Team USA's Sydney McLaughlin set a world record to win gold in the women's 400 meters hurdles, with a time of 51.46 seconds.
Fellow American Dalilah Muhammad, who won the event at Rio 2016, came second with a time of 51.58 — fast enough to beat the previous world record of 51.90, which McLaughlin set in June.
McLaughlin is the youngest Olympic medal winner in the women’s 400 meters hurdles, at 21 years and 362 days old. She's also the first holder of the world record to win Olympic gold in this event.
Dutchwoman Femke Bol won bronze in 52.03, a European record.
The stunning performances by McLaughlin and Muhammad mirror the result of yesterday's men's 400 meters hurdles final, when gold medalist Karsten Warholm and silver medalist Rai Benjamin both shattered the previous world record in the event.