two time Olympic gold medalist from Melbourne, Victoria. She was educated at Runnymede College, in Madrid.- Career :...

December 16 Women's 50 m butterfly semifinals
2010 FINA World Swimming Championships (25 m) – Women's 50 metre butterfly
The women's 50 metre butterfly event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
25.19 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...

December 16 Men's 50 m freestyle semifinals
2010 FINA World Swimming Championships (25 m) – Men's 50 metre freestyle
The men's 50 metre freestyle event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
20.61 César Cielo Filho
December 16 Women's 100 m backstroke final
2010 FINA World Swimming Championships (25 m) – Women's 100 metre backstroke
The women's 100 metre backstroke event at the 2010 FINA World Swimming Championships took place 15 December – 16 December. The heats and semifinals were held on 15 December...

 
56.08 Natalie Coughlin
Natalie Coughlin
Natalie Anne Coughlin is an American swimmer and eleven-time Olympic medallist.At the 2008 Summer Olympics, Coughlin became the first American female athlete in modern Olympic history to win six medals in one Olympics and the first woman ever to win a 100 m backstroke gold in two consecutive...

December 16 Men's 100 m breaststroke final
2010 FINA World Swimming Championships (25 m) – Men's 100 metre breaststroke
The men's 100 metre breaststroke event at the 2010 FINA World Swimming Championships took place 15 December – 16 December. The heats and semifinals were held on 15 December...

 
56.80 Cameron van der Burgh
Cameron van der Burgh
Cameron van der Burgh is a South African swimmer.He is Africa's first home-trained world record holder and the youngest at the age of 20. He trains with Dirk Lange and is based in Pretoria. He has represented South Africa at the 2008 Summer Olympics and has won numerous World Championship medals...

December 16 Women's 100 m individual medley semifinals
2010 FINA World Swimming Championships (25 m) – Women's 100 metre individual medley
The women's 100 metre individual medley event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
58.65 Ariana Kukors
Ariana Kukors
Ariana Kukors is an American swimmer. She currently holds the world record in the 200-meter individual medley ....

 
December 17 Men's 50 m backstroke heats
2010 FINA World Swimming Championships (25 m) – Men's 50 metre backstroke
The men's 50 metre backstroke event at the 2010 FINA World Swimming Championships will take place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
23.24 Stanislav Donets
Stanislav Donets
Stanislav Donets is a Russian swimmer from Dimitrovgrad. He was the world record holder for the 100m backstroke .-References:...

 
December 17 Men's 200 m breaststroke heats
2010 FINA World Swimming Championships (25 m) – Men's 200 metre breaststroke
The men's 200 metre breaststroke event at the 2010 FINA World Swimming Championships took place 17 December. The heats and final were held on 17 December.-Records:Prior to the competition, the existing world and championship records were as follows....

 
2:04.46 Dániel Gyurta
Dániel Gyurta
Dániel Gyurta is a Hungarian swimmer and former Olympic record holder in the 200m breaststroke set on August 12, 2008...

 
December 17 Women's 4×100 m medley relay heats
2010 FINA World Swimming Championships (25 m) – Women's 4 x 100 metre medley relay
The women's 4×100 metre medley relay event at the 2010 FINA World Swimming Championships took place 17 December. The heats and final were held on 17 December.-Records:...

 
3:50.69 Gao Chang
Gao Chang
Gao Chang is a female Chinese swimmer, who competed at the 2004 Summer Olympics and who was a part of China's 2008 Olympic Team...

 (56.41)
Zhao Jin (1:04.72)
Guo Fan (57.44)
Li Zhesi
Li Zhesi
Li Zhesi is a female Chinese swimmer, who competed for Team China at the 2008 Summer Olympics.- Major achievements :*2007 National Intercity Games – 1st; 50m free...

 (52.12)
December 17 Men's 50 m backstroke semifinals
2010 FINA World Swimming Championships (25 m) – Men's 50 metre backstroke
The men's 50 metre backstroke event at the 2010 FINA World Swimming Championships will take place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
23.02 Stanislav Donets
Stanislav Donets
Stanislav Donets is a Russian swimmer from Dimitrovgrad. He was the world record holder for the 100m backstroke .-References:...

 
December 17 Women's 100 m freestyle final
2010 FINA World Swimming Championships (25 m) – Women's 100 metre freestyle
The women's 100 metre freestyle event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
51.45 Ranomi Kromowidjojo
Ranomi Kromowidjojo
Ranomi Kromowidjojo is a Dutch swimmer who mainly specializes in freestyle but also has potential in backstroke and butterfly events. As part of the Dutch team, she holds the world records in the 4×50 m and 4×200 m freestyle relays on short course , and 4×100 m freestyle relay on long course...

