Not to be confused with Jace Jung.
Jason Jung
Country
  • United States (2003–2015)
  • Taiwan (2015–present)
ResidenceTorrance, California, U.S.
Birth date15 June 1989 (age 37)
Birth placeTorrance, California, U.S.
Height1.80 m (5 ft 11 in)
Turnedpro2011
PlaysRight-handed (two-handed backhand)
CollegeMichigan
Careerprizemoney$ 1,168,101
Singlestitles0
HighestsinglesrankingNo. 114 (30 July 2018)
CurrentsinglesrankingNo. 1,038 (10 November 2025)
AustralianopenresultQ2 (2019, 2020)
Frenchopenresult1R (2020)
Wimbledonresult1R (2018)
Usopenresult1R (2020)
Doublestitles0
HighestdoublesrankingNo. 185 (26 September 2016)
CurrentdoublesrankingNo. 371 (3 November 2025)
Updated13 November 2025

Jason Jung (born June 15, 1989) is a professional tennis player. He has a career high ATP singles ranking of world No. 114 achieved on July 30, 2018, and has won four ATP Challenger titles. Jung has attended the University of Michigan.

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. Jung made the All Big Ten team as a junior and senior is the fourth all-time in Michigan history in career doubles wins.[1]

Jung makes blogs about his experiences and his life as a professional tennis player.[2] He was featured in an article by ESPN subsidiary Grantland – together with fellow Michigan alum Evan King as well as then-upcoming players Frances Tiafoe and William Blumberg) – that displayed the struggles and low prize money in playing on the ITF Futures Tour.[3]

Career

Jung 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 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. Jung was eliminated in the semifinals by Italian veteran Andreas Seppi in straight sets.[6]

ATP Challenger and ITF Tour finals

Singles: 20 (8–12)

Legend (singles)
ATP Challenger Tour (4–6)
ITF Futures/World Tennis Tour (4–6)
Titles by surface
Hard (8–11)
Clay (0–1)
Grass (0–0)
Carpet (0–0)
ResultW–LDateTournamentTierSurfaceOpponentScore
Win1–0Jul 2012USA F21, GodfreyFuturesHardCésar Ramírez2–6, 7–5, 6–2
Loss1–1May 2013China F4, FuzhouFuturesHardBai Yan3–6, 2–4 ret.
Win2–1Aug 2013USA F22, EdwardsvilleFuturesHardDimitar Kutrovsky6–2, 7–6(7–5)
Loss2–2Sep 2013Canada F7, TorontoFuturesClayPeter Polansky1–6, 1–6
Loss2–3Mar 2014USA F9, CalabasasFuturesHardMarcos Giron4–6, 6–4, 4–6
Loss2–4Nov 2014Thailand F10, BangkokFuturesHardDanai Udomchoke3–6, 4–6
Loss2–5Jan 2015USA F2, Los AngelesFuturesHardMitchell Krueger1–6, 2–6
Win3–5Apr 2015USA F13, Little RockFuturesHardDarian King6–3, 4–6, 6–4
Loss3–6Apr 2015Guadalajara, MexicoChallengerHardRajeev Ram1–6, 2–6
Loss3–7Jun 2016Canada F3, RichmondFuturesHardPeter Polansky1–6, 4–6
Win4–7Aug 2016Chengdu, China, P.R.ChallengerHardRubén Ramírez Hidalgo6–4, 6–2
Loss4–8Sep 2016Shanghai, China, P.R.ChallengerHardHenri Laaksonen3–6, 3–6
Win5–8Sep 2017Zhangjiagang, China, P.R.ChallengerHardZhang Ze6–4, 2–6, 6–4
Win6–8Feb 2018San Francisco, USAChallengerHard (i)Dominik Koepfer6–4, 2–6, 7–6(7–5)
Loss6–9Jul 2018Winnetka, USAChallengerHardEvgeny Karlovskiy3–6, 2–6
Loss6–10Sep 2018Zhangjiagang, China, P.R.ChallengerHardYasutaka Uchiyama2–6, 2–6
Win7–10May 2019Gwangju, Korea, Rep.ChallengerHardDudi Sela6–4, 6–2
Loss7–11Aug 2019Vancouver, CanadaChallengerHardRičardas Berankis3–6, 7–5, 4–6
Win8–11Jun 2023M25 Jakarta, IndonesiaWorld TourHardDominik Palán6–2, 6–2
Loss8–12Aug 2023Zhuhai, ChinaChallengerHardArthur Weber3–6, 7–5, 3–6

Doubles: 15 (11–4)

