Katie Ledecky

Kathleen Genevieve Ledecky (born March 17, 1997) is an American competition swimmer. At the 2012 Olympics in London, she won the gold medal in the 800-meter freestyle. At the 2016 Olympics in Rio de Janeiro, she won four gold medals.
At the world championships in 2013 in Barcelona, Spain, and the 2015 world championships in Kazan, Russia, she won 9 gold medals in total. She has broken a world record 13 times, in the 400-meter, 800-meter, and 1500-meter freestyle.
Ledecky was born in Washington, D.C.