Name: Jason Jung
Country: Taipei (CHN)
Birthdate: 15.06.89, 34 years
Height: 173 cm
Weight: 60 kg
Right-handed
ATP ranking: 269
TOP ranking's position: 114 (20.08.18, 483 points)
Points: 217
Prize money: 1147676 $
Matches total: 749
Win: 419
%: 55.94 %
Country: Taipei (CHN)
Birthdate: 15.06.89, 34 years
Height: 173 cm
Weight: 60 kg
Right-handed
ATP ranking: 269
TOP ranking's position: 114 (20.08.18, 483 points)
Points: 217
Prize money: 1147676 $
Matches total: 749
Win: 419
%: 55.94 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 4/2 | 4/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2023 | 42/25 | 40/23 | 0/1 | 2/1 | 0/0 | 0/0 | 0/0 |
| 2022 | 25/28 | 13/14 | 2/5 | 4/4 | 0/0 | 6/5 | 0/0 |
| 2021 | 12/25 | 5/12 | 1/4 | 2/6 | 0/0 | 4/3 | 0/0 |
| 2020 | 16/18 | 7/8 | 2/4 | 7/6 | 0/0 | 0/0 | 0/0 |
| 2019 | 42/32 | 33/22 | 1/1 | 6/4 | 1/1 | 1/4 | 0/0 |
| 2018 | 43/29 | 26/17 | 0/1 | 11/5 | 2/1 | 4/5 | 0/0 |
| 2017 | 22/28 | 14/17 | 4/3 | 2/2 | 0/2 | 2/4 | 0/0 |
| 2016 | 43/23 | 37/18 | 5/3 | 0/1 | 1/1 | 0/0 | 0/0 |
| 2015 | 35/29 | 28/19 | 1/1 | 1/3 | 2/2 | 3/4 | 0/0 |
| 2014 | 46/30 | 35/21 | 2/2 | 8/5 | 1/2 | 0/0 | 0/0 |
| 2013 | 52/25 | 38/17 | 11/5 | 1/1 | 2/1 | 0/1 | 0/0 |
| 2012 | 33/22 | 30/20 | 3/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2011 | 0/2 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2009 | 0/2 | 0/1 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2008 | 0/3 | 0/2 | 0/0 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2007 | 4/4 | 3/3 | 0/0 | 1/1 | 0/0 | 0/0 | 0/0 |
| 2006 | 0/2 | 0/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2005 | 0/1 | 0/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 419/330 | 313/221 | 32/32 | 45/41 | 9/10 | 20/26 | 0/0 |
| perc. % | 55.94 % | 58.61 % | 50 % | 52.33 % | 47.37 % | 43.48 % | 0 % |
Jason Jung / scheduled / last
| no matches found |
Jason Jung form / year 2018 / surface: Hard
Jason Jung / year 2018 / surface: Hard
| 16.11.18 | 1/4 | Kamil Majchrzak | Jason Jung | 7-65, 6-72, 6-3 |  | match details |  Houston Challenger | Hard |
| 15.11.18 | 2nd round | Jason Jung | Enzo Couacaud | 6-1, 7-63 |  | match details | ||
| 13.11.18 | 1st round | Jason Jung | Roberto Cid Subervi | 6-1, 6-1 | | match details | ||
| 26.10.18 | 1/4 | John-Patrick Smith | Jason Jung | 7-63, 6-3 | | match details | Las Vegas | Hard |
| 25.10.18 | 2nd round | Jason Jung | Roberto Ortega-Olmedo | 6-4, 6-4 | | match details | ||
| 23.10.18 | 1st round | Jason Jung | Alexander Sarkissian | 7-65, 6-4 | | match details | ||
| 25.09.18 | 1st round | Fernando Verdasco | Jason Jung | 6-3, 6-2 | | match details |  Shenzhen | Hard |
| 23.09.18 | qual. | Jason Jung | Brayden Schnur | 7-63, 6-2 | | match details | ||
| 22.09.18 | q 1 | Jason Jung | James Ward | 6-4, 7-63 | | match details | ||
| 13.09.18 | 2nd round | Di Wu | Jason Jung | 6-3, 6-0 | | match details | Shanghai Challenger | Hard |
| 11.09.18 | 1st round | Jason Jung | Runhao Hua | 4-6, 7-5, 6-3 | | match details | ||
| 09.09.18 | fin | Yasutaka Uchiyama | Jason Jung | 6-2, 6-2 | | match details | Zhangjiagang Challenger | Hard |
