ATPranked 150 (2021-04-25)rating 1506 · peak 1590
Jason Jung
Chinese Taipei · 37 years old · plays right-handed · 5'11" tall · born in Torrance, CA, USA
ATP singles record since 2007
Won-lost
19-35
35% of matches
Titles
0
0 finals lost
Tiebreaks
11-10
won-lost
Deciding sets
8 of 20
46% of games won
By surface
| Surface | Won-lost | Win % | Games won | Tiebreaks | Rating |
|---|---|---|---|---|---|
| hard | 12-25 | 32% | 45% | 8-6 | 1484 |
| grass | 6-8 | 43% | 49% | 2-2 | 1498 |
| clay | 1-2 | 33% | 47% | 1-2 | 1475 |
Counted from scores; walkovers excluded. See surface Elo and share of games won.
Recent matches
| Date | Tournament | Opponent | Result | Score |
|---|---|---|---|---|
| 2023-10-14 | Kinoshita Group Japan Open Tennis Championships Qualifying 1st Round | Taro Daniel | loss | 6-7(1) 6-3 6-3 |
| 2023-10-02 | Rolex Shanghai Masters Qualifying 1st Round | Beibit Zhukayev | loss | 4-6 6-3 6-3 |
| 2023-08-03 | Mifel Tennis Open by Telcel Oppo Round 2 | Borna Coric | loss | 6-1 6-2 |
| 2023-08-02 | Mifel Tennis Open by Telcel Oppo Round 1 | Ernesto Escobedo | win | 3-6 7-6(5) 6-2 |
| 2023-07-31 | Mifel Tennis Open by Telcel Oppo Qualifying Final | Omni Kumar | loss | 6-4 4-6 7-6(3) |
| 2023-07-30 | Mifel Tennis Open by Telcel Oppo Qualifying 1st Round | Alexandr Cozbinov | win | 6-0 6-1 |
| 2023-07-25 | Atlanta Open Round 1 | J.J. Wolf | loss | 6-2 6-1 |
| 2023-07-23 | Atlanta Open Qualifying Final | Gabriel Diallo | win | 4-6 7-5 7-6(1) |
| 2023-07-22 | Atlanta Open Qualifying 1st Round | Shintaro Mochizuki | win | 7-6(3) 6-4 |
| 2022-07-10 | Cerity Partners Hall of Fame Open for the Van Alen Cup Presented by the Margaret Fund Qualifying 1st Round | Mirza Basic | loss | 6-3 6-4 |
| 2022-06-23 | Wimbledon Qualifying Final | Marc-Andrea Huesler | loss | 7-5 6-4 3-6 3-6 6-2 |
| 2022-06-22 | Wimbledon Qualifying 2nd Round | Illya Marchenko | win | 7-6(5) 6-2 |
| 2022-06-20 | Wimbledon Qualifying 1st Round | Filip Misolic | win | 6-2 3-6 6-2 |
| 2022-05-18 | Roland Garros Qualifying 2nd Round | Chun-Hsin Tseng | loss | 7-5 6-4 |
| 2022-05-17 | Roland Garros Qualifying 1st Round | Zizou Bergs | win | 6-4 7-6(8) |
| 2022-02-13 | Delray Beach Open Qualifying Final | Liam Broady | loss | 6-4 6-4 |
| 2022-02-13 | Delray Beach Open Qualifying Final | Liam Broady | loss | 6-4 6-4 |
| 2022-02-12 | Delray Beach Open Qualifying 1st Round | Renzo Olivo | win | 6-2 6-3 |
| 2022-02-12 | Delray Beach Open Qualifying 1st Round | Renzo Olivo | win | 6-2 6-3 |
| 2022-02-07 | Nexo Dallas Open Qualifying Final | Jurij Rodionov | loss | 4-6 6-2 6-3 |
| 2022-02-06 | Nexo Dallas Open Qualifying 1st Round | Go Soeda | win | 3-6 6-1 7-6(6) |
| 2022-01-10 | Australian Open Qualifying 1st Round | Yannick Hanfmann | loss | 6-7(5) 7-5 6-0 |
