Jan Šefl
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Jan Šefl
Jan Šefl (born 10 May 1990) is a Czech swimmer. He competed in the men's 50 metre butterfly event at the 2017 World Aquatics Championships The 17th FINA World Championships ( hu, 2017-es úszó-világbajnokság) were held in Budapest, Hungary from 14 to 30 July 2017.
. He represented the Czech Republic in men's 100 metre butterfly event at the 2020 Summer Olympic Games in Tokyo. He holds the men's Czech national record in the event.


References


Extern ...
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Swimming (sport)
Swimming is an individual or team racing sport that requires the use of one's entire body to move through water. The sport takes place in pools or open water (e.g., in a sea or lake). Competitive swimming is one of the most popular Olympic sports, with varied distance events in butterfly, backstroke, breaststroke, freestyle, and individual medley. In addition to these individual events, four swimmers can take part in either a freestyle or medley relay. A medley relay consists of four swimmers who will each swim a different stroke, ordered as backstroke, breaststroke, butterfly and freestyle. Swimming each stroke requires a set of specific techniques; in competition, there are distinct regulations concerning the acceptable form for each individual stroke. There are also regulations on what types of swimsuits, caps, jewelry and injury tape that are allowed at competitions. Although it is possible for competitive swimmers to incur several injuries from the sport, such as te ...
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Swimming At The 2017 World Aquatics Championships – Men's 50 Metre Butterfly
The Men's 50 metre butterfly competition at the 2017 World Championships was held on 23 and 24 July 2017. Records Prior to the competition, the existing world and championship records were as follows. Results Heats The heats were held on 23 July at 10:33. Semifinals The semifinals were held on 23 July at 17:53. Semifinal 1 Semifinal 2 Final The final was held on 24 July at 18:17. References {{DEFAULTSORT:2017 World Aquatics Championships - Men's 50 metre butterfly Men's 50 metre butterfly ...
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2017 World Aquatics Championships
The 17th FINA World Championships ( hu, 2017-es úszó-világbajnokság) were held in Budapest, Hungary from 14 to 30 July 2017.FINA Announces Dates for 2017 World Championships; Masters Worlds to Follow
published by SwimSwam on 17 June 2014.

(Kazan (RUS) and Guadalajara (MEX), next organisers ); posted by the Federation Internationale de Natation (FINA) on 15 July 2011; retrieved 2011-08-01.


Host selection

On 15 July 2011, at the biennial General Congress of

Swimming At The 2020 Summer Olympics – Men's 100 Metre Butterfly
The men's 100 metre butterfly event at the 2020 Summer Olympics was held from 29 to 31 July 2021 at the Tokyo Aquatics Centre. It was the event's fourteenth consecutive appearance, having been held at every edition since 1968. The medals for the competition were presented by Ng Ser Miang, International Olympic Committee, IOC Vice-President, Singapore; and the medalists' bouquets were presented by Dale Neuburger, FINA, FINA Treasurer; United States. Records Prior to this competition, the existing world and Olympic records were as follows. The following records were established during the competition: Qualification The Olympic Qualifying Time for the event is 51.96 seconds. Up to two swimmers per National Olympic Committee (NOC) can automatically qualify by swimming that time at an approved qualification event. The Olympic Selection Time is 53.52 seconds. Up to one swimmer per NOC meeting that time is eligible for selection, allocated by world ranking until the maximum ...
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2020 Summer Olympics
The , officially the and also known as , was an international multi-sport event held from 23 July to 8 August 2021 in Tokyo, Japan, with some preliminary events that began on 21 July. Tokyo was selected as the host city during the 125th IOC Session in Buenos Aires, Argentina, on 7 September 2013. The Games were originally scheduled to take place from 24 July to 9 August 2020, but due to the global COVID-19 pandemic, on 24 March 2020, the event was postponed to 2021, the first such instance in the history of the Olympic Games (previous games had been cancelled but not rescheduled). However, the event retained the ''Tokyo 2020'' branding for marketing purpose.Multiple sources: * * * It was largely held behind closed doors with no public spectators permitted due to the declaration of a state of emergency in the Greater Tokyo Area in response to the pandemic, the first and so far only Olympic Games to be held without official spectators. The Games were the mos ...
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1990 Births
Year 199 ( CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 ''Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, as th ...
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Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ...
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Czech Male Swimmers
Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places *Czech, Łódź Voivodeship, Poland *Czechville, Wisconsin, unincorporated community, United States People * Bronisław Czech (1908–1944), Polish sportsman and artist * Danuta Czech (1922–2004), Polish Holocaust historian * Hermann Czech (born 1936), Austrian architect * Mirosław Czech (born 1968), Polish politician and journalist of Ukrainian origin * Zbigniew Czech (born 1970), Polish diplomat See also * Čech, a surname * Czech lands * Czechoslovakia * List of Czechs * * * Czechoslovak (other) * Czech Republic (other) * Czechia (other) Czechia is the official short form name of the Czech Republic. Czechia may also refer to: * Historical Czech lands *Czechoslovakia (1918–1993) *Czech Socialist Repu ...
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Place Of Birth Missing (living People)
Place may refer to: Geography * Place (United States Census Bureau), defined as any concentration of population ** Census-designated place, a populated area lacking its own municipal government * "Place", a type of street or road name ** Often implies a dead end (street) or cul-de-sac * Place, based on the Cornish word "plas" meaning mansion * Place, a populated place, an area of human settlement ** Incorporated place (see municipal corporation), a populated area with its own municipal government * Location (geography), an area with definite or indefinite boundaries or a portion of space which has a name in an area Placenames * Placé, a commune in Pays de la Loire, Paris, France * Plače, a small settlement in Slovenia * Place (Mysia), a town of ancient Mysia, Anatolia, now in Turkey * Place, New Hampshire, a location in the United States * Place House, a 16th-century mansion largely remodelled in the 19th century, in Fowey, Cornwall * Place House, a 19th-century mansion o ...
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Male Butterfly Swimmers
Male (symbol: ♂) is the sex of an organism that produces the gamete (sex cell) known as sperm, which fuses with the larger female gamete, or ovum, in the process of fertilization. A male organism cannot reproduce sexually without access to at least one ovum from a female, but some organisms can reproduce both sexually and asexually. Most male mammals, including male humans, have a Y chromosome, which codes for the production of larger amounts of testosterone to develop male reproductive organs. Not all species share a common sex-determination system. In most animals, including humans, sex is determined genetically; however, species such as ''Cymothoa exigua'' change sex depending on the number of females present in the vicinity. In humans, the word ''male'' can also be used to refer to gender in the social sense of gender role or gender identity. Overview The existence of separate sexes has evolved independently at different times and in different lineages, an example of ...
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Swimmers At The 2020 Summer Olympics
Swimming is the self-propulsion of a person through water, or other liquid, usually for recreation, sport, exercise, or survival. Locomotion is achieved through coordinated movement of the limbs and the body to achieve hydrodynamic thrust that results in directional motion. Humans can hold their breath underwater and undertake rudimentary locomotive swimming within weeks of birth, as a survival response. Swimming is consistently among the top public recreational activities, and in some countries, swimming lessons are a compulsory part of the educational curriculum. As a formalized sport, swimming is featured in a range of local, national, and international competitions, including every modern Swimming at the Summer Olympics, Summer Olympics. Swimming involves repeated motions known as swimming stroke, strokes in order to propel the body forward. While the front crawl, also known as Freestyle swimming, freestyle, is widely regarded as the fastest out of four primary strokes, oth ...
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