(L-R) Lu Xiuzhi of China, silver medal, Liu Hong of China, gold medal, and Lyudmyla Olyanovska of Ukraine, bronze medal, pose on the podium after the women's 20 km race walk event during the 15th IAAF World Championships at the National Stadium in Beijing, August 28, 2015. [Photo/Agencies]

Liu Hong of China celebrates on her way to the finish line as she wins the women's 20 km race walk final ahead of Lu Xiuzhi of China during the 15th IAAF World Championships at the National Stadium in Beijing, August 28, 2015. [Photo/Agencies]