Jason Jung (#no-rank)
| atpworldtour.com | ATP | Country |  Taiwan |
| Wikipedia | Eng / Fr | Birth | 1989-06-15 - age 35 |
| Career best ranking | 114 - 2018-07-30 - age 29 (+1 M) | Résidence |  United States of America |
| Height | - | ||
| Weight | - |
| Conditions | W | D | ratio |
|---|---|---|---|
| Hard (out.) | 6 | 16 | 27.27% |
| Grass | 3 | 4 | 42.86% |
| Clay | 1 | 4 | 20.00% |
| Hard (in.) | 8 | 8 | 50.00% |
| TOTAL | 18 | 32 | 36.00% |
| # | Date | Categ | Tournament | Conditions | Round | #Rank | Opponent | Score | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2023-08-14 | Challenger | Golden Gate Open | Hard (out.) | 16e | #258 |  #167 Dalibor Svrcina | 6/4 6/2 | |
| 2 | 2023-07-31 | 250 |  Los Cabos Open | Hard (out.) | 8e | #281 |  #15 Borna Coric | 6/1 6/2 | |
| 3 | 2023-07-31 | 250 | Los Cabos Open | Hard (out.) | 16e | #281 | #373 Ernesto Escobedo | 3/6 7/6(5) 6/2 | |
| 4 | 2023-07-24 | 250 | Atlanta Open | Hard (out.) | 16e | #281 | #45 J.J. Wolf | 6/2 6/1 | |
| 5 | 2023-01-09 | Challenger |  Bangkok Open 2 (Challenger) | Hard (out.) | DF | #388 |  #237 Lloyd Harris | 6/1 6/4 | |
| 6 | 2023-01-09 | Challenger | Bangkok Open 2 (Challenger) | Hard (out.) | QF | #388 |  #392 Evgeny Donskoy | 4/6 7/5 6/3 | |
| 7 | 2023-01-09 | Challenger | Bangkok Open 2 (Challenger) | Hard (out.) | 8e | #388 |  #310 Beibit Zhukayev | 6/4 7/6(3) | |
| 8 | 2023-01-09 | Challenger | Bangkok Open 2 (Challenger) | Hard (out.) | 16e | #388 |  #266 Sho Shimabukuro | 6/4 6/1 | |
| 9 | 2022-06-06 | Challenger |  Nottingham Challenger | Grass | 16e | #249 | #223 Borna Gojo | 6/2 7/6(3) | |
| 10 | 2022-04-25 | Challenger | Savannah Challenger | Clay | 8e | #217 | #369 Alex Rybakov | 7/5 6/4 | |
| 11 | 2022-04-25 | Challenger | Savannah Challenger | Clay | 16e | #217 |  #130 Emilio Gomez | 6/2 4/4 ret. | |
| 12 | 2021-09-20 | Challenger | Ohio Championships Challenger | Hard (in.) | 16e | #166 | #323 Ryan Peniston | 6/3 6/4 | |
| 13 | 2021-07-19 | 250 | Los Cabos Open | Hard (out.) | 16e | #163 | #142 Evgeny Donskoy | 6/1 6/4 | |
| 14 | 2021-07-12 | 250 | Newport HOF Open | Grass | QF | #160 | #38 Alexander Bublik | 6/2 6/4 | |
| 15 | 2021-07-12 | 250 | Newport HOF Open | Grass | 8e | #160 | #68 Tennys Sandgren | 6/2 6/2 | |
| 16 | 2021-07-12 | 250 | Newport HOF Open | Grass | 16e | #160 |  #248 Brayden Schnur | 7/5 6/7(1) 7/6(4) | |
| 17 | 2021-05-17 | Challenger |  Oeiras 3 Challenger | Clay | 16e | #151 | #170 Frederico Ferreira Silva | 1/6 6/4 6/3 | |
| 18 | 2021-02-22 | 250 |  Singapore Open | Hard (in.) | 16e | #136 | #172 Maxime Cressy | 7/6(4) 6/2 | |
| 19 | 2021-02-15 | Challenger |  Biella 2 | Hard (in.) | 16e | #136 |  #97 Soonwoo Kwon | 6/3 6/4 | |
| 20 | 2020-10-26 | 500 |  Vienna Open | Hard (in.) | 16e | #127 | #6 Daniil Medvedev | 6/3 6/1 | |
| 21 | 2020-10-19 | Challenger |  Istanbul Challenger | Hard (out.) | QF | #127 |  #194 Benjamin Bonzi | 7/6(6) 6/2 | |
| 22 | 2020-10-19 | Challenger | Istanbul Challenger | Hard (out.) | 8e | #127 | #272 DoNotUse Tristan Lamasine | 6/0 6/3 | |
