Krisztina Egerszegi (Hungarian pronunciation: [ˈkristinɒ ˈɛɡɛrsɛɡi]; born 16 August 1974) is a Hungarian former world record holding swimmer and one of the greatest Hungarian Olympic champions of the modern era. She is a three-time Olympian (1988, 1992 and 1996) and five time Olympic champion; and one of three individuals (Dawn Fraser and Michael Phelps being the other two) to have ever won the same swimming event at three consecutive Summer Olympics. She is the most successful and greatest individual female swimmer ever, having won five individual Olympic gold medals, the only female swimmer to do so. Katie Ledecky of the United States matched her total of 5 Olympic gold medals, winning 1 individual gold in London 2012, 3 individual ones and one team gold in Rio in 2016.

Egerszegi held the world record in the long course 200 m backstroke for almost 17 years.

Egerszegi made her international debut at the 1987 European Aquatics Championships at the age of 13, coming fourth in the 200 m backstroke and fifth in the 100 m backstroke. At the 1988 Summer Olympics she won silver medal in the 100 m backstroke and became Olympic champion in the 200 m backstroke. At the age of 14 years and 41 days she became the youngest-ever female Olympic champion in swimming. This youth record was broken in 1992 by Kyoko Iwasaki of Japan, who won a gold medal in the 200 meter breaststroke at the 1992 Barcelona Olympic Games at the age of 14 years and six days. At the end of 1988, she was the top-ranked swimmer in 200 m backstroke in the world ranking as well as she became the Swimmer of the Year and the Best Female Athlete of the Year in Hungary.

At the 1989 European Aquatics Championships she competed in three events adding the 400 m medley to the 100 m and 200 m backstroke, winning silver medal in all three events despite she struggled with a strong cold during the entire Championships. At the end of that year, she topped again the world ranking in 200 m backstroke and she was selected again the Best Female Athlete of the Year in Hungary.

...
Wikipedia