Athing Mu won the women's 800m at the 2023 Prefontaine Classic, which serves as the Eugene Diamond League. Her time of 1 hour, 54.97 seconds set a U.S. record and personal best.

Athing Mu's 2024 has unfortunately been marred by injury. She has yet to open her outdoor season and had to withdraw out of this year's Prefontaine Classic due to left hamstring soreness. She also had entered in the 400m at the LA Grand Prix but was forced to drop out just a few days beforehand.

As of now, Athing Mu is planning to compete at U.S. Trials, which begin June 21 in Eugene, Oregon. At Trials, she'll need to place in the top three of the women's 800m to defend her Olympic crown in Paris.

Athing Mu top competitors are Great Britain's Keely Hodgkinson (GBR) and Kenya’s Mary Moraa, who won the 2023 world title in the women's 800m. Other 800m medal contenders include U.S. star Raevyn Rogers, Ethiopia's Habitam Alemu and Tsige Duguma, as well as Great Britain's Jemma Reekie.

Athing Mu coach is Bobby Kersee, who also coached U.S. Olympic legend Jackie Joyner-Kersee, his wife.