Challenger - Taipei 04/18 05:10 25 [160] Jason Jung v Lukas Lacko [106] 1-6,4-6
Challenger - León 03/29 17:00 25 [304] Roberto Quiroz v Jason Jung [170] 6-1,6-2
Challenger - Guadalajara 03/25 21:30 28 [214] Mirza Basic v Jason Jung [170] 6-3,6-3
Challenger - Guadalajara 03/24 22:00 27 [170] Jason Jung v Mitchell Krueger [191] 6-1,6-3
Challenger - Guadalajara 03/23 20:00 26 [170] Jason Jung v John-Patrick Smith [223] 6-4,7-6
Challenger - Guadalajara 03/21 21:20 25 [170] Jason Jung v Hans Hach Verdugo [255] 6-2,7-6
Challenger - Zhuhai 03/08 03:00 26 [170] Jason Jung v Luca Vanni [139] 4-6,4-6
Challenger - Zhuhai 03/06 05:55 25 [162] Jan Satral v Jason Jung [170] 6-1,1-6,2-6
Challenger - Yokohama 02/28 01:00 25 Soon Woo Kwon v Jason Jung 6-3,7-6
Taça Davis 02/17 07:55 - Jason Jung v Yibing Wu Retired
Challenger - Launceston 02/06 02:45 25 Jason Jung v Maverick Banes 4-6,6-4,3-6
Challenger - Burnie 01/31 08:35 25 Luke Saville v Jason Jung 2-6,6-1,6-4
Challenger - Kaohsiung 09/21 06:00 26 Jason Jung v Amir Weintraub 3-6,4-6
Challenger - Kaohsiung 09/20 06:30 25 Yoshihito Nishioka v Jason Jung 4-6,3-6
Challenger - Nanchang 09/16 08:30 28 Hyeon Chung v Jason Jung 6-3,6-4
Challenger - Nanchang 09/15 03:00 27 Jason Jung v Jordan Thompson 7-6,6-3
Challenger - Nanchang 09/14 03:40 26 Jason Jung v Yasutaka Uchiyama 6-3,7-6
Challenger - Nanchang 09/13 07:55 25 Jason Jung v Yecong He 6-2,6-3
Challenger - Xangai 09/12 01:00 29 Jason Jung v Henri Laaksonen 3-6,3-6
Challenger - Xangai 09/10 03:00 28 Jordan Thompson v Jason Jung 4-6,4-6
Challenger - Xangai 09/09 03:00 27 Go Soeda v Jason Jung 2-6,5-7
Challenger - Xangai 09/08 06:10 26 Yuya Kibi v Jason Jung 7-6,4-6,3-6
Challenger - Xangai 09/06 02:00 25 Denys Molchanov v Jason Jung 2-6,3-6
Challenger - Astana 2 07/26 05:00 25 Daniil Medvedev v Jason Jung 7-6,4-6,6-3
Challenger - Astana 2 07/25 05:00 54 Jason Jung v Vitaly Kozyukov 6-1,6-1
Challenger - Astana 2 07/23 13:00 46 Jason Jung v Yaraslav Shyla 7-5,6-4
ITF - Canadá F4 07/01 19:00 27 Blake Mott v Jason Jung 3-6,6-4,7-5
ITF - Canadá F4 06/30 19:50 26 Alexis Galarneau v Jason Jung 2-6,1-6
ITF - Canadá F4 06/29 17:00 25 Michael Genender v Jason Jung 2-6,3-6
ITF - Canadá F3 06/26 19:00 29 Jason Jung v Peter Polansky 1-6,4-6

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.