| Challenger - Shenzhen 2 | 11/01 04:00 | 27 | [133] Jason Jung v Frederico Ferreira Silva [202] | 6-7,6-4,4-6 | |
| Challenger - Shenzhen 2 | 10/31 02:00 | 26 | [133] Jason Jung v Tung-Lin Wu [234] | 7-6,6-4 | |
| Challenger - Shenzhen 2 | 10/29 06:25 | 25 | [133] Jason Jung v Bruno Santanna [410] | 6-4,6-3 | |
| Challenger - Liuzhou | 10/25 02:00 | 27 | [353] Borna Gojo v Jason Jung [134] | 7-6,6-1 | |
| Challenger - Liuzhou | 10/24 02:00 | 26 | Jie Cui v Jason Jung | 5-7,4-6 | |
| Challenger - Liuzhou | 10/23 03:55 | 25 | [172] Toshihide Matsui v Jason Jung [134] | 2-6,2-6 | |
| Challenger - Ningbo | 10/15 08:40 | 25 | [135] Jason Jung v Akira Santillan [246] | 7-6,6-7,5-7 | |
| ATP - Pequim | 09/28 08:00 | 64 | [132] Jason Jung v Dominik Koepfer [85] | 3-6,7-6,4-6 | |
| ATP - Chengdu | 09/23 06:30 | 25 | [97] Bradley Klahn v Jason Jung [132] | 4-6,6-3,7-6 | |
| ATP - Chengdu | 09/22 05:10 | 164 | [366] Luke Saville v Jason Jung [132] | 4-6,2-6 | |
| ATP - Chengdu | 09/21 06:50 | 64 | [242] Akira Santillan v Jason Jung [132] | 5-7,6-3,6-7 | |
| Challenger - Kaohsiung | 09/19 10:55 | 26 | [144] Alex Bolt v Jason Jung [132] | 7-5,4-6,7-6 | |
| Challenger - Kaohsiung | 09/18 10:00 | 25 | [444] Renta Tokuda v Jason Jung [132] | 2-6,3-6 | |
| Taça Davis | 09/15 04:45 | - | Pak Long Yeung v Jason Jung | Cancelled | |
| Taça Davis | 09/14 06:00 | - | Chak L C Wong v Jason Jung | 1-6,2-6 | |
| Open dos EUA | 08/22 15:00 | 45 | [140] Jiri Vesely v Jason Jung [121] | 6-4,5-7,7-5 | |
| Open dos EUA | 08/20 16:15 | 44 | [198] Donald Young v Jason Jung [121] | 3-6,7-6,5-7 | |
| Challenger - Vancouver | 08/18 21:15 | 29 | [76] Ricardas Berankis v Jason Jung [129] | 6-3,5-7,6-4 | |
| Challenger - Vancouver | 08/17 22:00 | 28 | [195] Maxime Janvier v Jason Jung [129] | 5-7,6-7 | |
| Challenger - Vancouver | 08/16 23:35 | 27 | [129] Jason Jung v Marc Polmans [166] | 5-7,6-4,6-4 | |
| Challenger - Vancouver | 08/15 19:30 | 26 | [125] Evgeny Donskoy v Jason Jung [129] | 6-4,3-6,4-6 | |
| Challenger - Vancouver | 08/13 17:00 | 25 | [186] Ruben Bemelmans v Jason Jung [129] | 4-6,2-6 | |
| ATP - Los Cabos | 07/30 03:10 | 25 | [129] Ernests Gulbis v Jason Jung [134] | 6-4,7-6 | |
| ATP - Los Cabos | 07/29 01:40 | 164 | [138] Jason Jung v Danilo Petrovic [250] | 6-4,7-6 | |
| ATP - Los Cabos | 07/28 01:25 | 64 | Jason Jung v Gerardo L Villasenor | 6-1,3-6,6-0 | |
| ATP - Atlanta | 07/23 19:30 | 25 | [55] Daniel Evans v Jason Jung [138] | 6-1,6-1 | |
| ATP - Atlanta | 07/21 18:50 | 164 | [187] Donald Young v Jason Jung [127] | 1-6,6-7 | |
| ATP - Atlanta | 07/20 14:00 | 64 | [150] Alex Bolt v Jason Jung [127] | 6-7,3-6 | |
| ATP - Newport | 07/16 17:00 | 25 | [167] Viktor Troicki v Jason Jung [127] | 3-6,7-5,7-5 | |
| Challenger - Winnetka | 07/13 01:20 | 27 | [117] Jason Jung v Thanasi Kokkinakis [192] | 6-7,1-6 |
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.