View source for Chung Hyeon

{{short description|South Korean tennis player}}
{{for|the baseball player with the same Korean name|Jung Hyun}}
{{family name hatnote|[[Jeong (Korean surname)|Chung]]||lang=Korean}}
{{Infobox tennis biography
|name                        = Hyeon Chung
|image                       = File:Hyeon Chung.jpg
|caption                     = Hyeon Chung at the [[2018 Australian Open]]
|country                     = {{KOR}}
|residence                   = [[Suwon]], South Korea
|birth_date                  = {{birth date and age|1996|5|19|df=y}}
|birth_place                 = Suwon, South Korea
|height                      = {{height|m=1.88|precision=0}} 
|turnedpro                   = 2014
|plays                       = Right-handed (two-handed backhand)
|coach                       = [[Neville Godwin]]
|careerprizemoney            = US $3,735,389
|singlesrecord               = {{tennis record|won=86|lost=69}}
|singlestitles               = 0 
|highestsinglesranking       = No. 19 (2 April 2018)
|currentsinglesranking       = No. 1450 (30 September 2024)
|AustralianOpenresult        = SF ([[2018 Australian Open – Men's singles|2018]])
|FrenchOpenresult            = 3R ([[2017 French Open – Men's singles|2017]])
|Wimbledonresult             = 1R ([[2015 Wimbledon Championships – Men's singles|2015]])
|USOpenresult                = 3R ([[2019 US Open – Men's singles|2019]])
|doublesrecord               = {{tennis record|won=11|lost=14}}
|doublestitles               = 0
|highestdoublesranking       = No. 187 (11 April 2016)
|currentdoublesranking       = 
|grandslamsdoublesresults    = 
|AustralianOpenDoublesresult = 3R ([[2018 Australian Open – Men's doubles|2018]])
|FrenchOpenDoublesresult     = 1R ([[2017 French Open – Men's doubles|2017]])
|WimbledonDoublesresult      =
|USOpenDoublesresult         = 2R ([[2017 US Open – Men's doubles|2017]])
|Mixed                       = yes
|mixedrecord                 = {{tennis record|won=0|lost=1}}
|AustralianOpenMixedresult   = 1R ([[2016 Australian Open – Mixed doubles|2016]])
|FrenchOpenMixedresult       = 
|WimbledonMixedresult        = 
|USOpenMixedresult           = 
|updated                     = 16 October 2024
|medaltemplates              =
{{Medal|Country|{{KOR}}}}
{{Medal|Sport|[[Tennis at the 2014 Asian Games|Men's tennis]]}}
{{MedalCompetition|[[Asian Games]]}}
{{Medal|Gold|[[2014 Asian Games|2014 Incheon]]|[[Tennis at the 2014 Asian Games – Men's doubles|Men's doubles]]}}
{{MedalCompetition|[[Universiade]]}}
{{Medal|Gold|[[2015 Summer Universiade|2015 Gwangju]]|[[Tennis at the 2015 Summer Universiade – Men's singles|Men's singles]]}}
{{Medal|Gold|[[2015 Summer Universiade|2015 Gwangju]]|Men's team}}
}}
{{Infobox Korean name
|hangul = 정현
|hanja  = 鄭泫 
|rr     = Jeong Hyeon
|mr     = Chŏng Hyŏn
}}

'''Chung Hyeon''' ({{korean|hangul=정현|hanja=鄭泫}}; {{IPA|ko|tɕəːŋ çʌn}};<ref>{{cite web|title=The pronunciation by Chung Hyeon himself|url=http://www.atpworldtour.com/-/media/player-names/hyeon-chung.mp3|work=ATPWorldTour.com|access-date=2018-01-09}}</ref> born 19 May 1996) is a South Korean professional [[tennis]] player.<ref name="atpprofile">{{cite web|url=http://www.atpworldtour.com/en/players/hyeon-chung/ch27/player-activity|title=ATP Profile|publisher=atpworldtour.com|access-date=19 September 2015}}</ref> He is the 2017 [[Next Generation ATP Finals|Next Gen Finals]] champion. As an unseeded player, he became the first Korean player to reach a [[Grand Slam (tennis)|Grand Slam]] semifinal at the [[2018 Australian Open – Men's singles|2018 Australian Open]].