 
December 17 Men's 50 m butterfly semifinals
2010 FINA World Swimming Championships (25 m) – Men's 50 metre butterfly
The men's 50 metre butterfly event at the 2010 FINA World Swimming Championships took place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
22.57 Steffen Deibler
Steffen Deibler
Steffen Deibler, is a German swimmer from Biberach an der Riß. He is the current World record holder for the 50 m butterfly .- Development :...

 
December 17 Men's 200 m breaststroke final
2010 FINA World Swimming Championships (25 m) – Men's 200 metre breaststroke
The men's 200 metre breaststroke event at the 2010 FINA World Swimming Championships took place 17 December. The heats and final were held on 17 December.-Records:Prior to the competition, the existing world and championship records were as follows....

 
2:03.12 Naoya Tomita 
December 17 Women's 50 m butterfly final
2010 FINA World Swimming Championships (25 m) – Women's 50 metre butterfly
The women's 50 metre butterfly event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
24.87 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...

 
December 17 Women's 100 m breaststroke semifinals
2010 FINA World Swimming Championships (25 m) – Women's 100 metre breaststroke
The women's 100 metre breaststroke event at the 2010 FINA World Swimming Championships took place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
1:04.17 Rebecca Soni
Rebecca Soni
Rebecca Soni is an American breaststroke swimmer and three-time Olympic medalist. She currently holds the world record in the 100 and 200 m breaststroke and is a former world-record holder in the 100 and 200 m breaststroke .Soni has won a total of nineteen medals in major...

 
December 17 Women's 400 m freestyle final
2010 FINA World Swimming Championships (25 m) – Women's 400 metre freestyle
The women's 400 metre freestyle event at the 2010 FINA World Swimming Championships took place 17 December. The heats and final were held on 17 December.-Records:Prior to the competition, the existing world and championship records were as follows....

 
3:57.07 Katie Hoff
Katie Hoff
Kathryn "Katie" Elise Hoff is an American swimmer. Hoff is strongest in the 200 and 400 meter individual medley, though she is a very capable swimmer in many events, ranging from the four 200 meter events to the 800 meter freestyle...

 
December 17 Men's 50 m freestyle final
2010 FINA World Swimming Championships (25 m) – Men's 50 metre freestyle
The men's 50 metre freestyle event at the 2010 FINA World Swimming Championships took place 16 December – 17 December. The heats and semifinals were held on 16 December...

 
20.51 César Cielo Filho
December 17 Women's 4×100 m medley relay final
2010 FINA World Swimming Championships (25 m) – Women's 4 x 100 metre medley relay
The women's 4×100 metre medley relay event at the 2010 FINA World Swimming Championships took place 17 December. The heats and final were held on 17 December.-Records:...

 
3:48.29 Zhao Jing
Zhao Jing (swimmer)
Zhao Jing is a female Chinese swimmer, who competed for Team China at the 2008 Summer Olympics.-Records:*2006 Asian Championships - 28.50, 50 m back...

 (56.52)
Zhao Jin (1:04.20)
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 ....

 (55.80)
Tang Yi
Tang Yi
Tang Yi is a Chinese swimmer, who competed for Team China at the 2008 Summer Olympics and 2010 Summer Youth Olympics.She has won six gold medals at the 2010 Youth Olympics in Singapore.-Major achievements:...

 (51.77)
December 18 Men's 100 m freestyle heats
2010 FINA World Swimming Championships (25 m) – Men's 100 metre freestyle
The men's 100 metre freestyle event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
46.62 Fabien Gilot
Fabien Gilot
Fabien Gilot is an Olympic swimmer from France. He swam for France at the 2008 Olympics, where he was part of France's silver medal winning 4×100m freestyle relay....

December 18 Men's 100 m breaststroke heats
2010 FINA World Swimming Championships (25 m) – Men's 100 metre breaststroke
The men's 100 metre breaststroke event at the 2010 FINA World Swimming Championships took place 15 December – 16 December. The heats and semifinals were held on 15 December...

 
26.14 Cameron van der Burgh
Cameron van der Burgh
Cameron van der Burgh is a South African swimmer.He is Africa's first home-trained world record holder and the youngest at the age of 20. He trains with Dirk Lange and is based in Pretoria. He has represented South Africa at the 2008 Summer Olympics and has won numerous World Championship medals...

