Katie Ledecky

Kathleen Genevieve Ledecky ( lə-DEK-ee; born March 17, 1997) is an American competitive swimmer. She is the most decorated female swimmer in history and the most decorated American woman in Olympic history, with a total of 14 Olympic medals, including nine golds. She is regarded as the greatest female swimmer of all time.

Ledecky has won a record 18 individual gold medals at the World Aquatics Championships, and is the world record holder in the women's 800- and 1500-meter freestyle long course and 1500-meter freestyle short course, as well as the former world record holder in the women's 400-meter freestyle (long course) and 800-meter freestyle (short course). In her international debut at the 2012 London Olympic Games as a 15-year-old, Ledecky unexpectedly won the gold medal in the women's 800-metre freestyle. Four years later, she left Rio de Janeiro as the most decorated female athlete of the 2016 Olympic Games, with four gold medals, one silver medal, and two world records.

At the 2020 Olympic Games, Ledecky emerged as the most decorated U.S. female athlete and became the first American female swimmer to win an individual event in three straight Olympiads. In 2025, she won gold in the 800 meter World Championship, becoming the first swimmer—male or female—to win seven World Championship gold medals in the same event. In total, she has won 54 medals (40 golds, 11 silvers, and 3 bronzes) in major international competitions, spanning the Summer Olympics, World Championships, and Pan Pacific Championships. During her career, she has broken 17 world records.

Ledecky's success has earned her Swimming World's Female World Swimmer of the Year a record five times. Ledecky was also named Associated Press Female Athlete of the Year in 2017 and 2022, international female Champion of Champions by L'Équipe in 2014 and 2017, United States Olympic Committee Female Athlete of the Year in 2013, 2016 and 2017, Sportswoman of the Year by the Women's Sports Foundation in 2017, and the ESPY Best Female Athlete in 2022. In 2024, she was awarded the Presidential Medal of Freedom by President Joe Biden.

Early life, swimming, and education

Ledecky was born in Washington, D.C. and raised in the suburb of Bethesda, Maryland, the daughter of Mary Gen (née Hagan) and David Ledecky. Her Czech-born paternal grandfather Jaromír Ledecky arrived in New York City on September 8, 1947, as a student. He later became an economist and married an Ashkenazi Jewish woman named Berta Ruth Greenwald in Brooklyn, New York, on December 30, 1956. Through her paternal grandmother, Ledecky has relatives who were murdered in the Holocaust. Ledecky's mother is of Irish descent. She was raised Catholic and continues to practice the faith, often praying the Hail Mary before her races. Her uncle Jon Ledecky is a businessman and a co-owner of the NHL team New York Islanders.

Ledecky began swimming at the age of six under the influence of her older brother, Michael, and her mother, who swam for the University of New Mexico. In Bethesda, she attended Little Flower School through eighth grade and graduated from Stone Ridge School of the Sacred Heart in 2015. During her high-school swimming career, Ledecky twice set the American and US Open record in the 500-yard freestyle, and she twice set the national high-school record in the 200-yard freestyle.

During the summers prior to 2012, she swam for Palisades Swim Team in Cabin John, Maryland. During the summer of 2012, she trained with the Nation's Capital Swim Club (formerly the Curl Burke Swim Club) under coach Yuri Suguiyama. Following Suguiyama's departure to coach for the University of California, Berkeley, she continued to train with the Nation's Capital Swim Club under coach Bruce Gemmell through the 2016 Summer Olympics. Ledecky accepted an athletic scholarship to Stanford University, where she swam for coach Greg Meehan's Stanford Cardinal women's swimming team.

In December 2016, Ledecky was chosen as one of the sponsors of the US Navy aircraft carrier USS Enterprise alongside Olympic gold medal-winning gymnast Simone Biles. They were the first Olympians to be given this honor.

In December 2020, she completed a Bachelor of Arts in psychology and minor in political science from Stanford University, and graduated in June 2021.

