Name: Yunseong Chung
Country: Republic of Korea
Birthdate: 27.03.98, 26 years
ATP ranking: 370
TOP ranking's position: 233 (22.07.19, 190 points)
Points: 135
Prize money: 173512 $
Matches total: 507
Win: 293
%: 57.79 %
Country: Republic of Korea
Birthdate: 27.03.98, 26 years
ATP ranking: 370
TOP ranking's position: 233 (22.07.19, 190 points)
Points: 135
Prize money: 173512 $
Matches total: 507
Win: 293
%: 57.79 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 10/9 | 10/9 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2023 | 30/22 | 20/16 | 5/4 | 3/1 | 0/0 | 2/1 | 0/0 |
| 2022 | 34/25 | 23/17 | 7/4 | 4/4 | 0/0 | 0/0 | 0/0 |
| 2021 | 28/15 | 21/10 | 5/4 | 2/1 | 0/0 | 0/0 | 0/0 |
| 2020 | 3/6 | 1/2 | 0/2 | 2/2 | 0/0 | 0/0 | 0/0 |
| 2019 | 28/28 | 24/21 | 2/2 | 1/2 | 0/1 | 1/2 | 0/0 |
| 2018 | 59/28 | 41/19 | 13/6 | 5/2 | 0/1 | 0/0 | 0/0 |
| 2017 | 20/25 | 19/20 | 1/1 | 0/2 | 0/2 | 0/0 | 0/0 |
| 2016 | 42/29 | 36/25 | 1/1 | 3/1 | 0/1 | 2/1 | 0/0 |
| 2015 | 24/15 | 14/10 | 7/4 | 0/0 | 0/0 | 3/1 | 0/0 |
| 2014 | 11/8 | 9/6 | 1/1 | 0/0 | 0/0 | 1/1 | 0/0 |
| 2013 | 4/4 | 4/4 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 293/214 | 222/159 | 42/29 | 20/15 | 0/5 | 9/6 | 0/0 |
| perc. % | 57.79 % | 58.27 % | 59.15 % | 57.14 % | 0 % | 60 % | 0 % |
Yunseong Chung / scheduled / last
| no matches found |
Yunseong Chung form / surface: Hard
Yunseong Chung / surface: Hard
| 18.04.24 | 2nd round | Lloyd Harris | Yunseong Chung | 6-4, 6-4 |  | match details |  Gwangju Challenger | Hard |
| 16.04.24 | 1st round | Yunseong Chung | Paul Jubb | 6-4, 4-6, 6-3 |  | match details | ||
| 09.04.24 | 1st round | Mark Lajal | Yunseong Chung | 6-3, 6-2 | | match details | Busan Challenger | Hard |
| 08.04.24 | qual. | Yunseong Chung | Hiroki Moriya | 6-4, 7-64 | | match details | ||
| 07.04.24 | q 1 | Yunseong Chung | Stefanos Sakellaridis | 1-6, 6-2, 6-3 | | match details | ||
| 29.03.24 | 1/4 | Hikaru Shiraishi | Yunseong Chung | 2-6, 6-4, 6-4 | | match details |  M15 Tsukuba | Hard |
| 28.03.24 | 2nd round | Yunseong Chung | Takuya Kumasaka | 7-64, 1-6, 6-4 | | match details | ||
| 27.03.24 | 1st round | Yunseong Chung | Yu Tanaka | 6-3, 7-64 | | match details | ||
| 22.03.24 | 1/4 | Duckhee Lee | Yunseong Chung | 6-4, 6-0 | | match details | M15 Nishi | Hard |
| 21.03.24 | 2nd round | Yunseong Chung | Linang Xiao | 6-2, 6-4 | | match details | ||
| 20.03.24 | 1st round | Yunseong Chung | Masamichi Imamura | 7-65, 6-2 | | match details | ||
| 25.02.24 | q 1 | Siddharth Vishwakarma | Yunseong Chung | 1-6, 6-4, 5-2, Yunseong Chung - retired | | match details |  New Delhi | Hard |
| 19.02.24 | qual. | Alexey Zakharov | Yunseong Chung | 6-3, 5-7, 6-4 | | match details | Pune Challenger | Hard |
| 18.02.24 | q 1 | Yunseong Chung | Rio Noguchi | 7-5, 7-65 | | match details | ||
| 12.02.24 | qual. | Chun Hsin Tseng | Yunseong Chung | 7-5, 4-6, 6-2 | | match details | Bengaluru Challenger | Hard |
| 11.02.24 | q 1 | Yunseong Chung | Adil Kalyanpur | 6-4, 6-3 | | match details | ||
| 08.01.24 | qual. | Christian Langmo | Yunseong Chung | 6-2, 6-0 | | match details |  Nonthaburi 2 | Hard |
| 07.01.24 | q 1 | Yunseong Chung | Congsup Congcar | 7-5, 6-1 | | match details | ||
| 31.12.23 | q 1 | Kaichi Uchida | Yunseong Chung | 6-4, 6-0 | | match details | Nonthaburi 1 | Hard |
| 20.11.23 | 1st round | Luca Nardi | Yunseong Chung | 6-2, 6-4 | | match details | Yokohama Challenger | Hard |
| 19.11.23 | qual. | Yasutaka Uchiyama | Yunseong Chung | 6-4, 6-75, 7-65 | | match details | ||
| 19.11.23 | q 1 | Yunseong Chung | Fajing Sun | 6-4, 6-4 | | match details | ||
| 13.07.23 | 2nd round | Yuta Shimizu | Yunseong Chung | 6-3, 5-7, 6-3 | | match details |  Chicago Challenger | Hard |
| 12.07.23 | 1st round | Yunseong Chung | Abedallah Shelbayh | 6-3, 6-4 | | match details | ||
| 10.07.23 | qual. | Yunseong Chung | Thai Kwiatkowski | 6-0, 3-6, 6-3 | | match details | ||
| 09.07.23 | q 1 | Yunseong Chung | Andrew Fenty | 7-5, 6-2 | | match details | ||
| 04.07.23 | qual. | Ernesto Escobedo | Yunseong Chung | 6-4, 6-3 | | match details | Bloomfield Hills | Hard |
| 03.07.23 | q 1 | Yunseong Chung | Strong Kirchheimer | 6-4, 7-613 | | match details | ||
| 15.06.23 | 2nd round | Renta Tokuda | Yunseong Chung | 7-64, 6-1 | | match details | M25 Changwon | Hard |
| 14.06.23 | 1st round | Yunseong Chung | Yeongseok Jeong | 6-2, 6-2 | | match details | ||
| 09.06.23 | 2nd round | Yunseong Chung | Sanhui Shin | 7-5, 3-0, Sanhui Shin - retired | | match details | M25 Daegu | Hard |
| 09.06.23 | 1/4 | Uisung Park | Yunseong Chung | 7-61, 6-3 | | match details | ||
| 07.06.23 | 1st round | Yunseong Chung | Seokhyeon Chu | 6-3, 6-1 | | match details | ||
| 11.05.23 | 2nd round | Gabriel Diallo | Yunseong Chung | 7-65, 7-64 | | match details | Busan Challenger | Hard |
| 09.05.23 | 1st round | Yunseong Chung | Tung-Lin Wu | 7-5, 6-2 | | match details | ||