Legend (doubles)
ATP Challenger Tour (3–3)
ITF Futures Tour (8–1)
Titles by surface
Hard (9–3)
Clay (2–1)
Grass (0–0)
Carpet (0–0)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScore
Win1–0Aug 2012Canada F5, MississaugaFuturesHardEvan KingKamil Pajkowski
Milan Pokrajac		6–4, 6–2
Win2–0Nov 2012USA F31, NicevilleFuturesClayRyan ThacherArtem Sitak
Andrei Vasilevski		7–5, 6–2
Win3–0Dec 2012Hong Kong F1, Hong KongFuturesHardRyan ThacherVictor Baluda
Evgeny Karlovskiy		6–1, 6–1
Win4–0May 2013Korea F1, SeoulFuturesHardDaniel NguyenChung Hong
Noh Sang-woo		7–5, 6–1
Win5–0Sep 2013Canada F8, TorontoFuturesHardEvan KingMilan Pokrajac
Peter Polansky		7–5, 6–2
Win6–0Jan 2014USA F2, SunriseFuturesClayEvan KingWilliam Blumberg
Frances Tiafoe		6–7(4–7), 6–4, [10–6]
Loss6–1Jan 2014USA F3, WestonFuturesClayEvan KingMarkus Eriksson
Milos Sekulic		7–6(7–5), 6–7(4–7), [15–17]
Loss6–2Jun 2014Tianjin, China, P.R.ChallengerHardEvan KingRobin Kern
Josselin Ouanna		7–6(7–3), 5–7, [8–10]
Win7–2Jan 2016Maui, USAChallengerHardDennis NovikovAlex Bolt
Frank Moser		6–3, 4–6, [10–8]
Win8–2May 2016Bangkok, ThailandChallengerHardChen TiDean O'Brien
Ruan Roelofse		6–4, 3–6, [10–8]
Win9–2Jul 2016Canada F4, KelownaFuturesHardJohn Paul FrutteroJarryd Chaplin
Ben McLachlan		6–4, 7–6(7–4)
Loss9–3Oct 2021Las Vegas, USAChallengerHardEvan KingWilliam Blumberg
Max Schnur		5–7, 7–6(7–5), [5–10]
Loss9–4Sep 2025Shanghai, ChinaChallengerHardReese StalderPruchya Isaro
Niki Kaliyanda Poonacha		4–6, 7–6(7–2), [8–10]6–3, 4–6, [10–8]
Win10–4Mar 2026M15 Hinode, JapanWorld Tennis TourHardKaito UesugiShinji Hazawa
Masamichi Imamura		5–7, 7–5, [10–7]
Win11–4Apr 2026Wuning, ChinaChallengerHardKaito UesugiKeegan Smith
Zheng Baoluo		6–7(3–7), 6–3, [10–6].

Performance timeline

Singles

Tournament2014201520162017201820192020202120222023SRW–LWin %
Grand Slam tournaments
Australian OpenAAAAQ1Q2Q2AQ10 / 00–0
French OpenAQ2AQ1Q1A1RQ1Q20 / 10–1
WimbledonAQ1AQ11RQ1NHQ3Q30 / 10–1
US OpenAQ1AAAQ21RQ20 / 10–1
Win–loss0–00–00–00–00–10–00–20–00–00 / 30–3
ATP Tour Masters 1000
Indian Wells MastersAQ1Q2AAQ1NHQ1AA0 / 00–0–
Miami OpenAAAAAQ1NHQ2AA0 / 00–0–
Monte-Carlo MastersAAAAAANHAAA0 / 00–0–
Madrid OpenAAAAAANHAAA0 / 00–0–
Italian OpenAAAAAAAAAA0 / 00–0–
Canadian OpenQ1AAAAANHAAA0 / 00–0–
Cincinnati MastersAAAAAAAAAA0 / 00–0–
Shanghai MastersAAAAAANHQ10 / 00–0–
Paris MastersAAAAAAQ1AAA0 / 00–0–
Win–loss0–00–00–00–00–00–00–00–00–00–00 / 00–00%
Year-end ranking800$1,152,926

References

  1. ^ "Men's Tennis: Jason Jung". University of Michigan. Archived from the original on June 22, 2017. Retrieved 10 August 2016.
  2. ^ "Jason Jung". Jason Jung Tennis. Retrieved 10 August 2016.
  3. ^ Wachter, Paul (February 5, 2014). "The Futures Is Bleak". Grantland. Retrieved November 8, 2025.
  4. ^ Gobis, Peter (July 19, 2018). "Big Things Brewing for Smyczek in Newport". The Sun Chronicle. Triboro Massachusetts News Media.
  5. ^ "Kevin Anderson ousted by qualifier Jason Jung at New York Open". ESPN. February 11, 2020. Retrieved October 30, 2024.
  6. ^ "Taiwan's Jason Jung falls in semi-final in New York". Taipei Times. The Liberty Times Group. February 17, 2024. Retrieved October 30, 2024.