Jason Jung

Not to be confused with Jace Jung.

Jason Jung (Chinese: 莊吉生; pinyin: Zhuāng Jíshēng; Pe̍h-ōe-jī: Chng Kit-seng; Taiwanese Mandarin: [tswáŋ tɕǐ sə́ŋ]; born 15 June 1989) is an American-born Taiwanese inactive professional tennis player representing team Chinese Taipei. He has a career high ATP singles ranking of world No. 114 achieved on 30 July 2018 and has won four ATP Challenger titles. Jung has attended the University of Michigan.

Jason Jung

Jung at the 2022 BNP Paribas Primrose Bordeaux
Country (sports)	United States (2003–2015) Taiwan (2015–present)
Residence	Torrance, California, United States
Born	(1989-06-15) 15 June 1989 (age 35) Torrance, California, United States
Height	1.80 m (5 ft 11 in)
Turned pro	2011
Plays	Right-handed (two-handed backhand)
College	Michigan
Coach	Oliver Messerli
Prize money	$ 1,152,926
Singles
Career record	12–25
Career titles	0
Highest ranking	No. 114 (30 July 2018)
Grand Slam singles results
Australian Open	Q2 (2019, 2020)
French Open	1R (2020)
Wimbledon	1R (2018)
US Open	1R (2020)
Doubles
Career record	1–2
Career titles	0
Highest ranking	No. 185 (26 September 2016)
Medal record Men's tennis Representing  Chinese Taipei Asian Games 2022 Hangzhou Doubles Summer Universiade 2017 Taipei Singles 2017 Taipei Team
Last updated on: 20 November 2024.

Personal life

Jung played college tennis at the University of Michigan, where he majored in political science. As a tennis player, he was the National and Midwest Regional winner of the ITA/Arthur Ashe Award for Leadership & Sportsmanship in 2010, made the All Big Ten team as a junior and senior, and is 4th all-time in Michigan history in career doubles wins.^[1]

He blogs about his experiences and his life as a professional tennis player.^[2] He was featured in an article by ESPN's Grantland (along with fellow Michigan alum Evan King and up-and-coming players Frances Tiafoe and William Blumberg) that highlighted the struggles and low prize money in playing on the ITF Futures Tour.^[3]

Career

Jung's reached his first quarterfinal at the 2018 Hall of Fame Tennis Championships in Newport, Rhode Island. He defeated veteran Nicolas Mahut in the second round, but his run was ended by Tim Smyczek, who outlasted Jung 6–1, 5–7, 6–4 in a nearly two-hour, 185-point quarterfinal match.^[4]

His career-best result is a semifinal berth at the 2020 New York Open, where he defeated former champion and former world No. 5 Kevin Anderson in the first round,^[5] followed by seventh seed Cameron Norrie in the second, before upsetting defending champion and third seed Reilly Opelka in the quarterfinals. He was eliminated in the semifinals by Italian veteran Andreas Seppi in straight sets.^[6]

ATP Challenger and ITF Tour finals

Singles: 19 (8–11)

Legend (singles) ATP Challenger Tour (4–5) ITF Futures/World Tennis Tour (4–6)

Titles by surface Hard (8–10) Clay (0–1) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Jul 2012	USA F21, Godfrey	Futures	Hard	César Ramírez	2–6, 7–5, 6–2
Loss	1–1	May 2013	China F4, Fuzhou	Futures	Hard	Bai Yan	3–6, 2–4 ret.
Win	2–1	Aug 2013	USA F22, Edwardsville	Futures	Hard	Dimitar Kutrovsky	6–2, 7–6(7–5)
Loss	2–2	Sep 2013	Canada F7, Toronto	Futures	Clay	Peter Polansky	1–6, 1–6
Loss	2–3	Mar 2014	USA F9, Calabasas	Futures	Hard	Marcos Giron	4–6, 6–4, 4–6
Loss	2–4	Nov 2014	Thailand F10, Bangkok	Futures	Hard	Danai Udomchoke	3–6, 4–6
Loss	2–5	Jan 2015	USA F2, Los Angeles	Futures	Hard	Mitchell Krueger	1–6, 2–6
Win	3–5	Apr 2015	USA F13, Little Rock	Futures	Hard	Darian King	6–3, 4–6, 6–4
Loss	3–6	Apr 2015	Guadalajara, Mexico	Challenger	Hard	Rajeev Ram	1–6, 2–6
Loss	3–7	Jun 2016	Canada F3, Richmond	Futures	Hard	Peter Polansky	1–6, 4–6
Win	4–7	Aug 2016	Chengdu, China, P.R.	Challenger	Hard	Rubén Ramírez Hidalgo	6–4, 6–2
Loss	4–8	Sep 2016	Shanghai, China, P.R.	Challenger	Hard	Henri Laaksonen	3–6, 3–6
Win	5–8	Sep 2017	Zhangjiagang, China, P.R.	Challenger	Hard	Zhang Ze	6–4, 2–6, 6–4
Win	6–8	Feb 2018	San Francisco, USA	Challenger	Hard (i)	Dominik Koepfer	6–4, 2–6, 7–6(7–5)
Loss	6–9	Jul 2018	Winnetka, USA	Challenger	Hard	Evgeny Karlovskiy	3–6, 2–6
Loss	6–10	Sep 2018	Zhangjiagang, China, P.R.	Challenger	Hard	Yasutaka Uchiyama	2–6, 2–6
Win	7–10	May 2019	Gwangju, Korea, Rep.	Challenger	Hard	Dudi Sela	6–4, 6–2
Loss	7–11	Aug 2019	Vancouver, Canada	Challenger	Hard	Ričardas Berankis	3–6, 7–5, 4–6
Win	8–11	Jun 2023	M25 Jakarta, Indonesia	World Tour	Hard	Dominik Palán	6–2, 6–2

