ITF Canada F3 06/25 18:00 28 Jason Jung v Finn Tearney 7-5,6-1
ITF Canada F3 06/24 19:35 27 Jason Jung v Alexios Halebian 6-3,6-3
ITF Canada F3 06/23 17:00 26 Jason Jung v Alexander Day 6-4,6-2
Challenger Leon 03/30 20:00 25 Jason Jung v Joao Souza 1-6,6-7
Challenger San Luis Potosi 03/22 21:10 25 Jason Jung v Hans Podlipnik-Castillo 4-6,0-6
Challenger Morelos 02/17 16:00 26 Jason Jung v Alexander Sarkissian 7-6,4-6,5-7
Challenger Morelos 02/15 16:00 25 Jason Jung v Sekou Bangoura 6-3,6-2
Challenger Dallas 02/02 16:30 25 Grega Zemlja v Jason Jung 6-4,4-6,7-6
Challenger Bangkok 4 01/06 06:15 26 Jason Jung v Yuichi Sugita 3-6,4-6
Challenger Bangkok 4 01/05 07:45 25 Maximilian Neuchrist v Jason Jung 4-6,7-5,2-6
Challenger Bangkok 4 01/04 03:00 44 Jason Jung v Daniil Medvedev 6-4,6-3
Challenger Fairfield 10/15 19:40 26 Jason Jung v Blaz Kavcic 5-7,3-6
Challenger Fairfield 10/13 20:20 25 Sekou Bangoura v Jason Jung 4-6,6-7
US Open Qual 08/25 20:25 44 Jason Jung v Uladzimir Ignatik 1-6,5-7
ATP Newport Qual 07/12 19:35 46 Ryan Haviland v Jason Jung 6-3,6-7,2-6
Wimbledon Qual 06/22 10:00 44 Marius Copil v Jason Jung 6-3,7-6
ITF USA F13 04/19 18:30 - Darian King v Jason Jung 3-6,6-4,4-6
ITF USA F13 04/18 15:00 - Jason Jung v Eric Quigley 6-4,7-5
ITF USA F13 04/16 20:15 - Mico Santiago v Jason Jung Retired
ITF USA F13 04/16 15:00 - Alexios Halebian v Jason Jung 2-6,3-6
Challenger Leon 04/07 22:20 25 Jason Jung v Nils Langer 2-6,6-7
ITF USA F11 03/28 22:00 - Jason Jung v Frances Tiafoe 7-5,1-6,4-6
ITF USA F11 03/27 23:10 - Taylor Fritz v Jason Jung 3-6,3-6
ITF USA F11 03/25 19:50 - Maxime Tabatruong v Jason Jung 3-6,2-6
Challenger Drummondville 03/17 14:00 25 Jason Jung v Alejandro Falla 2-6,6-1,1-6
Challenger Morelos 02/19 16:30 27 Jason Jung v Damir Dzumhur 4-6,1-6
Challenger Morelos 02/18 19:00 26 Jason Jung v Bastian Trinker 6-1,6-4
Challenger Morelos 02/17 19:05 25 Austin Krajicek v Jason Jung 7-5,3-6,4-6
Challenger Dallas 02/04 16:30 26 Jason Jung v Teymuraz Gabashvili 4-6,3-6
ITF USA F4 01/17 21:10 - Jason Jung v Takanyi Garanganga 7-6,6-7,4-6

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.