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 30 July 2018 and a doubles ranking of No. 170 achieved on 3 August 2026. He 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.

Jung makes blogs about his experiences and his life as a professional tennis player. 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.

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.

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, 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.

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 surfaceHard (8–11)Clay (0–1)Grass (0–0)Carpet (0–0)

ResultW–LDateTournamentTierSurfaceOpponentScoreWin1–0USA F21, GodfreyFuturesHard César Ramírez2–6, 7–5, 6–2Loss1–1China F4, FuzhouFuturesHard Bai Yan3–6, 2–4 ret.Win2–1USA F22, EdwardsvilleFuturesHard Dimitar Kutrovsky6–2, 7–6(7–5)Loss2–2Canada F7, TorontoFuturesClay Peter Polansky1–6, 1–6Loss2–3USA F9, CalabasasFuturesHard Marcos Giron4–6, 6–4, 4–6Loss2–4Thailand F10, BangkokFuturesHard Danai Udomchoke3–6, 4–6Loss2–5USA F2, Los AngelesFuturesHard Mitchell Krueger1–6, 2–6Win3–5USA F13, Little RockFuturesHard Darian King6–3, 4–6, 6–4Loss3–6Guadalajara, MexicoChallengerHard Rajeev Ram1–6, 2–6Loss3–7Canada F3, RichmondFuturesHard Peter Polansky1–6, 4–6Win4–7Chengdu, China, P.R.ChallengerHard Rubén Ramírez Hidalgo6–4, 6–2Loss4–8Shanghai, China, P.R.ChallengerHard Henri Laaksonen3–6, 3–6Win5–8Zhangjiagang, China, P.R.ChallengerHard Zhang Ze6–4, 2–6, 6–4Win6–8San Francisco, USAChallengerHard (i) Dominik Koepfer6–4, 2–6, 7–6(7–5)Loss6–9Winnetka, USAChallengerHard Evgeny Karlovskiy3–6, 2–6Loss6–10Zhangjiagang, China, P.R.ChallengerHard Yasutaka Uchiyama2–6, 2–6Win7–10Gwangju, Korea, Rep.ChallengerHard Dudi Sela6–4, 6–2Loss7–11Vancouver, CanadaChallengerHard Ričardas Berankis3–6, 7–5, 4–6Win8–11M25 Jakarta, IndonesiaWorld TourHard Dominik Palán6–2, 6–2Loss8–12Zhuhai, ChinaChallengerHard Arthur Weber3–6, 7–5, 3–6

Doubles: 16 (12–4) Legend (doubles)ATP Challenger Tour (4–3)ITF Futures Tour (8–1)Titles by surfaceHard (9–3)Clay (3–1)Grass (0–0)Carpet (0–0)

ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin1–0Canada F5, MississaugaFuturesHard Evan King Kamil Pajkowski Milan Pokrajac6–4, 6–2Win2–0USA F31, NicevilleFuturesClay Ryan Thacher Artem Sitak Andrei Vasilevski7–5, 6–2Win3–0Hong Kong F1, Hong KongFuturesHard Ryan Thacher Victor Baluda Evgeny Karlovskiy6–1, 6–1Win4–0Korea F1, SeoulFuturesHard Daniel Nguyen Chung Hong Noh Sang-woo7–5, 6–1Win5–0Canada F8, TorontoFuturesHard Evan King Milan Pokrajac Peter Polansky7–5, 6–2Win6–0USA F2, SunriseFuturesClay Evan King William Blumberg Frances Tiafoe6–7(4–7), 6–4, [10–6]Loss6–1USA F3, WestonFuturesClay Evan King Markus Eriksson Milos Sekulic7–6(7–5), 6–7(4–7), [15–17]Loss6–2Tianjin, China, P.R.ChallengerHard Evan King Robin Kern Josselin Ouanna7–6(7–3), 5–7, [8–10]Win7–2Maui, USAChallengerHard Dennis Novikov Alex Bolt Frank Moser6–3, 4–6, [10–8]Win8–2Bangkok, ThailandChallengerHard Chen Ti Dean O'Brien Ruan Roelofse6–4, 3–6, [10–8]Win9–2Canada F4, KelownaFuturesHard John Paul Fruttero Jarryd Chaplin Ben McLachlan6–4, 7–6(7–4)Loss9–3Las Vegas, USAChallengerHard Evan King William Blumberg Max Schnur5–7, 7–6(7–5), [5–10]Loss9–4Shanghai, ChinaChallengerHard Reese Stalder Pruchya Isaro Niki Kaliyanda Poonacha4–6, 7–6(7–2), [8–10]Win10–4 M15 Hinode, JapanWorld Tennis TourHard Kaito Uesugi Shinji Hazawa Masamichi Imamura5–7, 7–5, [10–7] Win11–4Wuning, ChinaChallengerHard Kaito Uesugi Keegan Smith Zheng Baoluo6–7(3–7), 6–3, [10–6]Win12–4Bad Rappenau, GermanyChallengerClay Kaito Uesugi Tim Rühl Mick Veldheer7–6(7–4), 2–6, [12–10]

Performance timeline

Singles Tournament201420152016201720182019202020212022 2023SRW–LWin %Grand Slam tournamentsAustralian OpenAAAAQ1Q2Q2AQ1A0 / 00–0French OpenAQ2AQ1Q1A1RQ1Q2A0 / 10–1WimbledonAQ1AQ11RQ1NHQ3Q30 / 10–1US OpenAQ1AAAQ21RQ2A0 / 10–1Win–loss0–00–00–00–00–10–00–20–00–00 / 30–3ATP Tour Masters 1000Indian 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

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