Doubles: 12 (9–3)

Legend (doubles) ATP Challenger Tour (2–2) ITF Futures Tour (7–1)

Titles by surface Hard (7–2) Clay (2–1) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Aug 2012	Canada F5, Mississauga	Futures	Hard	Evan King	Kamil Pajkowski Milan Pokrajac	6–4, 6–2
Win	2–0	Nov 2012	USA F31, Niceville	Futures	Clay	Ryan Thacher	Artem Sitak Andrei Vasilevski	7–5, 6–2
Win	3–0	Dec 2012	Hong Kong F1, Hong Kong	Futures	Hard	Ryan Thacher	Victor Baluda Evgeny Karlovskiy	6–1, 6–1
Win	4–0	May 2013	Korea F1, Seoul	Futures	Hard	Daniel Nguyen	Chung Hong Noh Sang-woo	7–5, 6–1
Win	5–0	Sep 2013	Canada F8, Toronto	Futures	Hard	Evan King	Milan Pokrajac Peter Polansky	7–5, 6–2
Win	6–0	Jan 2014	USA F2, Sunrise	Futures	Clay	Evan King	William Blumberg Frances Tiafoe	6–7(4–7), 6–4, [10–6]
Loss	6–1	Jan 2014	USA F3, Weston	Futures	Clay	Evan King	Markus Eriksson Milos Sekulic	7–6(7–5), 6–7(4–7), [15–17]
Loss	6–2	Jun 2014	Tianjin, China, P.R.	Challenger	Hard	Evan King	Robin Kern Josselin Ouanna	7–6(7–3), 5–7, [8–10]
Win	7–2	Jan 2016	Maui, USA	Challenger	Hard	Dennis Novikov	Alex Bolt Frank Moser	6–3, 4–6, [10–8]
Win	8–2	May 2016	Bangkok, Thailand	Challenger	Hard	Chen Ti	Dean O'Brien Ruan Roelofse	6–4, 3–6, [10–8]
Win	9–2	Jul 2016	Canada F4, Kelowna	Futures	Hard	John Paul Fruttero	Jarryd Chaplin Ben McLachlan	6–4, 7–6(7–4)
Loss	9–3	Oct 2021	Las Vegas, USA	Challenger	Hard	Evan King	William Blumberg Max Schnur	5–7, 7–6(7–5), [5–10]

Performance timeline

Key

W

F

SF

QF

#R

RR

Q#

DNQ

A

NH

(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.

To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.

Singles

Tournament	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023	SR	W–L	Win %
Grand Slam tournaments
Australian Open	A	A	A	A	Q1	Q2	Q2	A	Q1		0 / 0	0–0	–
French Open	A	Q2	A	Q1	Q1	A	1R	Q1	Q2		0 / 1	0–1	0%
Wimbledon	A	Q1	A	Q1	1R	Q1	NH	Q3	Q3		0 / 1	0–1	0%
US Open	A	Q1	A	A	A	Q2	1R	Q2			0 / 1	0–1	0%
Win–loss	0–0	0–0	0–0	0–0	0–1	0–0	0–2	0–0	0–0		0 / 3	0–3	0%
ATP Tour Masters 1000
Indian Wells Masters	A	Q1	Q2	A	A	Q1	NH	Q1	A	A	0 / 0	0–0	–
Miami Open	A	A	A	A	A	Q1	NH	Q2	A	A	0 / 0	0–0	–
Monte-Carlo Masters	A	A	A	A	A	A	NH	A	A	A	0 / 0	0–0	–
Madrid Open	A	A	A	A	A	A	NH	A	A	A	0 / 0	0–0	–
Italian Open	A	A	A	A	A	A	A	A	A	A	0 / 0	0–0	–
Canadian Open	Q1	A	A	A	A	A	NH	A	A	A	0 / 0	0–0	–
Cincinnati Masters	A	A	A	A	A	A	A	A	A	A	0 / 0	0–0	–
Shanghai Masters	A	A	A	A	A	A	NH			Q1	0 / 0	0–0	–
Paris Masters	A	A	A	A	A	A	Q1	A	A	A	0 / 0	0–0	–
Win–loss	0–0	0–0	0–0	0–0	0–0	0–0	0–0	0–0	0–0	0–0	0 / 0	0–0	0%
Year-end ranking										800	$1,152,926