==Junior career==
Chung took up [[tennis]] as a way to try to help maintain his eyesight after requiring glasses at a young age.<ref name="Tennis I">{{cite web|last1=Denefeld|first1=Rene|title=A Beginner's Guide: Chung Hyeon|url=http://thetennisisland.com/2015/02/14/a-beginners-guide-chung-hyeon/|website=The Tennis Island|date=14 February 2015 |access-date=13 May 2015}}</ref> He won the Eddie Herr International and [[Junior Orange Bowl]] Boys under-12s titles in December 2008, and was subsequently signed, along with his brother [[Chung Hong]], to the [[Nick Bollettieri]] Tennis Academy at [[IMG Academy|IMG]] in Florida.<ref>{{cite web|title=IMG signs Chung brothers; will train at the Nick Bollettieri Tennis Academy|url=http://www.imgacademy.com/latest-headlines/2009-04-09/img-signs-chung-brothers-will-train-nick-bollettieri-tennis-academy|work=IMG|access-date=13 May 2015|url-status=dead|archive-url=https://web.archive.org/web/20150518080621/http://www.imgacademy.com/latest-headlines/2009-04-09/img-signs-chung-brothers-will-train-nick-bollettieri-tennis-academy|archive-date=18 May 2015}}</ref> He began competing on the [[International Tennis Federation|ITF]] junior tour in 2012, and was runner-up in the [[2013 Wimbledon Championships – Boys' singles|2013 Wimbledon Boys' Singles]], a month after winning his first [[ITF Futures|Futures]] title.<ref>{{cite web|title=IMG Academy's Gianluigi Quinzi wins Junior Wimbledon championship|url=http://www.imgacademy.com/latest-headlines/2013-07-08/img-academy%E2%80%99s-gianluigi-quinzi-wins-junior-wimbledon-championship|work=IMG|access-date=13 May 2015|archive-url=https://web.archive.org/web/20150518080650/http://www.imgacademy.com/latest-headlines/2013-07-08/img-academy%E2%80%99s-gianluigi-quinzi-wins-junior-wimbledon-championship|archive-date=18 May 2015|url-status=dead}}</ref> He later competed in his first ATP tournament, the [[2013 Proton Malaysian Open – Singles|Malaysian Open]], being defeated in the first round. He reached a career junior high of No. 7, with an 84–32 win–loss record.<ref>{{cite web|url=http://www.itftennis.com/juniors/players/player/profile.aspx?playerid=100172987|title=Hyeon Chung Player Details|work=International Tennis Federation|access-date=19 September 2015}}</ref>

==Professional career==
===2014: Asian Games doubles Gold medal===
2014 saw Chung move full-time to the men's professional game, winning three Futures tournaments and the [[2014 Chang-Sat Bangkok Open – Singles|2014 Bangkok Open]], his first [[ATP Challenger Tour|Challenger]] level tournament.<ref name="Tennis I"/> He competed in the qualifying for the [[2014 US Open (tennis)|2014 US Open]] and won two matches for the [[South Korea Davis Cup team]] to help keep them in the [[2014 Davis Cup Asia/Oceania Zone Group I|Asia/Oceania Zone Group I]]. He also won gold in the doubles competition at the [[2014 Asian Games]]<ref>{{cite web|title=IMG Academy sweeps gold medals in singles and doubles men's tennis at Asian Games|url=http://www.imgacademy.com/latest-headlines/2014-10-01/img-academy-sweeps-gold-medals-singles-and-doubles-mens-tennis-asian|work=IMG|access-date=13 May 2015|archive-url=https://web.archive.org/web/20150713223232/http://www.imgacademy.com/latest-headlines/2014-10-01/img-academy-sweeps-gold-medals-singles-and-doubles-mens-tennis-asian|archive-date=13 July 2015|url-status=dead}}</ref> and ended 2014 ranked 151 in the [[ATP rankings]].<ref name="Tennis I"/>

