Career
On 14 September 2015, she reached her best singles ranking of world number 208 and peaked at world number 239 in the doubles rankings. Jang had a good career as a singles junior player, reaching her highest ranking in that category as World Number. 68. Her best junior grand slam was at the 2011 United States Open, where she reached the third round.
Her lone junior singles title was the Yangdu International Junior Championships (Gangwon, 2008).
The pair has defeated Miki Miyamura and Varatchaya Wongteanchai 7–6(4), 4–6, in the final. Singles: 12 (5–7)
Doubles: 12 (5–7).