| 08.09.18 | 1/2 | Jason Jung | Alexander Bublik | 7-63, 6-75, 6-0 | | match details | ||
| 07.09.18 | 1/4 | Jason Jung | Akira Santillan | 7-5, 6-2 | | match details | ||
| 06.09.18 | 2nd round | Jason Jung | Zhizhen Zhang | 6-4, 6-4 | | match details | ||
| 05.09.18 | 1st round | Jason Jung | Yuta Shimizu | 6-4, 6-3 | | match details | ||
| 29.07.18 | qual. | Donald Young | Jason Jung | 5-7, 7-5, 1-0, Jason Jung - retired | | match details | Washington | Hard |
| 22.07.18 | qual. | Noah Rubin | Jason Jung | 6-4, 6-2 | | match details | Atlanta | Hard |
| 21.07.18 | q 1 | Jason Jung | Christopher Eubanks | 6-4, 6-3 | | match details | ||
| 14.07.18 | fin | Evgeny Karlovskiy | Jason Jung | 6-3, 6-2 | | match details | Winnetka Challenger | Hard |
| 13.07.18 | 1/2 | Jason Jung | Collin Altamirano | 6-2, 6-2 | | match details | ||
| 12.07.18 | 1/4 | Jason Jung | Mohamed Safwat | 6-2, 3-6, 6-3 | | match details | ||
| 11.07.18 | 2nd round | Jason Jung | Christopher Eubanks | 6-3, 6-75, 6-4 | | match details | ||
| 10.07.18 | 1st round | Jason Jung | Thai Kwiatkowski | 6-3, 6-4 | | match details | ||
| 18.05.18 | 1/4 | Matthew Ebden | Jason Jung | 6-2, 6-2 | | match details |  Busan Challenger | Hard |
| 17.05.18 | 2nd round | Jason Jung | Zhe Li | 7-61, 5-7, 6-1 | | match details | ||
| 14.05.18 | 1st round | Jason Jung | Hiroki Moriya | 6-1, 6-1 | | match details | ||
| 10.05.18 | 2nd round | Renta Tokuda | Jason Jung | 7-66, 6-0 | | match details | Gimcheon Challenger | Hard |
| 08.05.18 | 1st round | Jason Jung | Tatsuma Ito | 6-3, 5-7, 7-64 | | match details | ||
| 03.05.18 | 2nd round | Tsung-Hua Yang | Jason Jung | 6-4, 7-5 | | match details | Seoul Challenger | Hard |
| 01.05.18 | 1st round | Jason Jung | Makoto Ochi | 6-4, 6-0 | | match details | ||
| 07.04.18 | Rubber 1 | Jason Jung | Amirvala Madanchi | 6-3, 6-3 | | match details | .png){kind=small} Davis Cup | Hard |
| 13.03.18 | 1st round | Duckhee Lee | Jason Jung | 4-6, 7-5, 6-4 | | match details | Shenzhen Challenger | Hard |
| 10.03.18 | 1/2 | Hubert Hurkacz | Jason Jung | 6-1, 6-76, 6-4 | | match details | Zhuhai Challenger | Hard |
| 09.03.18 | 1/4 | Jason Jung | Mats Moraing | 6-2, 3-6, 6-3 | | match details | ||
| 07.03.18 | 2nd round | Jason Jung | Miomir Kecmanovic | 3-6, 7-60, 6-4 | | match details | ||
| 05.03.18 | 1st round | Jason Jung | Ze Zhang | 6-0, 6-3 | | match details | ||
| 27.02.18 | 2nd round | Tobias Kamke | Jason Jung | 6-4, 6-2 | | match details |  Yokohama Challenger | Hard |
| 26.02.18 | 1st round | Jason Jung | Yunseong Chung | 6-2, 6-76, 6-4 | | match details | ||
| 21.01.18 | q 1 | Tom Fawcett | Jason Jung | 3-6, 7-5, 6-2 | | match details | Newport Beach | Hard |
| 10.01.18 | q 1 | Alexey Vatutin | Jason Jung | 6-1, 5-7, 6-2 | | match details |  Melbourne | Hard |
| 03.01.18 | 2nd round | Evgeny Karlovskiy | Jason Jung | 6-4, 6-4 | | match details |  Bangkok Challenger | Hard |
| 01.01.18 | 1st round | Jason Jung | Jurgen Zopp | 6-1, 6-2 | | match details |