| 05.05.23 | 2nd round | Jason Jung | Yunseong Chung | 3-6, 6-3, 6-4 | | match details | Gwangju Challenger | Hard |
| 02.05.23 | 1st round | Yunseong Chung | Kaichi Uchida | 7-64, 6-3 | | match details | ||
| 29.04.23 | 1/2 | Aleksandar Vukic | Yunseong Chung | 7-65, 6-1 | | match details | Seoul Challenger | Hard |
| 28.04.23 | 1/4 | Yunseong Chung | Rinky Hijikata | 6-2, 6-3 | | match details | ||
| 27.04.23 | 2nd round | Yunseong Chung | Jordan Thompson | 6-4, 6-3 | | match details | ||
| 26.04.23 | 1st round | Yunseong Chung | Peter Gojowczyk | 6-2, 6-3 | | match details | ||
| 20.04.23 | 2nd round | Kasidit Samrej | Yunseong Chung | 7-5, Yunseong Chung - retired | | match details |  M25 Jakarta | Hard |
| 19.04.23 | 1st round | Yunseong Chung | Fajing Sun | 6-3, 6-4 | | match details | ||
| 13.04.23 | 2nd round | Fitriadi M Rifqi | Yunseong Chung | 3-6, 6-4, 3-2, Yunseong Chung - retired | | match details | M25 Jakarta | Hard |
| 12.04.23 | 1st round | Yunseong Chung | Andrew Rogers | 6-4, 6-2 | | match details | ||
| 07.04.23 | 1/4 | Yu Hsiou Hsu | Yunseong Chung | 6-1, 6-4 | | match details | M25 Kashiwa | Hard |
| 06.04.23 | 2nd round | Yunseong Chung | Daisuke Sumizawa | 6-2, 6-2 | | match details | ||
| 04.04.23 | 1st round | Yunseong Chung | Takeru Yuzuki | 6-2, 6-2 | | match details | ||
| 29.03.23 | 1st round | Kazuki Nishiwaki | Yunseong Chung | 6-2, 6-3 | | match details | M25 Tsukuba | Hard |
| 28.02.23 | 1st round | Miljan Zekic | Yunseong Chung | 6-3, 6-4 | | match details | Pune Challenger | Hard |
| 27.02.23 | qual. | Yunseong Chung | Jay Clarke | 7-60, 6-3 | | match details | ||
| 26.02.23 | q 1 | Yunseong Chung | Nitin Kumar Sinha | 6-2, 6-2 | | match details | ||
| 20.02.23 | qual. | Nikola Milojevic | Yunseong Chung | 7-62, 6-4 | | match details | Bengaluru Challenger | Hard |
| 19.02.23 | q 1 | Yunseong Chung | Dayne Kelly | 7-65, 6-4 | | match details | ||
| 12.02.23 | q 1 | Aleksandr Braynin | Yunseong Chung | 7-5, 6-4 | | match details |  Manama Challenger | Hard |
| 25.11.22 | 1/4 | Yosuke Watanuki | Yunseong Chung | 6-2, 5-2, Yunseong Chung - retired | | match details | Yokkaichi Challenger | Hard |
| 24.11.22 | 2nd round | Yunseong Chung | Mukund Sasikumar | 6-1, 6-4 | | match details | ||
| 21.11.22 | 1st round | Yunseong Chung | Dane Sweeny | 7-5, 6-2 | | match details | ||
| 01.11.22 | 2nd round | Kaichi Uchida | Yunseong Chung | 7-64, 6-3 | | match details | Yokohama Challenger | Hard |
| 31.10.22 | 1st round | Yunseong Chung | Masamichi Imamura | 6-3, 6-4 | | match details | ||
| 20.10.22 | 2nd round | Seong Chan Hong | Yunseong Chung | 6-3, 7-5 | | match details | Busan Challenger | Hard |
| 18.10.22 | 1st round | Yunseong Chung | Chun Hsin Tseng | 7-5, 7-5 | | match details | ||
| 04.10.22 | 1st round | Ji Sung Nam | Yunseong Chung | 1-6, 6-3, 7-5 | | match details | Gwangju Challenger | Hard |
| 03.10.22 | qual. | Yunseong Chung | Seita Watanabe | 6-2, 7-61 | | match details | ||
| 27.09.22 | 1st round | Soon-Woo Kwon | Yunseong Chung | 7-65, 6-73, 6-1 | | match details | Seoul | Hard |
| 25.09.22 | qual. | Yunseong Chung | Shintaro Mochizuki | 7-5, 6-4 | | match details | ||
| 24.09.22 | q 1 | Yunseong Chung | Dalibor Svrcina | 6-3, 4-6, 6-1 | | match details | ||
| 05.09.22 | 1st round | Yosuke Watanuki | Yunseong Chung | 7-5, 6-72, 5-3, Yunseong Chung - retired | | match details | Nonthaburi 3 | Hard |
| 30.08.22 | 1st round | Billy Harris | Yunseong Chung | 6-3, 4-6, 6-4 | | match details | Nonthaburi 2 | Hard |
| 29.08.22 | qual. | Yunseong Chung | Timo Legout | 7-62, 6-2 | | match details | ||
| 28.08.22 | q 1 | Yunseong Chung | Dayne Kelly | 6-4, 3-6, 6-4 | | match details | ||
| 08.08.22 | q 1 | Enzo Couacaud | Yunseong Chung | 6-4, 6-2 | | match details | Chicago Challenger | Hard |
| 01.08.22 | 1st round | Roberto Quiroz | Yunseong Chung | 6-2, 5-7, 6-1 | | match details | Lexington Challenger | Hard |
| 23.06.22 | 2nd round | Stefan Dostanic | Yunseong Chung | 7-65, 2-1, Yunseong Chung - retired | | match details | M25 Tulsa | Hard |
| 21.06.22 | 1st round | Yunseong Chung | Ezekiel Clark | 6-4, 6-3 | | match details | ||
| 17.06.22 | 1/4 | Martin Damm | Yunseong Chung | 2-6, 6-2, 7-62 | | match details |  M25 Santo | Hard |
| 16.06.22 | 2nd round | Yunseong Chung | Arvid Nordquist | 7-64, 6-4 | | match details | ||
| 15.06.22 | 1st round | Yunseong Chung | Alejandro Jose Gandini | 6-2, 6-2 | | match details | ||
| 05.06.22 | q 1 | Matija Pecotic | Yunseong Chung | 0-6, 6-3, 6-2 | | match details | Orlando Challenger | Hard |
| 30.05.22 | qual. | Adrian Menendez-Maceiras | Yunseong Chung | 1-6, 6-0, 6-4 | | match details | Little Rock | Hard |
| 29.05.22 | q 1 | Yunseong Chung | Christian Langmo | 3-0, Christian Langmo - retired | | match details | ||
| 30.04.22 | 1/2 | Adrian Menendez-Maceiras | Yunseong Chung | 1-6, 6-1, 6-4 | | match details |  Morelos Challenger | Hard |
| 29.04.22 | 1/4 | Yunseong Chung | Keegan Smith | 6-1, 6-4 | | match details | ||
