Watch: Katie Ledecky won five Olympic medals - in her gap year

Katie Ledecky capped off one of the greatest performances in Olympic history with her fourth gold medal and second world record, shattering her own mark in the 800m freestyle Friday night.

Ledecky and Debbie Meyer are now the only female swimmers to sweep the three longest freestyle races.

Final moments of the women's 800m freestyle, Katie Ledecky is a freak of nature lol. pic.twitter.com/HTjtTTchgi

— Jamie (@TheGrandSlams) August 13, 2016