Challenger - Dallas 02/06 16:00 25 [250] Christian Harrison v Jason Jung [123] 7-6,6-7,5-7
Challenger - Cleveland 01/30 18:30 25 [115] Jason Jung v Jeffrey John Wolf [291] 3-6,4-6
Challenger - Newport Beach 01/25 21:35 27 [120] Jason Jung v Brayden Schnur [196] 2-6,1-6
Challenger - Newport Beach 01/24 19:45 26 [120] Jason Jung v Dennis Novikov [257] 4-6,6-4,7-5
Challenger - Newport Beach 01/22 19:20 25 [120] Jason Jung v Santiago Giraldo [253] 7-6,7-6
Australian Open 01/10 00:50 45 [120] Jason Jung v Hiroki Moriya [185] 2-6,3-6
Australian Open 01/07 23:00 44 [120] Jason Jung v Gian Marco Moroni [227] 3-6,6-1,7-6
ATP - Pune 12/29 10:40 64 [124] Jason Jung v Saketh Myneni [259] 1-6,7-5,2-6
Challenger - Houston 11/16 16:00 27 [221] Kamil Majchrzak v Jason Jung [130] 7-6,6-7,6-3
Challenger - Houston 11/15 18:45 26 [307] Enzo Couacaud v Jason Jung [130] 1-6,6-7
Challenger - Houston 11/13 20:05 25 [239] Roberto Cid Subervi v Jason Jung [130] 1-6,1-6
Challenger - Knoxville 11/08 19:20 26 [172] Nikola Milojevic v Jason Jung [128] 6-0,6-4
Challenger - Knoxville 11/07 18:05 25 Timo Stodder v Jason Jung 1-6,3-6
Challenger - Charlottesville 10/29 18:30 25 [135] Bjorn Fratangelo v Jason Jung [126] 6-4,6-1
Challenger - Las Vegas 10/26 18:00 27 [235] John-Patrick Smith v Jason Jung [127] 7-6,6-3
Challenger - Las Vegas 10/25 19:20 26 [315] Roberto O-Olmedo v Jason Jung [127] 4-6,4-6
Challenger - Las Vegas 10/23 18:00 25 [307] Alexander Sarkissian v Jason Jung [127] 6-7,4-6
Challenger - Calgary 10/17 19:55 26 Borna Gojo v Jason Jung 7-6,6-2
Challenger - Calgary 10/16 02:05 25 [382] Steven Diez v Jason Jung [128] 3-6,7-6,3-6
ATP Shenzhen 09/25 15:20 25 [122] Jason Jung v Fernando Verdasco [28] 3-6,2-6
ATP Shenzhen 09/23 07:00 164 [123] Jason Jung v Brayden Schnur [261] 7-6,6-2
ATP Shenzhen 09/22 07:00 64 [123] Jason Jung v James Ward [223] 6-4,7-6
Challenger Kaohsiung 09/20 10:00 26 [123] Jason Jung v Duckhee Lee [232] 6-7,4-6
Challenger Kaohsiung 09/18 10:00 25 [123] Jason Jung v Yunseong Chung [296] 6-3,6-4
Challenger - Shanghai 09/13 05:05 26 [121] Jason Jung v Di Wu [289] 3-6,0-6
Challenger - Shanghai 09/11 03:00 25 Jason Jung v Runhao Hua 4-6,7-5,6-3
Challenger Zhangjiagang 09/09 04:00 29 [115] Jason Jung v Yasutaka Uchiyama [271] 2-6,2-6
Challenger Zhangjiagang 09/08 05:25 28 [115] Jason Jung v Alexander Bublik [203] 7-6,6-7,6-0
Challenger Zhangjiagang 09/07 02:30 27 [115] Jason Jung v Akira Santillan [283] 7-5,6-2
Challenger Zhangjiagang 09/06 04:40 26 [115] Jason Jung v Zhizhen Zhang [342] 6-4,6-4

Wikipedia - Jason Jung

Jason Jung (Chinese: 莊吉生; pinyin: Zhuāng Jíshēng; Pe̍h-ōe-jī: Chng Kit-seng; Taiwanese Mandarin: [tswáŋ tɕǐ sə́ŋ]; born 15 June 1989) is an American-born Taiwanese professional tennis player who represents the team Chinese Taipei. He has a career high ATP singles ranking of world No. 114 achieved on 30 July 2018 and has won four ATP Challenger titles. Jung has attended the University of Michigan.

History

Jung's 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 world number 5 Kevin Anderson in the first round, followed by 7th seed Cameron Norrie in the second before upsetting defending champion and 3rd seed Reilly Opelka in the quarterfinals. He was eliminated in the semifinals by Italian veteran Andreas Seppi in straight sets.