| 27.04.22 | 2nd round | Yunseong Chung | Aleksandar Kovacevic | 3-6, 7-5, 6-4 | | match details | ||
| 25.04.22 | 1st round | Yunseong Chung | Bernard Tomic | 6-3, 3-6, 6-4 | | match details | ||
| 06.04.22 | 2nd round | Jc Aragone | Yunseong Chung | 7-5, 6-4 | | match details |  Salinas Challenger | Hard |
| 05.04.22 | 1st round | Yunseong Chung | Blu Baker | 6-2, 6-3 | | match details | ||
| 23.01.22 | fin | Harold Mayot | Yunseong Chung | 6-4, 0-6, 6-4 | | match details |  M25 Monastir | Hard |
| 22.01.22 | 1/2 | Yunseong Chung | Titouan Droguet | 7-66, 6-4 | | match details | ||
| 21.01.22 | 1/4 | Yunseong Chung | Gleb Sakharov | 6-3, 6-3 | | match details | ||
| 20.01.22 | 2nd round | Yunseong Chung | Jumpei Yamasaki | 6-4, 6-2 | | match details | ||
| 18.01.22 | 1st round | Yunseong Chung | Alexander Donski | 6-4, 6-2 | | match details | ||
| 15.01.22 | 1/4 | Skander Mansouri | Yunseong Chung | 4-6, 6-3, 6-4 | | match details | M25 Monastir | Hard |
| 14.01.22 | 2nd round | Yunseong Chung | Josh Reid | 6-2, 6-0 | | match details | ||
| 12.01.22 | 1st round | Yunseong Chung | Skander Mezouar | 6-0, 6-2 | | match details | ||
| 03.11.21 | 2nd round | Arnaud Bovy | Yunseong Chung | 6-4, 3-6, 6-4 | | match details |  M25 Meitar | Hard |
| 02.11.21 | 1st round | Yunseong Chung | Joshua Luck | 6-3, 6-1 | | match details | ||
| 21.08.21 | q 1 | Yosuke Watanuki | Yunseong Chung | 6-3, 7-63 | | match details | Winston-Salem | Hard |
| 06.08.21 | 1/4 | Eliot Spizzirri | Yunseong Chung | 6-4, 6-4 | | match details | M25 Decatur | Hard |
| 05.08.21 | 2nd round | Yunseong Chung | Jumpei Yamasaki | 6-2, 6-2 | | match details | ||
| 04.08.21 | 1st round | Yunseong Chung | Nathan Ponwith | 6-2, 6-1 | | match details | ||
| 28.07.21 | 1st round | Ben Shelton | Yunseong Chung | 7-5, 6-0 | | match details | M25 Champaign | Hard |
| 19.07.21 | 1st round | Hugo Grenier | Yunseong Chung | 6-75, 6-3, 6-1 | | match details |  Nur Sultan | Hard |
| 15.07.21 | 2nd round | Roman Safiullin | Yunseong Chung | 6-3, 6-4 | | match details | Nur Sultan | Hard |
| 13.07.21 | 1st round | Yunseong Chung | Yan Bondarevskiy | 6-3, 6-4 | | match details | ||
| 28.05.21 | 1/4 | Thomas Fancutt | Yunseong Chung | 6-2, 3-0, Yunseong Chung - retired | | match details | M15 Monastir | Hard |
| 27.05.21 | 2nd round | Yunseong Chung | Yuta Kikuchi | 6-2, 3-6, 6-1 | | match details | ||
| 26.05.21 | 1st round | Yunseong Chung | Louis Tessa | 6-1, 6-0 | | match details | ||
| 23.05.21 | fin | Yunseong Chung | Jeremy Beale | 6-4, 6-2 | | match details | M15 Monastir | Hard |
| 22.05.21 | 1/2 | Yunseong Chung | Thomas Fancutt | 7-5, 6-4 | | match details | ||
| 21.05.21 | 1/4 | Yunseong Chung | Gustavo Heide | 6-3, 6-3 | | match details | ||
| 20.05.21 | 2nd round | Yunseong Chung | Lukas Neumayer | 6-1, 6-4 | | match details | ||
| 18.05.21 | 1st round | Yunseong Chung | Dorian Kos | 6-2, 6-1 | | match details | ||
| 16.05.21 | fin | Yunseong Chung | Aziz Dougaz | 6-1, 7-5 | | match details | M15 Monastir | Hard |
| 15.05.21 | 1/2 | Yunseong Chung | Omni Kumar | 6-2, 7-5 | | match details | ||
| 14.05.21 | 1/4 | Yunseong Chung | Santiago Rodriguez Taverna | 6-2, 6-2 | | match details | ||
| 13.05.21 | 2nd round | Yunseong Chung | Erik Crepaldi | 6-4, 7-5 | | match details | ||
| 11.05.21 | 1st round | Yunseong Chung | Mariano Kestelboim | 6-74, 6-1, 6-2 | | match details | ||
| 04.05.21 | 1st round | Brandon Holt | Yunseong Chung | 6-3, 6-3 | | match details | M15 Monastir | Hard |
| 01.05.21 | 1/2 | Benjamin Pietri | Yunseong Chung | 6-2, 3-6, 6-4 | | match details | M15 Monastir | Hard |
| 30.04.21 | 1/4 | Yunseong Chung | Gilbert Klier Junior | 6-2, 3-6, 6-1 | | match details | ||
| 29.04.21 | 2nd round | Yunseong Chung | Fabio Coelho | 6-1, 3-6, 7-61 | | match details | ||
| 27.04.21 | 1st round | Yunseong Chung | Omar Giacalone | 6-3, 6-75, 6-2 | | match details | ||
| 23.04.21 | 1/4 | Christoph Negritu | Yunseong Chung | 7-65, 5-7, 4-0, Yunseong Chung - retired | | match details | M15 Monastir | Hard |
| 22.04.21 | 2nd round | Yunseong Chung | Eliakim Coulibaly | 7-5, 6-3 | | match details | ||
| 21.04.21 | 1st round | Yunseong Chung | Giorgio Ricca | 6-3, 6-3 | | match details | ||
| 06.02.20 | 2nd round | Matija Pecotic | Yunseong Chung | 6-0, 6-3 | | match details | M25 Nonthaburi | Hard |
| 05.02.20 | 1st round | Yunseong Chung | Calvin Hemery | 6-6, Calvin Hemery - retired | | match details | ||
| 12.01.20 | 1st round | Jack Draper | Yunseong Chung | 7-65, 6-3 | | match details | Bangkok Challenger | Hard |
| 07.12.19 | 1/2 | Tatsuma Ito | Yunseong Chung | 1-6, 6-4, 6-4 | | match details |  Australian Open | Hard |
| 06.12.19 | 1/4 | Yunseong Chung | Mukund Sasikumar | 6-4, 6-3 | | match details | ||
| 04.12.19 | 1st round | Yunseong Chung | Denis Istomin | 7-5, 6-3 | | match details | ||
| 29.10.19 | 1st round | Jonas Forejtek | Yunseong Chung | 6-4, 6-3 | | match details | Shenzhen Challenger | Hard |
