In 2009 Ding played for her first time international: At the world championships she won silver. Therefore she came under the top 10 in the world rankings. At the asian championships she won gold in the singles, doubles and with the team. 2010 she was a part of the Chinese National Team that lost to Singapore in the final at the world championships in Moscow. In 2011 she finally put in the world rankings: Ding became world champion in singles, won three Pro Tour Titles , became vice-world champion in doubles and won the world cup at their first participation. In November 2011 she was for the first time number one in the world.