Liu Hong break 4-hour to set women's 50km race walk world record

China's Liu Hong (2nd R) competes during the women's 50km race at the Chinese Race Walk Grand Prix in Huangshan, east China's Anhui Province, March 9, 2019. Liu Hong became the first woman to break the 4-hour barrier in 50km event as she cruised to a 3:59:15 victory to set the world record on Saturday. (Xinhua/Shi Yalei)