Liang Rui of China competes during the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Li Gang)

Liang Rui of China celebrates after the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)

Liang Rui of China competes during the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Li Ming)

Eleonora Anna Giorgi of Italy competes during the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)

Liang Rui of China competes during the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)

Eleonora Anna Giorgi of Italy celebrates after the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)

Li Maocuo of China competes during the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Li Ming)

Liang Rui of China competes during the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Li Ming)

Eleonora Anna Giorgi of Italy celebrates after the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Jia Yuchen)

Li Maocuo of China celebrates after the women's 50km race walk at the 2019 IAAF World Championships in Doha, Qatar, Sept. 29, 2019. (Xinhua/Li Ming)