Katie Ledecky has won 7 Olympic gold medals and 15 world championship gold medals, the most in history for a female swimmer and is widely considered to be the greatest female swimmer of all-time. Here's a look back to her in action at London 2012. For the full Olympic schedule including all the swimming visit https://oly.ch/2WKbQFB | Olympics

Seven-time 800m free world champion Katie Ledecky reflects on her historic victory in Singapore. 🙌 | NBC Olympics & Paralympics

2.7M views · 30K reactions | When 15-year-old Katie Ledecky shocked the world by winning the 800m freestyle gold! 勞 The American produced one of the most incredible Olympic debuts of all time at London 2012, finishing more than four seconds ahead of second place. It was just the beginning, the first of her seven Olympic gold medals. 磊磊磊磊磊磊磊 World Aquatics | Team USA | Katie Ledecky | Olympics | Facebook

🐐 Ledecky's technique is so smooth she didn’t spill a single drop! #GotMilkChallenge https://bit.ly/31a0d9s (via Katie Ledecky) | Sports Illustrated

48K views · 4.6K reactions | The “Ledecky Challenge” is a remarkable...