Fixtures

ITF - Tsukuba M15 0-0 27 Yun-Seong Chung vs Hikaru Shiraishi 0-0

Results

ITF - Tsukuba M15 03/28 01:30 26 Yun-Seong Chung v Takuya Kumasaka 7-6,1-6,6-4
ITF - Tsukuba M15 03/27 00:55 25 Yun-Seong Chung v Yu Tanaka 6-3,7-6
ITF - Nishi-Tokyo M15 03/23 01:00 26 Takuya Kumasaka v Yunseong Chung CANC
ITF - Nishi-Tokyo M15 03/22 04:05 27 Duckhee Lee v Yunseong Chung 6-4,6-0
ITF - Nishi-Tokyo M15 03/21 00:55 26 Linang Xiao v Yunseong Chung 2-6,4-6
ITF - Nishi-Tokyo M15 03/20 02:30 25 Masamichi Imamura v Yunseong Chung 6-7,2-6
Challenger New Delhi 02/25 11:45 14 Siddharth Vishwakarma v Yunseong Chung Retired
Challenger Pune 02/19 05:30 19 Alexey Zakharov v Yunseong Chung 6-3,5-7,6-4
Challenger Pune 02/18 08:15 14 [379] Yunseong Chung v Rio Noguchi [334] 7-5,7-6
Challenger Bengaluru 02/12 06:20 19 [307] Chun Hsin Tseng v Yunseong Chung [381] 7-5,4-6,6-2
Challenger Bengaluru 02/11 09:30 14 Adil Kalyanpur v Yunseong Chung 4-6,3-6
Challenger Nonthaburi 01/08 05:40 19 Yunseong Chung v Christian Langmo 2-6,0-6

Wikipedia - Chung Yun-seong

Chung Yun-seong (Korean: 정윤성; born 27 March 1998) is a South Korean tennis player.

Chung has a career high ATP singles ranking of No. 233 achieved on 22 July 2019. He also has a career high ATP doubles ranking of No. 129 achieved on 22 May 2023. Chung has won three doubles ATP Challenger titles as well as four ITF singles and five doubles titles.

On the junior tour, Chung had a career-high combined ranking of 3 achieved on 21 March 2016. Chung was a semifinalist at the 2016 Australian Open boys' singles event and the 2015 US Open boys' singles event where he fell to both eventual champions Oliver Anderson and Taylor Fritz, respectively. Chung was also a singles finalist at the Osaka Mayor's Cup in 2014.

He and Orlando Luz lost to Yishai Oliel of Israel and Patrik Rikl of the Czech Republic in the final of the 2016 French Open boys' doubles, 6–3, 6–4.