The female Michael Phelps: Triple-world record holder Katie Ledecky, 19, wins gold in 400m freestyle
The 19-year-old raced home in 3:56.46 – almost five seconds fast than Britain’s Jazz Carlin, who came in second with 4:01.23. Leah Smith, also of the United States, was third with 4:01.92.
The female Michael Phelps: Triple-world record holder Katie Ledecky, 19, wins gold in 400m freestyle
