Jang Su-jeong (Korean: 장수정hanja: 張修貞; born 13 March 1995) is a South Korean tennis player.
Jang has won seven singles and seven doubles titles on the ITF Circuit. On 12 June 2017, she achieved a career-high singles ranking of world No. 120. On 7 March 2016, she peaked at No. 218 in the doubles rankings.
Her most successful performance to date came at the 2013 KDB Korea Open, where she reached the quarterfinals with a three-set win over Ons Jabeur of Tunisia.
Jang had a good career as a singles junior player, reaching her highest ranking in that category as world No. 68. Her best junior Grand Slam tournament was at the 2011 US Open, where she reached the third round. Her lone junior singles title was at the Yangdu International Junior Championships (Gangwon, 2008).
She won her first ITF Circuit title in Bundaberg, Australia on 30 March 2013, winning the doubles tournament with Lee So-ra. The pair defeated Miki Miyamura and Varatchaya Wongteanchai in the final.
She qualified into the main draw at the 2022 Australian Open for her Grand Slam debut.
Grand Slam singles performance timeline[]
Key
W
F
SF
QF
#R
RR
Q#
P#
DNQ
A
Z#
PO
G
F-S
SF-B
NMS
P
NH
(W) Won; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (F-S) silver or (SF-B) bronze Olympic/Paralympic medal; a (NMS) downgraded Masters Series/1000 tournament; (P) postponed; (NH) not held. SR=strike rate (events won/competed)
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.