Athletes compete during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Zhao Hao from Chongqing competes during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Li Bin from Shaanxi Province competes during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Athletes run from the start line during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Athletes compete during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Zeng Wenbo from Changsha competes during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Liang Xinde from Hangzhou competes during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Zhao Hao from Chongqing celebrates after crossing the finish line during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Athletes compete during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Yang Yong from Changsha competes during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Athletes warm up prior to the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Athletes compete during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)

Zhao Hao from Chongqing competes during the one-day full marathon competition at the 2020 Tour of Qinghai Lake Marathon, northwest China's Qinghai Province, Aug. 18, 2020. (Xinhua/Zhang Hongxiang)