Herdswomen perform during the opening ceremony of a horse racing festival in Damxung County, southwest China's Tibet Autonomous Region, Aug. 8, 2018. (Photos: Xinhua)

Dangjiren horse racing is originated from military parade of Mongolian cavalry since 17th century.

Herdsmen dance during a performance in the opening ceremony of a horse racing festival in Damxung County, southwest China's Tibet Autonomous Region, Aug. 8, 2018.

Riders enter the race course during the opening ceremony of a horse racing festival in Damxung County, southwest China's Tibet Autonomous Region, Aug. 8, 2018.

Dangjiren horse racing is originated from military parade of Mongolian cavalry since 17th century.

A herdsman(R) introduces his costume before the opening ceremony of a horse racing festival in Damxung County, southwest China's Tibet Autonomous Region, Aug. 8, 2018.