After losing in the women's 400-meter freestyle to Australia's Ariarne Titmus on Wednesday, U.S. swimmer Katie Ledecky responded back with a dominating performance in the women's 1500m free final, becoming the first-ever gold medalist in the event.
Wednesday marked the first time women could swim in the event at the Olympic Games.
Ledecky, who made her Olympic debut as a 15-year-old at the 2012 Olympics in London, completed the event in 15:37.34, followed by her U.S. teammate Erica Sullivan just 4.07 behind her. Germany's Sarah Kohler won the bronze medal with a time.
Ledecky, who now has six career gold medals, is tied with Allyson Felix and Amy Van Dyken for the most gold medals all-time by an American woman.