===2015: Breakthrough===
Chung reached the final qualifying round for the [[2014 Australian Open|Australian Open]], but focused his efforts on the Challenger Tour. He won at the [[2015 McDonald's Burnie International|Burnie Challenger]] in February to reach the world's top 150<ref name="Tennis I"/> and subsequently received a Wildcard for the [[ATP World Tour]] competition at the [[2015 Miami Open|Miami Open]], getting to the second round of this [[ATP Masters 1000|Masters]] level tournament.<ref>{{cite web|title=Stars of Tomorrow: Hyeon Chung|url=http://www.atpworldtour.com/News/Tennis/2015/04/14/Houston-Wednesday-Chung-Feature.aspx|publisher=ATP|access-date=13 May 2015}}</ref> Two further Challenger titles followed in April and May 2015, which saw him enter the world top 100 for the first time.<ref>{{cite web|last1=Kwon|first1=Ji-youn|title=Chung Hyeon eyes Lee Hyung-taik's records|date=13 May 2015 |url=https://www.koreatimes.co.kr/www/news/sports/2015/05/136_178874.html|publisher=[[The Korea Times]]|access-date=13 May 2015}}</ref> His rapid rise up the rankings and an error on behalf of the Korean Tennis Federation meant that he missed the entry deadline for the [[2015 French Open]]. Although he was later handed a wildcard into the qualifying tournament, he was eliminated in the first round.<ref>{{cite web|title=French Open Men's Qualifying|url=http://tennisatlantic.com/tag/french-open-mens-qualifying/|work=Tennis Atlantic|access-date=19 May 2015}}</ref> Chung then lost in straight sets to unranked [[Nicholas Monroe]] in the first round of qualifiers in the [[2015 Topshelf Open – Men's singles|Topshelf Open]]. In the [[2015 Wimbledon Championships]], he reached his first main draw in a Grand Slam tournament, losing in five sets in the first round to [[Pierre-Hugues Herbert]]. Immediately following his first round loss at Wimbledon, Chung returned to his home country and won the Men's Singles and Men's Team events at the [[2015 Summer Universiade]] in Gwangju. At the [[2015 US Open (tennis)|2015 US Open]], Chung qualified for the main draw and recorded his first win in a Grand Slam against [[James Duckworth (tennis)|James Duckworth]]. Chung lost in the second round against fifth seed [[Stanislas Wawrinka]] in straight sets, despite taking each set to a tiebreak. He continued to play on both the Challenger and ATP tour through 2015, winning a further Challenger at [[2015 OEC Kaohsiung – Singles|Kaohsiung]] in September and reaching his first ATP quarterfinal at the [[2015 ATP Shenzhen Open|Shenzhen Open]].<ref>{{cite web|title=Berdych Wins All-Czech Contest; Cilic Reaches Semis|url=http://www.atpworldtour.com/en/news/berdych-cilic-robredo-chung-in-shenzhen-qf-action|work=ATP|access-date=12 November 2015}}</ref> He was awarded the year-end ATP Most Improved Player award for 2015, after climbing over 120 places to No. 51 in the rankings.<ref>{{cite web|title=Bryans, Chung, Djokovic, Federer, Paire & Zverev Honoured In 2015 ATP World Tour Awards|url=http://www.atpworldtour.com/en/news/atp-awards-page-2015|work=ATP|access-date=12 November 2015}}</ref>

===2016: Injury-shortened season===
Chung won his first round match in [[2016 Brisbane International|Brisbane]] against [[Sam Groth]]. He lost in the second round to the 3rd seed [[Marin Čilić]]. At the [[2016 Australian Open|Australian Open]] Chung lost in the first round to [[Novak Djokovic]].

