ITF M15 Monastir | 05/26 09:30 | 25 | Louis Tessa v Yunseong Chung | 1-6,0-6 | |
ITF M15 Monastir | 05/23 08:30 | 29 | Jeremy Beale v Yunseong Chung | 4-6,2-6 | |
ITF M15 Monastir | 05/22 08:30 | 28 | [463] Thomas Fancutt v Yunseong Chung [439] | 5-7,4-6 | |
ITF M15 Monastir | 05/21 08:30 | 27 | Gustavo Heide v Yunseong Chung | 3-6,3-6 | |
ITF M15 Monastir | 05/20 08:25 | 26 | Lukas Neumayer v Yunseong Chung | 1-6,4-6 | |
ITF M15 Monastir | 05/18 09:50 | 25 | Dorian Kos v Yunseong Chung | 2-6,1-6 | |
ITF M15 Monastir | 05/16 08:30 | 29 | [350] Aziz Dougaz v Yunseong Chung [428] | 1-6,5-7 | |
ITF M15 Monastir | 05/15 08:25 | 28 | Omni Kumar v Yunseong Chung | 2-6,5-7 | |
ITF M15 Monastir | 05/14 08:30 | 27 | Santiago F. R. Taverna v Yunseong Chung | 2-6,2-6 | |
ITF M15 Monastir | 05/13 08:30 | 26 | Erik Crepaldi v Yunseong Chung | 4-6,5-7 | |
ITF M15 Monastir | 05/11 08:30 | 25 | [422] Mariano Kestelboim v Yunseong Chung [428] | 7-6,1-6,2-6 | |
ITF M15 Monastir | 05/04 10:30 | 25 | Yunseong Chung v Brandon Holt | 3-6,3-6 | |
ITF M15 Monastir | 05/01 08:30 | 28 | Benjamin Pietri v Yunseong Chung | 6-2,3-6,6-4 | |
ITF M15 Monastir | 04/30 08:25 | 27 | Yunseong Chung v Gilbert Klier Junior | 6-2,3-6,6-1 | |
ITF M15 Monastir | 04/29 08:30 | 26 | Yunseong Chung v Fabio Coelho | 6-1,3-6,7-6 | |
ITF M15 Monastir | 04/27 08:30 | 25 | Yunseong Chung v Omar Giacalone | 6-3,6-7,6-2 | |
ITF M15 Monastir | 04/23 15:30 | 27 | Christoph Negritu v Yunseong Chung | Retired | |
ITF M15 Monastir | 04/22 10:15 | 26 | Eliakim Coulibaly v Yunseong Chung | 5-7,3-6 | |
ITF M15 Monastir | 04/21 08:30 | 25 | Giorgio Ricca v Yunseong Chung | 3-6,3-6 | |
ITF 15 Antalya | 03/04 08:35 | 26 | Yunseong Chung v Sebastian Gima | 6-7,6-2,2-6 | |
ITF 15 Antalya | 03/03 07:00 | 25 | Yunseong Chung v Arda Azkara | 6-0,5-7,6-2 | |
ITF 15 Antalya | 02/24 06:55 | 25 | Yunseong Chung v Sean Cuenin | 6-3,3-6,4-6 | |
ITF 15 Antalya | 02/19 09:45 | 27 | Yunseong Chung v Gabriel Donev | 3-6,4-6 | |
ITF 15 Antalya | 02/18 11:50 | 26 | Yunseong Chung v Georgii Kravchenko | 6-2,5-7,6-3 | |
ITF 15 Antalya | 02/16 08:30 | 25 | [365] Yunseong Chung v Alvaro Lopez San Martin [496] | 6-4,6-3 | |
ITF 15 Antalya | 02/12 10:30 | 27 | [390] Agustin Velotti v Yunseong Chung [365] | 6-3,6-2 | |
ITF 15 Antalya | 02/11 06:45 | 26 | [416] Genaro Alberto Olivieri v Yunseong Chung [365] | 6-4,2-6,3-6 | |
ITF 15 Antalya | 02/10 06:55 | 25 | Sarp Agabigun v Yunseong Chung | 4-6,6-7 | |
Copa Davis | 03/07 11:20 | 45 | [86] Stefano Travaglia v Yunseong Chung [333] | 6-0,6-1 | |
ITF M25 Antalya | 02/26 10:30 | 25 | [404] Yshai Oliel v Yunseong Chung [334] | 6-2,6-4 |
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.