Katie Ledecky returned to Olympic competition in typically dominant fashion, cruising to a win in her heat of the women’s 400m freestyle — the event she holds the world and Olympic records in. #NBCOlympics #Tokyo2020 #Swimming » Subscribe to NBC Sports: » Watch live Olympic coverage on NBCOlympics.com: Stay up to date on Swimming in… Continue reading Katie Ledecky makes her Tokyo debut with win in 400m free heat | Tokyo Olympics | NBC Sports