December 18 Women's 100 m breaststroke final
2010 FINA World Swimming Championships (25 m) – Women's 100 metre breaststroke
The women's 100 metre breaststroke event at the 2010 FINA World Swimming Championships took place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
1:03.98 Rebecca Soni
Rebecca Soni
Rebecca Soni is an American breaststroke swimmer and three-time Olympic medalist. She currently holds the world record in the 100 and 200 m breaststroke and is a former world-record holder in the 100 and 200 m breaststroke .Soni has won a total of nineteen medals in major...

December 18 Men's 50 m backstroke final
2010 FINA World Swimming Championships (25 m) – Men's 50 metre backstroke
The men's 50 metre backstroke event at the 2010 FINA World Swimming Championships will take place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
22.93 Stanislav Donets
Stanislav Donets
Stanislav Donets is a Russian swimmer from Dimitrovgrad. He was the world record holder for the 100m backstroke .-References:...

December 18 Women's 50 m backstroke semifinals
2010 FINA World Swimming Championships (25 m) – Women's 50 metre backstroke
The women's 50 metre backstroke event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...


(Equalled championship record)
26.37 Zhao Jing
Zhao Jing (swimmer)
Zhao Jing is a female Chinese swimmer, who competed for Team China at the 2008 Summer Olympics.-Records:*2006 Asian Championships - 28.50, 50 m back...

December 18 Men's 100 m freestyle semifinals
2010 FINA World Swimming Championships (25 m) – Men's 100 metre freestyle
The men's 100 metre freestyle event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
46.01 César Cielo Filho
December 18 Men's 50 m butterfly final
2010 FINA World Swimming Championships (25 m) – Men's 50 metre butterfly
The men's 50 metre butterfly event at the 2010 FINA World Swimming Championships took place 17 December – 18 December. The heats and semifinals were held on 17 December...

 
22.40 Albert Subirats
Albert Subirats
Albert Subirats Altes is a 2-time Olympic and national record holding swimmer from Venezuela. He represented his homeland at the 2004 and 2008 Olympics...

December 18 Men's 100 m individual medley semifinals
2010 FINA World Swimming Championships (25 m) – Men's 100 metre individual medley
The men's 100 metre individual medley event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
50.81 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

December 18 Women's 200 m individual medley final
2010 FINA World Swimming Championships (25 m) – Women's 200 metre individual medley
The women's 200 metre individual medley event at the 2010 FINA World Swimming Championships took place 18 December. The heats and final were held on 18 December.-Records:...

 
2:05.73 Mireia Belmonte
December 18 Women's 4×100 m freestyle relay final
2010 FINA World Swimming Championships (25 m) – Women's 4 x 100 metre freestyle relay
The women's 4×100 metre freestyle relay event at the 2010 FINA World Swimming Championships will take place 18 December. The heats and final were held on 18 December.-Records:...

 
3:28.54 Femke Heemskerk
Femke Heemskerk
Frederike Johanna Maria "Femke" Heemskerk is a Dutch swimmer who mainly specializes in freestyle, but also has a strong backstroke and medley....

 (52.33)
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...

 (52.47)
Hinkelien Schreuder
Hinkelien Schreuder
Hinkelien Schreuder is a butterfly, freestyle and backstroke swimmer from The Netherlands, who also competed in the medley events...

 (52.32)
Ranomi Kromowidjojo
Ranomi Kromowidjojo
Ranomi Kromowidjojo is a Dutch swimmer who mainly specializes in freestyle but also has potential in backstroke and butterfly events. As part of the Dutch team, she holds the world records in the 4×50 m and 4×200 m freestyle relays on short course , and 4×100 m freestyle relay on long course...

 (51.42)
December 19 Women's 200 m breaststroke heats
2010 FINA World Swimming Championships (25 m) – Women's 200 metre breaststroke
The women's 200 metre breaststroke event at the 2010 FINA World Swimming Championships took place 19 December. The heats and final were held on 19 December.-Records:...

 
2:18.66 Rebecca Soni
Rebecca Soni
Rebecca Soni is an American breaststroke swimmer and three-time Olympic medalist. She currently holds the world record in the 100 and 200 m breaststroke and is a former world-record holder in the 100 and 200 m breaststroke .Soni has won a total of nineteen medals in major...

