US-American swimming star Katie Ledecky is a seven-time Olympic gold medallist! She made her Olympic debut at the 2012 London Olympic Games. Having won 7 Olympic gold medals and 15 world championship gold medals, the most in history for a female swimmer, she is widely considered the greatest female swimmer of all time. She talks to the Olympic Channel about her accomplishments, always looking to improve, and Tara VanDerveer.