In February, Chung lost in [[2016 Garanti Koza Sofia Open|Sofia]] in the first round to qualifier [[Marius Copil]]. In [[2016 ABN AMRO World Tennis Tournament|Rotterdam]] Chung reached second round, where he lost to [[Viktor Troicki]]. In [[2016 Open 13|Marseille]] he lost in the first round to [[David Goffin]]. In [[2016 Dubai Tennis Championships|Dubai]] Chung defeated [[Andreas Seppi]] in the first round.<ref>{{cite web|url=http://www.atpworldtour.com/en/news/lopez-reaches-400-wins-milestone-dubai-2016-monday|title=Lopez Reaches 400 Wins Milestone In Dubai|date=22 February 2016|access-date=12 March 2016}}</ref> Then he lost to [[Roberto Bautista Agut]], winning only a single game in this match.<ref>{{cite web|url=http://www.atpworldtour.com/en/news/bautista-berdych-dubai-2016-wednesday|title=Bautista Agut Sets Baghdatis Dubai QF Clash; Berdych To Face Kyrgios|date=24 February 2016|access-date=12 March 2016}}</ref> Chung won both singles in the [[2016 Davis Cup Asia/Oceania Zone Group I|Davis Cup]] tie against New Zealand. South Korea won 3–1.

After the [[2016 French Open]], Chung took nearly four months off to recover from an abdominal injury.<ref>{{cite web|title=Chung Returns In Nanchang Challenger|url=http://www.atpworldtour.com/en/news/challenger-chung-nanchang-2016|website=ATP World Tour|access-date=25 February 2018}}</ref>

===2017: Top 50, Next Gen Finals champion ===
Chung scored his first Australian Open match by defeating [[Renzo Olivo]]. He lost in the second round against eventual semifinalist [[Grigor Dimitrov]] despite winning the first set. In April, Chung reached the quarterfinals of the [[2017 Barcelona Open Banco Sabadell]], taking [[Rafael Nadal]] to a tie-break before eventually losing. To reach the quarterfinals, Chung came through qualifying and the main draw to record six wins in a row without dropping a set, including victories over [[Denis Istomin]], [[Phillip Kohlschreiber]] and [[Alexander Zverev Jr.|Alexander Zverev]].

In May, Chung competed at the [[2017 BMW Open]] in Munich, reaching the semifinals. In the second round, Chung recorded a victory against [[Gael Monfils]], who at a ranking of No. 16 was the highest-ranked player Chung had defeated. At the [[2017 French Open|French Open]], Chung achieved his first Grand Slam breakthrough by reaching the third round, including a win over 27th seed [[Sam Querrey]] in the first round. He lost against the eighth seed [[Kei Nishikori]] in five sets.

In August, Chung reached the third round of the [[Rogers Cup]], his best result at an [[ATP Masters 1000]] tournament to date, beating 13th-ranked [[David Goffin]] in the second round in straight sets. He qualified for the [[Next Generation ATP Finals]] in Milan and defeated [[Andrey Rublev (tennis)|Andrey Rublev]] in the final. As the undefeated champion, Chung won prize money of $390,000.

===2018: Major semifinal and top 20 debut===
Chung picked up his first big result of the year by reaching the quarterfinals of the [[2018 ASB Classic|Auckland Open]], recording a win over [[John Isner]] in the second round.