| 23 | 2020-10-19 | Challenger | Istanbul Challenger | Hard (out.) | 16e | #127 |  #176 Denis Istomin | 2/2 ret. | |
| 24 | 2020-10-05 | Challenger | Parma Challenger | Clay | 16e | #125 |  #73 Laslo Djere | 6/2 6/4 | |
| 25 | 2020-09-27 | GS | Roland Garros | Clay | 64e | #125 |  #104 Federico Coria | 7/5 7/6(6) 7/6(3) | |
| 26 | 2020-08-31 | GS | US Open | Hard (out.) | 64e | #120 | #103 Federico Coria | 2/6 4/6 6/4 6/1 2/0 ret. | |
| 27 | 2020-02-24 | 500 | Mexican Open | Hard (out.) | 16e | #119 |  #7 Alexander Zverev | 7/6(6) 6/1 | |
| 28 | 2020-02-17 | 250 | Delray Beach Open | Hard (out.) | 16e | #131 | #269 Noah Rubin | 6/3 4/3 w/o | |
| 29 | 2020-02-10 | 250 | New York Open | Hard (in.) | DF | #131 | #95 Andreas Seppi | 6/3 6/2 | |
| 30 | 2020-02-10 | 250 | New York Open | Hard (in.) | QF | #131 | #38 Reilly Opelka | 5/7 6/4 6/4 | |
| 31 | 2020-02-10 | 250 | New York Open | Hard (in.) | 8e | #131 | #61 Cameron Norrie | 6/4 6/4 | |
| 32 | 2020-02-10 | 250 | New York Open | Hard (in.) | 16e | #131 | #120 Kevin Anderson | 7/6(6) 6/4 | |
| 33 | 2020-01-27 | Challenger | Newport Beach Challenger | Hard (out.) | 16e | #126 | #221 Christopher Eubanks | 6/4 7/5 | |
| 34 | 2020-01-06 | Challenger |  Canberra Challenger | Hard (out.) | 32e | #127 | Barbados #166 Darian King | 4/6 6/4 6/3 | |
| 35 | 2019-09-23 | 250 |  Chengdu Open | Hard (out.) | 16e | #132 | #97 Bradley Klahn | 4/6 6/3 7/6(2) | |
| 36 | 2019-09-16 | Challenger | Kaohsiung Challenger | Hard (in.) | 8e | #132 | #144 DoNotUse Alex Bolt | 7/5 4/6 7/6(6) | |
| 37 | 2019-09-16 | Challenger | Kaohsiung Challenger | Hard (in.) | 16e | #132 | #447 Renta Tokuda | 6/2 6/3 | |
| 38 | 2019-07-29 | 250 | Los Cabos Open | Hard (out.) | 16e | #134 |  #130 Ernests Gulbis | 6/4 7/6(2) | |
| 39 | 2019-07-22 | 250 | Atlanta Open | Hard (out.) | 16e | #127 | #55 Daniel Evans | 6/1 6/1 | |
| 40 | 2019-07-15 | 250 | Newport HOF Open | Grass | 16e | #117 | #167 Viktor Troicki | 3/6 7/5 7/5 | |
| 41 | 2019-04-08 | Challenger | Taipei Challenger | Hard (in.) | QF | #133 | #203 Go Soeda | 7/6(3) 6/1 | |
| 42 | 2019-04-08 | Challenger | Taipei Challenger | Hard (in.) | 8e | #133 | #162 James Duckworth | 6/2 6/2 | |
| 43 | 2019-04-08 | Challenger | Taipei Challenger | Hard (in.) | 16e | #133 | #308 Tung-Lin Wu | 6/4 6/4 | |
| 44 | 2019-02-18 | 250 | Delray Beach Open | Hard (out.) | 16e | #143 | #34 Steve Johnson | 7/6(3) 6/4 | |
| 45 | 2019-02-11 | 250 | New York Open | Hard (in.) | QF | #123 | #48 Sam Querrey | 6/3 3/6 6/3 | |
| 46 | 2019-02-11 | 250 | New York Open | Hard (in.) | 8e | #123 | #30 Frances Tiafoe | 6/3 7/5 | |
| 47 | 2019-02-11 | 250 | New York Open | Hard (in.) | 16e | #123 |  #128 Ramkumar Ramanathan | 6/3 3/6 6/1 | |
| 48 | 2018-09-24 | 250 | Shenzhen Open | Hard (out.) | 16e | #123 |  #29 Fernando Verdasco | 6/3 6/2 | |
| 49 | 2018-07-16 | 250 | Newport HOF Open | Grass | QF | #155 | #113 Tim Smyczek | 6/1 5/7 6/4 | |
| 50 | 2018-07-16 | 250 | Newport HOF Open | Grass | 8e | #155 | #128 Nicolas Mahut | 6/4 6/4 |
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