| 2022-01-10 | Australian Open Qualifying 1st Round | Yannick Hanfmann | loss | 6-7(5) 7-5 6-0 |
| 2021-07-20 | Mifel Open Round 1 | Evgeny Donskoy | loss | 6-1 6-4 |
| 2021-07-15 | Hall of Fame Open QF | Alexander Bublik | loss | 6-2 6-4 |
| 2021-07-14 | Hall of Fame Open Round 2 | Tennys Sandgren | win | 6-2 6-2 |
| 2021-07-13 | Hall of Fame Open Round 1 | Brayden Schnur | win | 7-5 6-7(1) 7-6(4) |
| 2021-02-22 | Singapore Tennis Open Round 1 | Maxime Cressy | loss | 7-6(4) 6-2 |
| 2020-10-28 | Erste Bank Open Round 1 | Daniil Medvedev | loss | 6-3 6-1 |
| 2020-09-27 | French Open Round 1 | Federico Coria | loss | 7-5 7-6(6) 7-6(3) |
| 2020-08-31 | US Open Round 1 | Federico Coria | loss | 2-6 4-6 6-4 6-1 2-0 ret. |
| 2020-02-26 | Abierto Mexicano Telcel presentada por HSBC Round 1 | Alexander Zverev | loss | 7-6(6) 6-1 |
| 2020-02-18 | Delray Beach Open by Vitacost.com Round 1 | Noah Rubin | loss | 6-3 4-3 ret. |
| 2020-02-16 | New York Open SF | Andreas Seppi | loss | 6-3 6-2 |
| 2020-02-15 | New York Open QF | Reilly Opelka | win | 5-7 6-4 6-4 |
| 2020-02-13 | New York Open Round 2 | Cameron Norrie | win | 6-4 6-4 |
| 2020-02-12 | New York Open Round 1 | Kevin Anderson | win | 7-6(6) 6-4 |
| 2020-01-16 | Australian Open | Daniel Elahi Galan | loss | 6-3 3-6 6-3 |
| 2019-09-23 | Chengdu Open Round 1 | Bradley Klahn | loss | 4-6 6-3 7-6(2) |
| 2019-07-30 | Abierto Mexicano de Tenis Mifel presentado por Cinemax Round 1 | Ernests Gulbis | loss | 6-4 7-6(2) |
| 2019-07-23 | BB&T Atlanta Open Round 1 | Daniel Evans | loss | 6-1 6-1 |
| 2019-07-16 | Hall of Fame Open Round 1 | Viktor Troicki | loss | 3-6 7-5 7-5 |
| 2019-02-19 | Delray Beach Open Round 1 | Steve Johnson | loss | 7-6(3) 6-4 |
| 2019-02-15 | New York Open QF | Sam Querrey | loss | 6-3 3-6 6-3 |
| 2019-02-15 | New York Open Round 2 | Frances Tiafoe | win | 6-3 7-5 |
| 2019-02-12 | New York Open Round 1 | Ramkumar Ramanathan | win | 6-3 3-6 6-1 |
| 2018-09-25 | Shenzhen Open Round 1 | Fernando Verdasco | loss | 6-3 6-2 |
| 2018-07-19 | Infosys Hall of Fame Open QF | Tim Smyczek | loss | 6-1 5-7 6-4 |
| 2018-07-18 | Infosys Hall of Fame Open Round 2 | Nicolas Mahut | win | 6-4 6-4 |
| 2018-07-17 | Infosys Hall of Fame Open Round 1 | Sergiy Stakhovsky | win | 6-4 3-6 6-3 |
| 2018-07-03 | Wimbledon Round 1 | Benoit Paire | loss | 7-5 7-6(1) 6-4 |
| 2017-07-31 | ATP Abierto Mexicano de Tenis MIFEL presented by Cinemex Round 1 | Adrian Mannarino | loss | 6-3 6-3 |
| 2017-06-13 | ATP & WTA Topshelf Open | Ernesto Escobedo | loss | 6-4 6-2 |
| 2017-06-13 | ATP & WTA Topshelf Open Round 1 | Ernesto Escobedo | loss | 6-4 6-2 |
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