[1] On 28 March 2010, Zhang won the first single's title of his professional career in an ITF Futures event in Mengzi City, China.

On 22 May 2011, exactly a year to the day of his first final on the Challenger Tour, Zhang won his second ITF single's title by defeating Lee Hsin-han in Guiyang, China.

In singles he lost in the first round to unseeded Australian two-time Grand Slam winner Lleyton Hewitt, ranked 87 in the world at the time, in four sets.

In men's doubles, Zhang and partner Lee Hsin-han of Taiwan were given a wildcard to the main draw and faced number 2 seeds Julien Benneteau and Édouard Roger-Vasselin of France in the first round and lost in straight sets.

After upsetting Denis Istomin in the first round, Zhang was defeated by world No.1 and defending champion Novak Djokovic, who went on to win the tournament for the sixth time.