Swimming career

2012

US Olympic Trials

At the 2012 United States Olympic trials in Omaha, Nebraska (her first senior national competition), Ledecky made the Olympic team by placing first in the 800-meter freestyle with a time of 8:19.78, which was over two seconds ahead of second-place finisher Kate Ziegler. In Omaha, Ledecky also placed third in the 400-meter freestyle (4:05.00) and ninth in the 200-meter freestyle (1:58.66). Her third-place finish in the 400-meter freestyle was the fastest time ever swum by a 15- to 16-year-old American. At 15 years, 4 months, and 10 days, she was the youngest American participant at the 2012 Olympic Games.

Summer Olympic Games

At the 2012 Summer Olympics in London, Ledecky qualified to swim in the final of the 800-meter freestyle by placing third overall in the heats with a time of 8:23.84. In the final, Ledecky stunned the field, winning gold by more than four seconds, with a time of 8:14.63, the then second-fastest effort of all time just behind Rebecca Adlington's world record of 8:14.10 set in 2008. In addition, she broke Janet Evans' American record of 8:16.22 that had stood since 1989. In the final, Ledecky went out hard and, by the 200-meter mark, she had already established an almost body-length lead. Her 400-meter split was 4:04.34, a personal best for Ledecky in that distance, and would have placed fifth in the individual 400-meter freestyle. At the 750-meter mark, Ledecky was 3.42 seconds ahead of Mireia Belmonte García, and 0.31 seconds under world record pace. Ledecky won by 4.13 seconds and just missed the world record by 0.53 seconds. Her gold was the first international medal of her career, earning her the 2012 Best Female Performance of the Year and Breakout Performer of the Year at the Golden Goggle Awards.

2013

USA Swimming Championships

At the 2013 US National Championships, Ledecky qualified to swim in four individual events and the 4×200-meter freestyle relay at the 2013 World Aquatics Championships in Barcelona, Spain, though she later dropped the 200-meter freestyle from her program. At the National Championships, she finished first in the 400-, 800- and 1500-meter freestyle, and second in the 200-meter freestyle.

World Championships

At the 2013 World Championships, Ledecky won gold in the 400-, 800-, and 1500-meter freestyle, and in the 4×200-meter freestyle relay, and set two world records. In winning the 400 through 1500-meter titles, she became the second woman ever to win the events in a World Championships since German Hannah Stockbauer in 2003. In her first event in Barcelona, the 400-meter freestyle, Ledecky became a world champion for the first time by winning in 3:59.82, setting a new American record and becoming the second-fastest performer of all time in the event.

In her second event, Ledecky won gold in the 1500-meter freestyle in a world record time of 15:36.53, breaking the record held by compatriot Kate Ziegler by six seconds. The hard-fought race saw Ledecky overcome Dane Lotte Friis in the final few hundred meters after losing the lead at the 300-meter mark and included a final 50 split of 29.47.

In her third, and first relay event of her international career, the 4×200-meter freestyle, Ledecky and teammates Shannon Vreeland, Karlee Bispo, and Missy Franklin won gold in 7:45.14. Anchor Missy Franklin overtook Australian Alicia Coutts in the last 200 meters, giving the US the gold. Ledecky provided the US with an early lead, swimming the first leg in a personal best of 1:56.32.

In her fourth and last event, the 800-meter freestyle, Ledecky won gold in a world record of 8:13.86, bettering Rebecca Adlington's world record of 8:14.10. Much like the 1500-meter freestyle, Ledecky let Lotte Friis lead most of the race, making a move at the 650-meter mark to eventually win the race by 2.46 seconds.

Ledecky scored more points than any other swimmer to earn the FINA trophy for best female swimmer of the meet.

At year's end, Ledecky was named the American Swimmer of the Year and the World Swimmer of the Year by Swimming World magazine. She was also named the best female swimmer for 2013 by FINA Aquatics World magazine.

2014

Ledecky began the year by breaking her own world records in the 800- and 1500-meter freestyle at the 2014 Woodlands Swim Team Senior Invitational in June. Despite being in season and swimming multiple events, Ledecky was able to first break the world record in the 1500-meter freestyle with a time of 15:34.23, bettering her previous mark of 15:36.53. Three days later, Ledecky then broke the world record in the 800-meter freestyle with a time of 8:11.00, bettering her previous mark of 8:13.86.