ITF USA F4 01/16 19:55 - Mitchell Krueger v Jason Jung 7-6,6-7,4-6
ITF USA F4 01/15 19:40 - Eric James Johnson v Jason Jung 3-6,1-6
ITF USA F2 01/12 03:00 - Jason Jung v Mitchell Krueger 1-6,2-6
ITF USA F2 01/11 22:00 - Taylor Fritz v Jason Jung 6-1,6-7,4-6
ITF USA F2 01/09 21:25 - Jason Jung v Alexander Ward 7-6,6-4
ITF USA F2 01/07 19:50 - Jason Jung v JC Aragone 6-1,6-1
ITF Thailand F10 12/04 03:00 - Jason Jung v Jacob Grills 6-2,4-6,5-7
ITF Thailand F10 12/03 03:00 - Jason Jung v Rigele Te 6-3,6-1
ITF Thailand F10 11/28 03:00 - Jason Jung v Yasutaka Uchiyama 3-6,6-3,6-2
ITF Thailand F10 11/27 04:00 - Warit Sornbutnark v Jason Jung 3-6,2-6
ITF Thailand F10 11/26 05:20 - Kittiphong Wachiramanowong v Jason Jung 5-7,3-6
ITF Thailand F10 11/25 06:40 - Nawakarn Khunjan v Jason Jung 3-6,0-6
ITF USA F26 09/27 19:00 - Jason Jung v Alexander Sarkissian 3-6,1-6
ITF USA F26 09/25 17:00 - Jason Jung v Deiton Baughman 6-1,5-7,6-4
ITF USA F26 09/24 18:40 - Jason Jung v Joseph Digiulio 6-3,6-3
Challenger Shanghai 09/03 02:00 25 Go Soeda v Jason Jung 6-2,3-6,6-2
Challenger Granby 07/17 19:50 26 Jason Jung v Vincent Millot 3-6,5-7
Challenger Granby 07/15 15:55 25 Jason Jung v Steven Diez 6-2,6-4
ITF China F6 06/04 03:15 - Zhaoyi Cao v Jason Jung Retired
Challenger Shenzhen 04/22 04:00 25 Jason Jung v Saketh Myneni 3-6,2-6
Challenger Shenzhen Qual 04/21 02:00 44 Liang-Chi Huang v Jason Jung 4-6,4-6
ITF USA F11 04/11 15:00 - Filip Krajinovic v Jason Jung 6-1,6-4
ITF USA F11 04/10 15:00 - Ernesto Escobedo v Jason Jung 5-7,4-6
ITF USA F11 04/09 19:55 - Matthew Kandath v Jason Jung 1-6,3-6
ITF USA F9 03/23 21:00 - Jason Jung v Marcos Giron 4-6,6-4,4-6
ITF USA F9 03/22 23:00 - Daniel Nguyen v Jason Jung 5-7,2-6
ITF USA F9 03/21 22:10 - Jason Jung v Taylor Fritz 6-4,6-4
ITF USA F9 03/20 19:50 - Jason Jung v Sekou Bangoura 6-3,6-4
ITF USA F9 03/18 17:00 - Jason Jung v Clay Thompson 6-3,6-7,6-3
Challenger Morelos 02/19 17:20 26 Rajeev Ram v Jason Jung 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.