Olympic champion Dalilah Muhammad set a new world record in the 400m hurdles at the US Championships on Sunday.
The 29-year-old clocked a time of 52.20, shaving 0.14 seconds off Yuliya Pechonkina's record that had stood since 2003.
Muhammad did it from lane four and in rainy conditions in Des Moines.
She is the reigning Olympic champion, having topped the podium in Rio in 2016 with a time of 53.13.
🏃♀️ The women's 400m hurdles record had stood since 2003.👊 It's now been broken by Dalilah Muhammad. 🌧️ In those conditions! pic.twitter.com/nt3sRJpRPq— Sporting Life (@SportingLife) July 29, 2019
🏃♀️ The women's 400m hurdles record had stood since 2003.👊 It's now been broken by Dalilah Muhammad. 🌧️ In those conditions! pic.twitter.com/nt3sRJpRPq
