Katie Ledecky makes her final swim in Tokyo count, leaving no doubt as she claimed her fourth medal of the Games with gold in the 800m freestyle. #NBCOlympics #Tokyo2020 #KatieLedecky » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch live Olympic…

Katie Ledecky (USA), one of the best swimmers of all time (and a huge inspiration for us) is de-throned by an amazing performance by Ariarne Titmus (AUS) using some amazing pacing skills.