Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final. (Photos: Xinhua/Zhang Rufeng)

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Po Karyu (C) competes during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Tenpa Rigsang competes during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Po Karyu (front R) competes during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Po Karyu competes during the final of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Cering Toinzhub competes during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Po Karyu competes during the final of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young rider Cering Toinzhub competes during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.

Young riders compete during the preliminary round of 8km horse race at a traditional horse racing festival in Nagqu of southwest China's Tibet Autonomous Region, Aug. 12, 2020. 13-year-old rider Po Karyu from Nyainrong County claimed the title in the final.