| 23.10.19 | 2nd round | Alejandro Davidovich Fokina | Yunseong Chung | 7-5, 7-5 | | match details | Liuzhou Challenger | Hard |
| 21.10.19 | 1st round | Yunseong Chung | Takuto Niki | 6-2, 7-62 | | match details | ||
| 16.10.19 | 2nd round | Danilo Petrovic | Yunseong Chung | 6-3, 6-3 | | match details | Ningboo Challenger | Hard |
| 15.10.19 | 1st round | Yunseong Chung | Aoran Wang | 1-6, 6-2, 6-1 | | match details | ||
| 02.09.19 | 1st round | Kaichi Uchida | Yunseong Chung | 6-2, 6-4 | | match details | Jinan Challenger | Hard |
| 20.08.19 | q 1 | Salvatore Caruso | Yunseong Chung | 6-0, 6-2 | | match details | New York | Hard |
| 08.08.19 | 3rd round | Saketh-Sai Myneni | Yunseong Chung | 6-3, 3-6, 6-3 | | match details | Yokkaichi Challenger | Hard |
| 06.08.19 | 2nd round | Yunseong Chung | Alafia Ayeni | 7-61, 6-3 | | match details | ||
| 31.07.19 | 2nd round | Dayne Kelly | Yunseong Chung | 6-3, 4-6, 6-2 | | match details | Chengdu Challenger | Hard |
| 19.07.19 | 1/4 | Aleksandar Vukic | Yunseong Chung | 6-3, 6-2 | | match details | Nur Sultan | Hard |
| 18.07.19 | 3rd round | Yunseong Chung | Goncalo Oliveira | 6-73, 7-5, 6-4 | | match details | ||
| 17.07.19 | 2nd round | Yunseong Chung | Edan Leshem | 6-4, 4-6, 6-4 | | match details | ||
| 16.05.19 | 3rd round | Evgeny Donskoy | Yunseong Chung | 7-5, 6-4 | | match details | Gwangju Challenger | Hard |
| 15.05.19 | 2nd round | Yunseong Chung | Duckhee Lee | 6-4, 6-2 | | match details | ||
| 14.05.19 | 1st round | Yunseong Chung | Jea Moon Lee | 7-65, 6-2 | | match details | ||
| 10.05.19 | 1/4 | Ricardas Berankis | Yunseong Chung | 5-7, 6-3, 6-4 | | match details | Busan Challenger | Hard |
| 09.05.19 | 3rd round | Yunseong Chung | Marcos Baghdatis | 6-2, 6-3 | | match details | ||
| 07.05.19 | 2nd round | Yunseong Chung | Nikola Milojevic | 6-2, 3-6, 7-5 | | match details | ||
| 06.05.19 | 1st round | Yunseong Chung | Zhe Li | 3-6, 6-3, 6-4 | | match details | ||
| 02.05.19 | 3rd round | Yasutaka Uchiyama | Yunseong Chung | 6-4, 6-4 | | match details | Seoul Challenger | Hard |
| 01.05.19 | 2nd round | Yunseong Chung | Yuichi Sugita | 6-2, 6-3 | | match details | ||
| 29.04.19 | 1st round | Yunseong Chung | Stephane Robert | 1-6, 6-2, 6-4 | | match details | ||
| 21.03.19 | 3rd round | Viktor Galovic | Yunseong Chung | 6-3, 6-2 | | match details | Zhangjiagang Challenger | Hard |
| 20.03.19 | 2nd round | Yunseong Chung | Yuichi Sugita | 4-6, 7-5, 6-2 | | match details | ||
| 19.03.19 | 1st round | Yunseong Chung | Fajing Sun | 6-4, 6-4 | | match details | ||
| 14.03.19 | 3rd round | Stefano Napolitano | Yunseong Chung | 5-7, 6-2, 7-64 | | match details | Shenzhen Challenger | Hard |
| 12.03.19 | 2nd round | Yunseong Chung | Rudolf Molleker | 6-4, 6-1 | | match details | ||
| 11.03.19 | 1st round | Yunseong Chung | Mohamed Safwat | 6-3, 6-1 | | match details | ||
| 07.03.19 | 3rd round | Marcos Baghdatis | Yunseong Chung | 6-4, 6-2 | | match details | Zhuhai Challenger | Hard |
| 06.03.19 | 2nd round | Yunseong Chung | Viktor Galovic | 6-3, 6-4 | | match details | ||
| 05.03.19 | 1st round | Yunseong Chung | Harri Heliovaara | 7-5, 6-2 | | match details | ||
| 24.02.19 | 1st round | Tsung-Hua Yang | Yunseong Chung | 6-4, 6-3 | | match details | Yokohama Challenger | Hard |
| 19.02.19 | 2nd round | Gianluca Mager | Yunseong Chung | 6-4, 6-4 | | match details | Bangkok Challenger | Hard |
| 18.02.19 | 1st round | Yunseong Chung | Pedro Cachin | 6-2, 6-1 | | match details | ||
| 30.01.19 | 2nd round | Lorenzo Giustino | Yunseong Chung | 6-3, 6-71, 6-3 | | match details |  Launceston Challenger | Hard |
| 28.01.19 | 1st round | Yunseong Chung | Jose Statham | 6-4, 6-3 | | match details | ||
| 22.01.19 | 2nd round | Lorenzo Giustino | Yunseong Chung | 6-2, 6-3 | | match details | Burnie Challenger | Hard |
| 21.01.19 | 1st round | Yunseong Chung | Jordi Samper-Montana | 7-5, 6-1 | | match details | ||
| 07.01.19 | 2nd round | Brydan Klein | Yunseong Chung | 7-62, 6-75, 6-0 | | match details | Canberra Challenger | Hard |
| 01.01.19 | 2nd round | Jurij Rodionov | Yunseong Chung | 6-4, 6-1 | | match details |  Noumea Challenger | Hard |
| 31.12.18 | 1st round | Yunseong Chung | Tomislav Brkic | 6-3, 6-2 | | match details | ||
| 30.11.18 | 1/4 | Zhe Li | Yunseong Chung | 6-4, 6-4 | | match details | Australian Open | Hard |
| 29.11.18 | 1st round | Yunseong Chung | Rigele Te | 7-61, 6-1 | | match details | ||
| 23.10.18 | 1st round | Miomir Kecmanovic | Yunseong Chung | 6-1, 1-0, Yunseong Chung - retired | | match details | Liuzhou Challenger | Hard |
| 22.10.18 | qual. | Yunseong Chung | Emil Ruusuvuori | 6-3, 6-3 | | match details | ||
| 21.10.18 | q 2 | Yunseong Chung | Youssef Hossam | 7-5, 6-3 | | match details | ||
| 20.10.18 | q 1 | Yunseong Chung | Sidharth Rawat | 5-7, 6-2, 6-3 | | match details | ||