At the [[2018 Australian Open|Australian Open]], Chung made his breakthrough into the limelight by becoming the first South Korean player, male or female, to advance past the fourth round of a Grand Slam tournament. In the third round, he achieved his first victory over a Top 10 player, defeating world No. 4 Alexander Zverev in five sets.<ref>{{cite web|url=https://www.bbc.com/sport/tennis/42758104|title=Alexander Zverev beaten in five sets by Hyeon Chung|publisher=BBC Sport|date=20 January 2018|access-date=24 January 2018}}</ref> In the next round, Chung won a straight sets match against six-time Australian Open champion and former world number one [[Novak Djokovic]], who had just returned from injury.<ref>{{cite web|url=http://www.skysports.com/tennis/news/31870/11218189/hyeon-chung-beats-novak-djokovic-to-set-up-australian-open-quarter-final-against-tennys-sandgren|title=Chung beats Novak Djokovic to set up Australian Open quarter-final against Tennys Sandgren|publisher=SkySports|author=Raz Mirza|date=23 January 2018|access-date=24 January 2018}}</ref> This marked the first time since [[2007 Australian Open|2007]] that Djokovic had lost in straight sets at the Australian Open.<ref>{{cite web|url=http://www.tennis.com/pro-game/2018/01/hyeon-chung-novak-djokovic-2018-australian-open-fourth-round/71549/|title=Five takeaways from Hyeon Chung's Aussie Open win over Novak Djokovic|publisher=Tennis.com|date=22 January 2018|access-date=23 January 2018}}</ref> In the quarterfinals, Chung defeated unseeded American [[Tennys Sandgren]] to reach his first Grand Slam semifinal. He became the youngest Australian Open semifinalist since [[Marin Čilić]] in [[2010 Australian Open|2010]] and the lowest ranked since then-No. 86 [[Marat Safin]] in [[2004 Australian Open|2004]].<ref>{{cite web|title=From Milan To Melbourne, Chung Keeps Surging|url=http://www.atpworldtour.com/en/news/chung-sandgren-australian-open-2018-qf|website=atpworldtour.com|access-date=24 January 2018}}</ref> Chung played [[Roger Federer]] in the semi-final, but withdrew due to foot blisters when he was close to going two sets down.<ref>{{Cite web|url=https://ausopen.com/articles/match-report/federer-final-chung-retires|title=Federer into final as Chung retires|last=Ramsay|first=Alix|date=26 January 2018|website=ausopen.com|language=en|access-date=26 January 2018}}</ref> The Korean also played the doubles event with [[Radu Albot]] and defeated the defending champions [[Henri Kontinen]] and [[John Peers]].

Following the Australian Open, Chung went on to compete in the Delray Beach Open, where he defeated [[Cameron Norrie]] and [[Franko Škugor]] before bowing out to eventual winner [[Frances Tiafoe]]. He then played in the Mexican Open, where he defeated [[Donald Young (tennis)|Donald Young]] and [[Ernesto Escobedo]] before losing to [[Kevin Anderson (tennis)|Kevin Anderson]] in straight sets.

At [[2018 BNP Paribas Open|Indian Wells]], Chung beat [[Dušan Lajović]], [[Tomas Berdych]] and [[Pablo Cuevas]] to advance to his maiden Masters quarterfinals appearance, but lost to Roger Federer in straight sets. At [[2018 Miami Open|Miami]], Chung defeated [[Matthew Ebden]], [[Michael Mmoh]], and [[João Sousa]], reaching the quarterfinals where he lost in straight sets to [[John Isner]], who went on to win the tournament. He did not compete at the [[2018 French Open]] or at the [[2018 Wimbledon Championships]].

===2019–2020: Return to tour, back to Challenger titles, US Open third round===

Seeded 24th at the [[2019 Australian Open]], Chung faced [[Bradley Klahn]] in the first round. He narrowly lost the first two sets in tiebreakers, but came back to win in five sets, advancing to the second round where he lost in four sets to [[Pierre-Hugues Herbert]].

In the 2019 season, he struggled with injury, falling outside of the top 150 from a career-high ranking of No. 19. Chung returned at [[2019 Chengdu Challenger]].<ref>{{cite web|title=The Professor Is Back: Chung Returns At Chengdu Challenger|url=https://www.atptour.com/en/news/chengdu-challenger-2019-chung-comeback|website = atpworldtour.com|publisher = ATP|date = 30 July 2019|access-date = 1 August 2019}}</ref>

He reached the third round of the [[2019 US Open (tennis)|2019 US Open]] for the first time at this Major. However, he did not play after October 2020 when he played two qualifying matches at the [[2020 French Open|2020 Roland Garros]].<ref>{{cite web|url=https://www.archysport.com/2021/10/hyeon-chung-why-dont-you-play-tennis-serious-back-injury/|title=Hyeon Chung, why don't you play tennis? Serious back injury|work=Archysport|date=18 January 2022|access-date=18 January 2022}}</ref>

