Jang Su-Jeong has been playing in the ITF circuit due to her low ranking. She qualified for the 2022 Australian Open main draw, becoming the first South African to reach the main draw without a wild card since 2007.

Su-Jeong reached a career-high singles ranking of world number 120 in 2016. Her current sponsor is Yonex. She has earned $400,000 in her career.

Yonex

Jang Su-Jeong has a racquet, clothing, and shoe sponsorship contract with Yonex.