| 19.10.18 | 1/4 | Prajnesh Gunneswaran | Yunseong Chung | 6-2, 6-1 | | match details | Ningboo Challenger | Hard |
| 17.10.18 | 2nd round | Yunseong Chung | Yosuke Watanuki | 2-6, 7-65, 6-3 | | match details | ||
| 15.10.18 | 1st round | Yunseong Chung | Ramkumar Ramanathan | 1-6, 7-67, 7-62 | | match details | ||
| 07.10.18 | q 2 | Artem Dubrivnyy | Yunseong Chung | 6-3, 7-5 | | match details |  Tashkent Challenger | Hard |
| 06.10.18 | q 1 | Yunseong Chung | Grigoriy Korobeynikov | 6-0, 6-0 | | match details | ||
| 11.09.18 | 1st round | Aldin Setkic | Yunseong Chung | 6-3, 6-4 | | match details | Shanghai Challenger | Hard |
| 07.09.18 | 1/4 | Alexander Bublik | Yunseong Chung | 6-4, 6-4 | | match details | Zhangjiagang Challenger | Hard |
| 06.09.18 | 2nd round | Yunseong Chung | Go Soeda | 7-5, 3-6, 6-2 | | match details | ||
| 05.09.18 | 1st round | Yunseong Chung | Roman Safiullin | 3-6, 6-4, 6-3 | | match details | ||
| 14.08.18 | 1st round | Benjamin Lock | Yunseong Chung | 6-4, 4-6, 6-3 | | match details | Gwangju Challenger | Hard |
| 04.08.18 | 1/2 | Stefano Napolitano | Yunseong Chung | 7-5, 6-3 | | match details | Lexington Challenger | Hard |
| 03.08.18 | 1/4 | Yunseong Chung | Jay Clarke | 6-3, 3-0, Jay Clarke - retired | | match details | ||
| 02.08.18 | 2nd round | Yunseong Chung | Jeff Wolf | 6-3, 6-79, 7-5 | | match details | ||
| 31.07.18 | 1st round | Yunseong Chung | William Bushamuka | 6-2, 6-3 | | match details | ||
| 25.07.18 | 1st round | Jay Clarke | Yunseong Chung | 6-1, 7-64 | | match details | Binghamton Challenger | Hard |
| 18.07.18 | 2nd round | Bradley Klahn | Yunseong Chung | 7-5, 6-4 | | match details |  Gatineau Challenger | Hard |
| 17.07.18 | 1st round | Yunseong Chung | Mitchell Krueger | 7-63, 6-4 | | match details | ||
| 16.07.18 | qual. | Yunseong Chung | Justin Boulais | 6-2, 6-1 | | match details | ||
| 15.07.18 | q 2 | Yunseong Chung | Alejandro Gomez | 6-3, 7-65 | | match details | ||
| 14.07.18 | q 1 | Yunseong Chung | Tyler Lu | 3-6, 6-3, 6-4 | | match details | ||
| 12.07.18 | 2nd round | Go Soeda | Yunseong Chung | 6-2, 2-6, 6-4 | | match details | Winnipeg Challenger | Hard |
| 10.07.18 | 1st round | Yunseong Chung | David Volfson | 6-3, 6-3 | | match details | ||
| 09.07.18 | qual. | Yunseong Chung | Jack Mingjie Lin | 6-2, 6-2 | | match details | ||
| 08.07.18 | q 2 | Yunseong Chung | Yshai Oliel | 6-3, 6-1 | | match details | ||
| 24.06.18 | fin | Yunseong Chung | Ji Sung Nam | 6-1, 6-3 | | match details | Korea F3 | Hard |
| 22.06.18 | 1/2 | Yunseong Chung | Soon-Woo Kwon | 6-4, 6-4 | | match details | ||
| 21.06.18 | 1/4 | Yunseong Chung | Oh-Hee Kwon | 6-4, 6-1 | | match details | ||
| 19.06.18 | 1st round | Yunseong Chung | Ju-Hae Moon | 6-3, 4-6, 7-5 | | match details | ||
| 19.06.18 | 2nd round | Yunseong Chung | Min-Kyu Song | 7-66, 7-64 | | match details | ||
| 17.06.18 | fin | Yunseong Chung | Ji Sung Nam | 6-4, 6-3 | | match details | Korea F2 | Hard |
| 16.06.18 | 1/2 | Yunseong Chung | Jae Hwan Kim | 6-4, 5-7, 6-2 | | match details | ||
| 15.06.18 | 1/4 | Yunseong Chung | Chan-Yeong Oh | 7-63, 3-6, 6-4 | | match details | ||
| 14.06.18 | 2nd round | Yunseong Chung | Soichiro Moritani | 7-612, 6-0 | | match details | ||
| 12.06.18 | 1st round | Yunseong Chung | Clement Larriere | 6-3, 6-4 | | match details | ||
| 02.06.18 | 1/4 | Xin Gao | Yunseong Chung | 6-0, 6-77, 6-3 | | match details | China F7 | Hard |
| 31.05.18 | 2nd round | Yunseong Chung | Chien-Hsun Lo | 6-2, 5-7, 7-5 | | match details | ||
| 29.05.18 | 1st round | Yunseong Chung | Zhenxiong Dong | 6-2, 6-1 | | match details | ||
| 15.05.18 | 1st round | Matthew Ebden | Yunseong Chung | 6-3, 3-6, 6-3 | | match details | Busan Challenger | Hard |
| 14.05.18 | qual. | Yunseong Chung | Luke Saville | 6-76, 7-62, 6-0 | | match details | ||
| 13.05.18 | q 2 | Yunseong Chung | Jason Murray Kubler | 6-3, 6-2 | | match details | ||
| 12.05.18 | q 1 | Yunseong Chung | Ben Patael | 6-3, 6-2 | | match details | ||
| 08.05.18 | 1st round | Jordan Thompson | Yunseong Chung | 6-4, 6-1 | | match details | Gimcheon Challenger | Hard |
| 01.05.18 | 1st round | Lloyd Harris | Yunseong Chung | 5-7, 6-3, 6-0 | | match details | Seoul Challenger | Hard |
| 20.03.18 | 1st round | Malek Jaziri | Yunseong Chung | 6-2, 6-4 | | match details | Qujing Challenger | Hard |
| 18.03.18 | qual. | Yunseong Chung | Mikhail Elgin | 6-3, 6-74, 6-3 | | match details | ||
| 17.03.18 | q 1 | Yunseong Chung | Toshihide Matsui | 6-3, 2-0, Toshihide Matsui - retired | | match details | ||
| 11.03.18 | q 2 | Gianluigi Quinzi | Yunseong Chung | 7-69, 3-6, 7-5 | | match details | Shenzhen Challenger | Hard |
| 11.03.18 | q 1 | Yunseong Chung | Chuhan Wang | 6-1, 2-1, Chuhan Wang - retired | | match details | ||
| 04.03.18 | q 2 | Alex Bolt | Yunseong Chung | 6-4, 6-2 | | match details | Zhuhai Challenger | Hard |
| 03.03.18 | q 1 | Yunseong Chung | Andrea Vavassori | 6-3, 4-6, 6-3 | | match details | ||