December 19 Men's 100 m freestyle final
2010 FINA World Swimming Championships (25 m) – Men's 100 metre freestyle
The men's 100 metre freestyle event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
45.74 César Cielo Filho
December 19 Women's 50 m backstroke final
2010 FINA World Swimming Championships (25 m) – Women's 50 metre backstroke
The women's 50 metre backstroke event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
26.27 Zhao Jing
Zhao Jing (swimmer)
Zhao Jing is a female Chinese swimmer, who competed for Team China at the 2008 Summer Olympics.-Records:*2006 Asian Championships - 28.50, 50 m back...

December 19 Men's 200 m backstroke final
2010 FINA World Swimming Championships (25 m) – Men's 200 metre backstroke
The men's 200 metre backstroke event at the 2010 FINA World Swimming Championships took place 19 December. The heats and final were held on 19 December.-Records:Prior to the competition, the existing world and championship records were as follows....

 
1:46.68 Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

December 19 Women's 200 m breaststroke final
2010 FINA World Swimming Championships (25 m) – Women's 200 metre breaststroke
The women's 200 metre breaststroke event at the 2010 FINA World Swimming Championships took place 19 December. The heats and final were held on 19 December.-Records:...

 
2:16.39 Rebecca Soni
Rebecca Soni
Rebecca Soni is an American breaststroke swimmer and three-time Olympic medalist. She currently holds the world record in the 100 and 200 m breaststroke and is a former world-record holder in the 100 and 200 m breaststroke .Soni has won a total of nineteen medals in major...

December 19 Women's 100 m butterfly final
2010 FINA World Swimming Championships (25 m) – Women's 100 metre butterfly
The women's 100 metre butterfly event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
55.43 Felicity Galvez
Felicity Galvez
Felicity Madeline Galvez OAM is an Australian swimmer and two time Olympic gold medalist from Melbourne, Victoria. She was educated at Runnymede College, in Madrid.- Career :...

December 19 Men's 50 m breaststroke final
2010 FINA World Swimming Championships (25 m) – Men's 50 metre breaststroke
The men's 50 metre breaststroke event at the 2010 FINA World Swimming Championships took place 18 December – 19 December. The heats and semifinals were held on 18 December...

 
25.95 Felipe Silva
December 19 Women's 200 m freestyle final
2010 FINA World Swimming Championships (25 m) – Women's 200 metre freestyle
The women's 200 metre freestyle event at the 2010 FINA World Swimming Championships took place 19 December. The heats and final were held on 19 December.-Records:Prior to the competition, the existing world and championship records were as follows....

 
1:52.29 Camille Muffat
Camille Muffat
Camille Muffat is an Olympic and National Record holding swimmer from France. She swam for France at the 2008 Olympics....

December 19 Men's 4×100 m medley relay final
2010 FINA World Swimming Championships (25 m) – Men's 4 x 100 metre medley relay
The men's 4×100 metre medley relay event at the 2010 FINA World Swimming Championships took place 19 December. The heats and final were held on 19 December....


(Men's 100 metre backstroke)
48.95 Stanislav Donets
Stanislav Donets
Stanislav Donets is a Russian swimmer from Dimitrovgrad. He was the world record holder for the 100m backstroke .-References:...

 
December 19 Men's 4×100 m medley relay final
2010 FINA World Swimming Championships (25 m) – Men's 4 x 100 metre medley relay
The men's 4×100 metre medley relay event at the 2010 FINA World Swimming Championships took place 19 December. The heats and final were held on 19 December....

 
3:20.99 Nick Thoman
Nick Thoman
Nicholas Thoman is an American backstroke swimmer. He currently holds the world record in the 100-meter backstroke ....

 (49.88)
Mihail Alexandrov (56.52)
Ryan Lochte
Ryan Lochte
Ryan Steven Lochte is an American swimmer and a six-time Olympic medalist . As part of the American team, he holds the world record in the 4×200-meter freestyle relay...

 (49.17)
Garrett Weber-Gale
Garrett Weber-Gale
Garrett Weber-Gale is an American Olympic swimmer who won two gold medals in the 2008 Beijing Olympics.-Early life:Weber-Gale is Jewish, and was born in Stevens Point, Wisconsin. He competed for the University of Texas from 2003–07...

(45.42)


It is also possible for the swimmers in the first leg of the relays to break records. In the final of the women's 4×200 metre freestyle relay, Camille Muffat of France broke the championship record in the 200 metre freestyle. In the men's 4×100 metre medley relay, Russian swimmer Stanislav Donets broke the championship record in the 100 metre backstroke. Split times for swimmers not swimming the first leg are ineligible because the incoming swimmer can lean over in front of the blocks and be diving as the preceding swimmer is coming in, whereas the leadoff swimmer is timed from a stationary start.
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