Katie Ledecky is an 18-year old swimmer for the United States. She recently graduated from Stone-Ridge School of the Sacred Heart in Bethesda Maryland. She swims the 400, 800, and 1500 meter freestyle events. She has been compared with the great Janet Evans, the last American to dominate these events.At the 2015 FINA World Championships in Russia, she will be chasing after the World Record she has set and re-set the last 3 years. She not only wins these races, but she dominates them like Evans did in her era. In her last races, she won the 400 by 10 meters, the 800 by 45 meters, and the 1500 meter by the same distance. The 1500 meter swim was the only one in which Janet Evans ever had a larger margin of victory.