| 26.02.18 | 1st round | Jason Jung | Yunseong Chung | 6-2, 6-76, 6-4 | | match details | Yokohama Challenger | Hard |
| 25.02.18 | qual. | Yunseong Chung | Makoto Ochi | 6-3, 1-6, 6-1 | | match details | ||
| 24.02.18 | q 2 | Yunseong Chung | Takuto Niki | 6-76, 6-3, 6-3 | | match details | ||
| 23.02.18 | q 1 | Yunseong Chung | Masato Shiga | 6-0, 7-5 | | match details | ||
| 05.12.17 | 1st round | Wishaya Trongcharoenchaikul | Yunseong Chung | 3-6, 7-5, 7-65 | | match details | Thailand F11 | Hard |
| 29.11.17 | 2nd round | Martins Podzus | Yunseong Chung | 6-2, 6-3 | | match details | Thailand F10 | Hard |
| 28.11.17 | 1st round | Yunseong Chung | Pruchya Isarow | 5-7, 7-5, 6-2 | | match details | ||
| 19.11.17 | q 2 | Pol Wattanakul | Yunseong Chung | 7-5, 6-4 | | match details | Hua Hin | Hard |
| 18.11.17 | q 1 | Yunseong Chung | Kittirat Kerdlaphee | 6-1, 6-2 | | match details | ||
| 28.10.17 | q 2 | Tsung-Hua Yang | Yunseong Chung | 6-3, 6-2 | | match details | Shenzhen Challenger | Hard |
| 19.10.17 | 2nd round | Jurij Rodionov | Yunseong Chung | Yunseong Chung - walk over | | match details | Ningboo Challenger | Hard |
| 17.10.17 | 1st round | Yunseong Chung | Nicolas Jarry | 7-65, 6-3 | | match details | ||
| 16.10.17 | qual. | Yunseong Chung | Vishnu Vardhan | 7-62, 6-2 | | match details | ||
| 15.10.17 | q 2 | Yunseong Chung | Shuichi Sekiguchi | 6-4, 6-3 | | match details | ||
| 14.10.17 | q 1 | Yunseong Chung | Ruikai Wang | 6-2, 6-2 | | match details | ||
| 11.10.17 | 2nd round | Yunseong Chung | Tung-Lin Wu | 7-5, 6-2 | | match details | Thailand F8 | Hard |
| 11.10.17 | 1/4 | Sam Barry | Yunseong Chung | 6-2, 6-4 | | match details | ||
| 10.10.17 | 1st round | Yunseong Chung | Jirat Navasirisomboon | 6-1, 6-2 | | match details | ||
| 17.09.17 | q 2 | Tsung-Hua Yang | Yunseong Chung | 7-63, 7-5 | | match details | Gwangju Challenger | Hard |
| 16.09.17 | q 1 | Yunseong Chung | Seong Taek Im | 6-1, 7-61 | | match details | ||
| 10.09.17 | q 2 | Tsung-Hua Yang | Yunseong Chung | 3-6, 6-3, 5-4, Yunseong Chung - retired | | match details | Shanghai Challenger | Hard |
| 09.09.17 | q 1 | Yunseong Chung | Zhicheng Zhu | 6-3, 6-1 | | match details | ||
| 03.08.17 | 2nd round | Nikola Milojevic | Yunseong Chung | 7-64, 6-4 | | match details | Chengdu Challenger | Hard |
| 01.08.17 | 1st round | Yunseong Chung | Shuichi Sekiguchi | 4-6, 6-3, 7-5 | | match details | ||
| 30.07.17 | qual. | Yunseong Chung | Vishnu Vardhan | 6-4, 6-3 | | match details | ||
| 29.07.17 | q 2 | Yunseong Chung | Sergey Betov | 6-2, 7-60 | | match details | ||
| 25.07.17 | 1st round | Jie Cui | Yunseong Chung | 6-3, 7-5 | | match details | China F14 | Hard |
| 19.07.17 | 2nd round | Jui-Chen Hung | Yunseong Chung | 1-6, 6-3, 6-4 | | match details | China F13 | Hard |
| 18.07.17 | 1st round | Yunseong Chung | He Feng | 6-4, 6-4 | | match details | ||
| 23.06.17 | 1/4 | Cheong-Eui Kim | Yunseong Chung | 7-5, 7-611 | | match details | Korea F4 | Hard |
| 22.06.17 | 2nd round | Yunseong Chung | Seong-Gook Oh | 6-2, 6-2 | | match details | ||
| 20.06.17 | 1st round | Yunseong Chung | Dong-Kyu Lee | 6-3, 6-2 | | match details | ||
| 15.06.17 | 2nd round | Daniel Yoo | Yunseong Chung | 7-5, 6-4 | | match details | Korea F3 | Hard |
| 14.06.17 | 1st round | Yunseong Chung | Ji Hoon Son | 7-64, 6-4 | | match details | ||
| 08.06.17 | 2nd round | Ji Hoon Son | Yunseong Chung | 7-65, 0-6, 7-65 | | match details | Korea F2 | Hard |
| 07.06.17 | 1st round | Yunseong Chung | Tae-Woo Lee | 6-2, 6-75, 6-1 | | match details | ||
| 30.05.17 | 1st round | Dylan Seong-Kwan Kim | Yunseong Chung | 5-7, 6-3, 6-4 | | match details | Korea F1 | Hard |
| 13.05.17 | q 1 | Seong-Gook Oh | Yunseong Chung | 4-6, 7-64, 6-3 | | match details | Busan Challenger | Hard |
| 10.05.17 | 2nd round | Hiroki Moriya | Yunseong Chung | 4-6, 7-64, 6-3 | | match details | Seoul Challenger | Hard |
| 08.05.17 | 1st round | Yunseong Chung | Yen-Hsun Lu | 6-3, 6-4 | | match details | ||
| 01.05.17 | 1st round | Brydan Klein | Yunseong Chung | 6-3, 6-4 | | match details | Gimcheon Challenger | Hard |
| 07.03.17 | 1st round | Liang-Chi Huang | Yunseong Chung | 6-3, 7-65 | | match details | Japan F1 | Hard |
| 24.02.17 | q 1 | Soon-Woo Kwon | Yunseong Chung | 7-69, 7-5 | | match details | Yokohama Challenger | Hard |
| 30.12.16 | 1/2 | Dmitry Popko | Yunseong Chung | 6-4, 4-6, 6-1 | | match details | Thailand F6 | Hard |
| 29.12.16 | 1/4 | Yunseong Chung | Fajing Sun | 4-6, 7-5, 6-2 | | match details | ||
| 28.12.16 | 2nd round | Yunseong Chung | Yan Sabanin | 7-64, 6-1 | | match details | ||
| 27.12.16 | 1st round | Yunseong Chung | Jirat Navasirisomboon | 7-61, 6-4 | | match details | ||
| 19.12.16 | 1st round | Young Seok Kim | Yunseong Chung | 3-6, 6-4, 7-66 | | match details | Thailand F5 | Hard |
| 07.12.16 | 1st round | Cheong-Eui Kim | Yunseong Chung | 6-2, 5-7, 7-5 | | match details | Indonesia F5 | Hard |
