Bio

Athing Mu (born June 8, 2002) is an American middle-distance runner. At the age of 19, she won a gold medal in the 800 meters at the 2020 Tokyo Olympics, breaking a national record set by Ajee' Wilson in 2017, and a continental under-20 record. Mu set the world under-20 record in the women's indoor 800 m in early 2021 with a time of 1:58.40, and the world under-20 best in the indoor 600 meters in 2019 when she was 16 years of age. Her time over 600 m of 1:23.57 is the second fastest ever run indoors and the second fastest run by an American woman in any condition.