In 2009, Ding Ning defeated Zhang Yining, who was ranked second in both stages, in the internal trial of crossing Yokohama in Guo Ping, and became the champion of "crossing Yokohama". He was the first to qualify for the World Table Tennis Championships, started his first singles tour, won the first world championship in his career and became one of the main players.
201August 19, Ding Ning defeated Wang Yidi 4-3 in the women's singles final of the 20 18 ITTF Bulgarian Open. 20 18 On September 30th, Ding Ning defeated Zhu Yuling 4-0 and won the women's table tennis World Cup for the third time. On July 7th, 20 19, Ding Ning won the second place in the women's singles at the Korean table tennis open.