| 30.11.16 | 1st round | Cing-Yang Meng | Yunseong Chung | 7-66, 6-4 | | match details | Indonesia F4 | Hard |
| 27.10.16 | 2nd round | Yu Hsiou Hsu | Yunseong Chung | 6-3, 7-63 | | match details | .png){kind=small} Chinese Taipei | Hard |
| 26.10.16 | 1st round | Yunseong Chung | Ting-Hou He | 6-2, 6-4 | | match details | ||
| 21.10.16 | 1/4 | Kuan-Yi Lee | Yunseong Chung | 6-0, 6-2 | | match details | Chinese Taipei | Hard |
| 20.10.16 | 2nd round | Yunseong Chung | Ching-Mou Yu | 7-63, 6-3 | | match details | ||
| 18.10.16 | 1st round | Yunseong Chung | Ching-Huang Tsai | 6-4, 6-2 | | match details | ||
| 10.10.16 | qual. | Shuichi Sekiguchi | Yunseong Chung | 6-4, 4-6, 6-4 | | match details |  Ho Chi | Hard |
| 09.10.16 | q 2 | Yunseong Chung | Nikola Cacic | 7-62, 7-65 | | match details | ||
| 08.10.16 | q 1 | Yunseong Chung | Dac Tien Nguyen | 6-0, 6-3 | | match details | ||
| 13.09.16 | 1st round | Yuichi Ito | Yunseong Chung | 6-4, 5-7, 6-4 | | match details | Vietnam F4 | Hard |
| 07.09.16 | 1/4 | Renta Tokuda | Yunseong Chung | 6-3, 7-63 | | match details | Thailand F3 | Hard |
| 06.09.16 | 2nd round | Yunseong Chung | Jirat Navasirisomboon | 6-0, 6-4 | | match details | ||
| 04.09.16 | 1st round | Yunseong Chung | Pol Wattanakul | 6-3, 2-6, 6-3 | | match details | ||
| 31.08.16 | 2nd round | Kuan-Yi Lee | Yunseong Chung | 6-3, 6-3 | | match details | Thailand F2 | Hard |
| 28.08.16 | 1st round | Yunseong Chung | Pol Wattanakul | 6-3, 6-4 | | match details | ||
| 26.08.16 | 1/2 | Fajing Sun | Yunseong Chung | 6-4, 6-3 | | match details | Thailand F1 | Hard |
| 24.08.16 | 2nd round | Yunseong Chung | Kuan-Yi Lee | 6-3, 7-5 | | match details | ||
| 24.08.16 | 1/4 | Yunseong Chung | Antoine Escoffier | 6-4, 6-3 | | match details | ||
| 23.08.16 | 1st round | Yunseong Chung | Cody Brackenreg | 6-2, 6-1 | | match details | ||
| 09.08.16 | 1st round | Nam Hoang Ly | Yunseong Chung | 6-3, 7-5 | | match details | Vietnam F3 | Hard |
| 03.08.16 | 1st round | Yusuke Takahashi | Yunseong Chung | 6-2, 4-6, 6-1 | | match details | Vietnam F2 | Hard |
| 24.06.16 | 1/4 | Seong Chan Hong | Yunseong Chung | 7-62, 6-71, 6-4 | | match details | Korea F2 | Hard |
| 22.06.16 | 2nd round | Yunseong Chung | Hyun-Joon Kim | 6-3, 6-1 | | match details | ||
| 20.06.16 | 1st round | Yunseong Chung | Young-Hoon Jeong | 6-3, 6-4 | | match details | ||
| 16.06.16 | 2nd round | Jae-Min Seol | Yunseong Chung | 6-4, 4-6, 6-4 | | match details | Korea F1 | Hard |
| 15.06.16 | 1st round | Yunseong Chung | Jea Moon Lee | 6-1, 6-3 | | match details | ||
| 21.05.16 | fin | Akira Santillan | Yunseong Chung | 6-1, 6-4 | | match details | China F7 | Hard |
| 21.05.16 | 1/2 | Yunseong Chung | Soon-Woo Kwon | 6-4, 6-2 | | match details | ||
| 20.05.16 | 1/4 | Yunseong Chung | Finn Tearney | 0-6, 6-4, 7-5 | | match details | ||
| 19.05.16 | 2nd round | Yunseong Chung | Zhao Cai | 6-3, 6-2 | | match details | ||
| 18.05.16 | 1st round | Yunseong Chung | Bowen Ouyang | 4-6, 6-2, 6-1 | | match details | ||
| 07.05.16 | q 1 | James Marsalek | Yunseong Chung | 3-6, 6-4, 6-4 | | match details | Seoul Challenger | Hard |
| 01.05.16 | q 2 | Alexander Ward | Yunseong Chung | 3-6, 6-4, 7-5 | | match details | Busan Challenger | Hard |
| 30.04.16 | q 1 | Yunseong Chung | Ji Ha Kim | 6-1, 6-4 | | match details | ||
| 11.04.16 | 1st round | Yong-Kyu Lim | Yunseong Chung | 6-4, 6-2 | | match details | Gwangju Challenger | Hard |
| 30.03.16 | 1st round | Finn Tearney | Yunseong Chung | 3-6, 6-4, 6-1 | | match details | Japan F4 | Hard |
| 23.03.16 | 2nd round | Xin Gao | Yunseong Chung | 6-4, 6-0 | | match details | Japan F3 | Hard |
| 22.03.16 | 1st round | Yunseong Chung | Bowen Ouyang | 6-3, 6-4 | | match details | ||
| 18.03.16 | 1/2 | Yuuya Kibi | Yunseong Chung | 1-6, 6-1, 6-4 | | match details | Japan F2 | Hard |
| 17.03.16 | 1/4 | Yunseong Chung | Gengo Kikuchi | 2-6, 6-4, 6-1 | | match details | ||
| 15.03.16 | 2nd round | Yunseong Chung | Hiroki Kondo | 6-1, 7-5 | | match details | ||
| 15.03.16 | 1st round | Yunseong Chung | Takuto Niki | 6-3, 3-6, 6-3 | | match details | ||
| 14.03.16 | q 1 | Yunseong Chung | Yuhei Kono | 6-3, 6-2 | | match details | ||
| 14.03.16 | qual. | Yunseong Chung | Tung-Lin Wu | 7-64, 6-2 | | match details | ||
| 19.02.16 | 1/4 | Tallon Griekspoor | Yunseong Chung | 3-6, 7-5, 6-1 | | match details |  Turkey F7 | Hard |
| 18.02.16 | 2nd round | Yunseong Chung | Pedja Krstin | 6-3, 3-6, 6-3 | | match details | ||
| 17.02.16 | 1st round | Yunseong Chung | Muhammet Haylaz | 6-4, 6-4 | | match details | ||
| 15.02.16 | qual. | Yunseong Chung | Pavel Krainik | 7-5, 6-3 | | match details | ||
| 15.02.16 | q 2 | Yunseong Chung | Can Oztuzun | 6-2, 6-2 | | match details | ||
| 09.02.16 | 1st round | Lenny Hampel | Yunseong Chung | 6-4, 6-1 | | match details | Turkey F6 | Hard |
| 29.01.16 | 1/2 | Oliver Anderson | Yunseong Chung | 6-3, 7-5 | | match details | Australian Open | Hard |
