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

Chung Yun-seong
정윤성

Residence	Yongin, South Korea
Born	(1998-03-27) 27 March 1998 (age 24) Seoul, South Korea
Height	1.78 m (5 ft 10 in)
Turned pro	2017
Plays	Right-handed (two handed-backhand)
Prize money	$133,581
Singles
Career record	0–2
Career titles	0
Highest ranking	No. 233 (22 July 2019)
Current ranking	No. 269 (26 September 2022)
Grand Slam singles results
US Open	Q1 (2019)
Doubles
Career record	0–0
Career titles	0
Highest ranking	No. 283 (24 February 2020)
Current ranking	No. 377 (28 February 2022)
Last updated on: 10 September 2022.

Chung Yun-seong
Hangul	정윤성
Revised Romanization	Jeong Yunseong
McCune–Reischauer	Chŏng Yunsŏng

Chung has a career high ATP singles ranking of 262 achieved on 17 December 2018. He also has a career high ATP doubles ranking of 412 achieved on 27 February 2017. Chung has won five ITF 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.[1]

Junior Grand Slam finals

Doubles: 1 (1 runner-up)

Outcome	Year	Championship	Surface	Partner	Opponent	Score
Runner-up	2016	French Open	Clay	Orlando Luz	Yishai Oliel Patrik Rikl	3–6, 4–6

ATP Challenger and ITF Futures/World Tennis Tour finals

Singles: 8 (4–4)

Legend ATP Challenger (0–0) ITF Futures (4–4)

Finals by surface Hard (4–4) Clay (0–0) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Jun 2014	Korea F6, Gimcheon	Futures	Hard	Kim Cheong-Eui	2–6, 4–6
Loss	0–2	Aug 2015	Korea F3, Gimcheon	Futures	Hard	Jung-Woong Na	3–6, 1–6
Loss	0–3	May 2016	China F7, Wuhan	Futures	Hard	Akira Santillan	1–6, 4–6
Win	1–3	Jun 2018	Korea F2, Gyeongsan	Futures	Hard	Nam Ji-sung	6–4, 6–3
Win	2–3	Jun 2018	Korea F3, Daegu	Futures	Hard	Nam Ji-sung	6–1, 6–3
Win	3–3	May 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Aziz Dougaz	6–1, 7–5
Win	4–3	May 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Jeremy Beale	6–4, 6–2
Loss	4–4	Jan 2022	M25 Monastir, Tunisia	World Tennis Tour	Hard	Harold Mayot	4–6, 6–0, 4–6

Doubles: 19 (11 titles, 8 runners-up)

Legend ATP Challenger (2–3) ITF Futures (9–5)

Finals by surface Hard (10–7) Clay (1–1) Grass (0–0) Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Aug 2015	Astana, Kazakhstan	Challenger	Hard	Jurabek Karimov	Konstantin Kravchuk Denys Molchanov	2–6, 2–6
Win	1–1	Mar 2016	Japan F2, Tokyo	Futures	Hard	Soonwoo Kwon	Issei Okamura Kento Takeuchi	2–6, 6–2, [10–3]
Loss	1–2	Jun 2016	Korea F2, Sangju	Futures	Hard	Lim Yong-kyu	Nam Ji-sung Song Min-kyu	4–6, 4–6
Loss	1–3	Aug 2016	Thailand F1, Hua Hin	Futures	Hard	Xin Gao	Chen Ti John-Paul Fruttero	2–6, 2–6
Win	2–3	Oct 2016	Chinese Taipei F2, Kaohsiung	Futures	Hard	Patrik Niklas-Salminen	Yu Hsiang Chiu Shao-Fan Liu	7–5, 6–4
Win	3–3	Dec 2016	Indonesia F4, Jakarta	Futures	Hard	Shintaro Imai	Julien Cagnina Enzo Couacaud	6–2, 6–4
Win	4–3	Dec 2016	Indonesia F5, Jakarta	Futures	Hard	Shintaro Imai	Issei Okamura Kento Takeuchi	6–2, 3–6, [10–6]
Win	5–3	Feb 2018	Spain F3, Mallorca	Futures	Clay	Rio Noguchi	Bruno Sant'Anna David Vega Hernandez	2–6, 7–6(8–6), [10–8]
Win	6–3	Jun 2018	Korea F3, Daegu	Futures	Hard	Seong Chan Hong	Soonwoo Kwon Lim Yong-kyu	walkover
Loss	6–4	Jul 2019	Astana, Kazakhstan	Challenger	Hard	Nam Ji-sung	Andrey Golubev Aleksandr Nedovyesov	4–6, 4–6
Loss	6–5	Feb 2020	M25 Nonthaburi, Thailand	World Tennis Tour	Hard	Corentin Denolly	Sonchat Ratiwatana Sanchai Ratiwatana	6–3, 4–6, [5–10]
Win	7–5	Feb 2020	M25 Aktobe, Kazakhstan	World Tennis Tour	Hard	Aldin Setkic	Riccardo Balzerani Francesco Forti	6–3, 6–4
Loss	7–6	Feb 2021	M15 Antalya, Turkey	World Tennis Tour	Clay	Oleksandr Ovcharenko	Max Houkes Sidane Pontjodikromo	5–7, 1–6
Win	8–6	May 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Shintaro Imai	Filip Bergevi Jonathan Mridha	6–2, 7–6(7–4)
Win	9–6	May 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Shintaro Imai	Aziz Dougaz Benjamin Lock	6–3, 6–2
Loss	9–7	Jul 2021	M25 Champaign, United States	World Tennis Tour	Hard	Rio Noguchi	Ben Shelton Eliot Spizzirri	4–6, 0–6
Win	10–7	Jun 2022	Orlando, USA	Challenger	Hard	Michail Pervolarakis	Malek Jaziri Kaichi Uchida	6–7(5–7), 7–6(7–3), [16–14]
Win	11–7	Sep 2022	Nonthaburi, Thailand	Challenger	Hard	Ajeet Rai	Francis Casey Alcantara Christopher Rungkat	6–1, 7–6(8–6)
Loss	11–8	Oct 2022	Seoul, South Korea	Challenger	Hard	Aleksandar Kovacevic	Kaichi Uchida Wu Tung-lin	7–6(7–2), 5–7, [9–11]

References

External links

• Chung Yun-seong at the Association of Tennis Professionals
• Chung Yun-seong at the International Tennis Federation

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