Athing Mu

Athing Mu-Nikolayev (née Mu; born June 8, 2002) is an American middle-distance runner. She is the youngest woman to hold Olympic and world titles in an individual track and field event. At the age of 19, Mu won the gold medal in the 800 meters at the 2020 Tokyo Olympics, breaking a national record set by Ajeé Wilson in 2017, and a continental under-20 record. She took a second gold as part of the women's 4 × 400 m relay. She was the 800 m 2022 World champion, becoming the first American woman to win the world championship title over the distance.