| 28.01.16 | 1/4 | Yunseong Chung | Kenneth Raisma | 6-3, 6-4 | | match details | ||
| 27.01.16 | 3rd round | Yunseong Chung | Tung-Lin Wu | 6-3, 1-0, Tung-Lin Wu - retired | | match details | ||
| 26.01.16 | 2nd round | Yunseong Chung | Patrik Rikl | 5-7, 6-4, 9-7 | | match details | ||
| 24.01.16 | 1st round | Yunseong Chung | Alexei Popyrin | 6-3, 6-2 | | match details | ||
| 14.11.15 | q 1 | Yusuke Watanuki | Yunseong Chung | 6-4, 6-2 | | match details | Yokohama Challenger | Hard |
| 12.09.15 | 1/2 | Taylor Harry Fritz | Yunseong Chung | 6-2, 6-3 | | match details | U.S. Open | Hard |
| 11.09.15 | 1/4 | Yunseong Chung | Mikael Ymer | 2-6, 7-62, 6-3 | | match details | ||
| 09.09.15 | 3rd round | Yunseong Chung | Reilly Opelka | 6-4, 7-62 | | match details | ||
| 08.09.15 | 2nd round | Yunseong Chung | Patrik Rikl | 7-5, 6-4 | | match details | ||
| 07.09.15 | 1st round | Yunseong Chung | Gianni Ross | 6-4, 6-4 | | match details | ||
| 17.08.15 | 1st round | Yunseong Chung | A-Ram Kim | 6-2, 6-3 | | match details | Korea F4 | Hard |
| 17.08.15 | 2nd round | Yunseong Chung | Ji Hoon Son | 6-2, 6-3 | | match details | ||
| 17.08.15 | 1/4 | Yunseong Chung | Jae Hwan Kim | 4-6, 6-4, 6-2 | | match details | ||
| 17.08.15 | 1/2 | Jung-Woong Na | Yunseong Chung | 7-5, 6-3 | | match details | ||
| 10.08.15 | 2nd round | Yunseong Chung | Sang-Yuop Kim | 6-4, 7-5 | | match details | Korea F3 | Hard |
| 10.08.15 | fin | Jung-Woong Na | Yunseong Chung | 6-3, 6-1 | | match details | ||
| 10.08.15 | 1/4 | Yunseong Chung | Young-Hoon Jeong | 7-65, Young-Hoon Jeong - retired | | match details | ||
| 10.08.15 | 1/2 | Yunseong Chung | Makoto Ochi | 6-3, 6-1 | | match details | ||
| 10.08.15 | 1st round | Yunseong Chung | Hiromasa Oku | 7-5, 6-2 | | match details | ||
| 03.08.15 | 1st round | Georgi Rumenov Payakov | Yunseong Chung | 4-6, 6-1, 6-3 | | match details |  Segovia Challenger | Hard |
| 28.07.15 | 1st round | Mikhail Kukushkin | Yunseong Chung | 7-5, 6-4 | | match details | Astana Challenger | Hard |
| 03.05.15 | q 2 | Marcos Giron | Yunseong Chung | 6-4, 6-3 | | match details | Busan Challenger | Hard |
| 02.05.15 | q 1 | Yunseong Chung | Zhe Li | 3-6, 6-2, 6-1 | | match details | ||
| 16.03.15 | 1st round | Kento Takeuchi | Yunseong Chung | 6-75, 6-4, 6-1 | | match details | Japan F2 | Hard |
| 09.03.15 | 1st round | Yunseong Chung | Takashi Saito | 7-5, 6-4 | | match details | Japan F1 | Hard |
| 09.03.15 | 2nd round | Gengo Kikuchi | Yunseong Chung | 1-6, 7-65, 7-5 | | match details | ||
| 26.01.15 | 2nd round | Alexander Bublik | Yunseong Chung | 7-62, 6-3 | | match details | Australian Open | Hard |
| 24.01.15 | 1st round | Yunseong Chung | Lloyd Harris | 6-3, 6-3 | | match details | ||
| 03.09.14 | 2nd round | Mikael Ymer | Yunseong Chung | 7-5, 6-2 | | match details | U.S. Open | Hard |
| 01.09.14 | 1st round | Yunseong Chung | Michael Mmoh | 4-6, 6-3, 7-6 | | match details | ||
| 14.07.14 | qual. | Yunseong Chung | Marc Dijkhuizen | 6-2, 6-1 | | match details |  Hong Kong | Hard |
| 14.07.14 | 1st round | Evan Song | Yunseong Chung | 7-66, 4-6, 6-1 | | match details | ||
| 14.07.14 | q 1 | Yunseong Chung | Marc Reyes | 6-3, 6-4 | | match details | ||
| 16.06.14 | 1/4 | Yunseong Chung | John Millman | John Millman - walk over | | match details | Korea F6 | Hard |
| 16.06.14 | 1/2 | Yunseong Chung | Jui-Chen Hung | 6-3, 6-4 | | match details | ||
| 16.06.14 | fin | Cheong-Eui Kim | Yunseong Chung | 6-2, 6-4 | | match details | ||
| 16.06.14 | 1st round | Yunseong Chung | Sang-Yuop Kim | 6-3, 6-3 | | match details | ||
| 16.06.14 | 2nd round | Yunseong Chung | Hyun-Woo Nam | 7-62, 6-2 | | match details | ||
| 11.05.14 | q 2 | Danai Udomchoke | Yunseong Chung | 6-2, 6-3 | | match details | Busan Challenger | Hard |
| 10.05.14 | q 1 | Yunseong Chung | Hyeon Sung Kim | 6-0, 6-1 | | match details | ||
| 21.04.14 | 1st round | Yunseong Chung | Min-Kyu Song | 6-3, 5-7, 7-5 | | match details | Korea F1 | Hard |
| 21.04.14 | 2nd round | Maximilian Neuchrist | Yunseong Chung | 6-4, 6-2 | | match details | ||
| 19.01.14 | 1st round | Marcelo Zormann | Yunseong Chung | 6-3, 6-3 | | match details | Australian Open | Hard |
| 20.05.13 | qual. | Min-Kyu Song | Yunseong Chung | 6-4, 6-2 | | match details | Korea F3 | Hard |
| 20.05.13 | q 2 | Yunseong Chung | Soon-Woo Kwon | 6-3, 2-6, 6-1 | | match details | ||
| 11.05.13 | q 1 | Seong Chan Hong | Yunseong Chung | 6-4, 6-4 | | match details | Busan Challenger | Hard |
| 06.05.13 | 1st round | Duckhee Lee | Yunseong Chung | 6-2, 6-0 | | match details | Korea F2 | Hard |
| 29.04.13 | q 2 | Yunseong Chung | Kaichi Uchida | 7-66, 4-6, 6-4 | | match details | Korea F1 | Hard |
| 29.04.13 | qual. | Yunseong Chung | Jea Moon Lee | 5-7, 6-4, 6-4 | | match details | ||
| 29.04.13 | 1st round | Hong Chung | Yunseong Chung | 6-3, 6-1 | | match details | ||
| 29.04.13 | q 1 | Yunseong Chung | Sol Bae | 6-2, 6-2 | | match details |