Artists perform during the opening ceremony of the 13th Gesar horse racing festival in Maqu County, Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province, Aug. 13, 2020. (Xinhua/Geng Xinning)

Artists perform during the opening ceremony of the 13th Gesar horse racing festival in Maqu County, Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province, Aug. 13, 2020. (Xinhua/Geng Xinning)

Riders perform during the opening ceremony of the 13th Gesar horse racing festival in Maqu County, Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province, Aug. 13, 2020. (Xinhua/Geng Xinning)

A rider performs during the opening ceremony of the 13th Gesar horse racing festival in Maqu County, Gannan Tibetan Autonomous Prefecture, northwest China's Gansu Province, Aug. 13, 2020. (Xinhua/Geng Xinning)