===2022–2023: Comeback===
After two years of absence from the ATP tour he came back to play doubles with compatriot [[Kwon Soonwoo]] at the [[2022 Korea Open (tennis)|2022 Korea Open]].<ref>{{cite web | url=https://www.atptour.com/en/news/seoul-sofia-tel-aviv-scouting-report-2022 | title=Scouting Report: Djokovic Headlines in Tel Aviv, Ruud in Seoul & Sinner in Sofia &#124; ATP Tour &#124; Tennis }}</ref><ref>{{cite web | url=https://www.tennisworldusa.org/tennis/news/ATP_Tennis/121161/exaustralian-open-semifinalist-chung-hyeon-to-play-first-tournament-in-two-years-/ | title=Ex-Australian Open semifinalist Chung Hyeon to play first tournament in two years | date=25 September 2022 }}</ref><ref>{{cite web | url=https://www.atptour.com/en/news/chung-seoul-2022-feature | title=Hyeon Chung: 'I'm Just Happy to Play Again' &#124; ATP Tour &#124; Tennis }}</ref> They won their first round match against [[Hans Hach Verdugo]] and [[Treat Huey]] in three sets and second against fourth seeds [[André Göransson]] and [[Ben McLachlan]].

For his singles return he accepted a wildcard into the draw at the [[2023 Seoul Open Challenger|2023 Seoul Challenger]].<ref>{{Cite web|url=https://www.tennisworldusa.org/tennis/news/ATP_Tennis/131300/former-australian-open-semifinalist-returns-to-action-after-years/|title=Former Australian Open semi-finalist returns to action after years!|website=Tennis World USA|date=18 April 2023 }}</ref> In his first match back, he lost to [[Jordan Thompson (tennis)|Jordan Thompson]] in straight sets. His next match in [[2023 Busan Open - Singles|Busan]] was an improvement, albeit  unsuccessful, as he took a set against [[Yasutaka Uchiyama]], eventually losing the match in three sets.

He entered the [[2023 Surbiton Trophy]] using a protected ranking but was defeated by [[Andy Murray]] in the first round. He also entered the [[2023 Nottingham Open]] but lost to third seed [[Nuno Borges (tennis)|Nuno Borges]].

==Equipment==
Chung currently uses and endorses the [[Yonex]] Vcore Duel G 97 310g, but now has a paint job of the [[Yonex]] Vcore Pro 97 310g.<ref name=":0">{{Cite news|url=http://www.seoul.co.kr/news/newsView.php?id=20180124500125|title=호주오픈 4강 정현, 장비 알파에서 오메가까지|last=Choi|first=Byung-kyu|date=2018-01-24|work=SeoulNews|access-date=2018-06-23|language=ko|trans-title=Find out about Jung-Hyun's equipment from Alpha to Omega.}}</ref> Although the Duel G 97 is a 16x20, he has it specially having it strung at 16x19 and by skipping one cross string when stringing. His string of choice is the Luxilon ALU Power.<ref name=":0" /> He wears [[Lacoste]] apparel and wears [[Nike, Inc.|Nike]] Air Zoom Vapor X as his shoe.

== ATP Next Generation finals ==

===Singles: 1 (1 title)===
{|class="wikitable"
!Result
!{{ns}}Date{{ns}}
!Tournament
!Surface
!Opponent
!class="unsortable"|Score
|-
|bgcolor=98FB98|Win
|[[2017 Next Generation ATP Finals#Draw|2017]]
|[[Next Generation ATP Finals]], Italy
|Hard (i)
|{{flagicon|RUS}} [[Andrey Rublev]]
|3–4<sup>(5–7)</sup>, 4–3<sup>(7–2)</sup>, 4–2, 4–2
|}

==ATP Challenger Tour finals==

===Singles: 12 (9 titles, 3 runner-ups)===
{|
|-valign=top
|
{|class=wikitable style=font-size:97%
!Legend
|-bgcolor=moccasin
|ATP Challenger Tour (9–3)
|}
|
{|class=wikitable style=font-size:97%
!Finals by surface
|-
|Hard (8–3)
|-
|Clay (1–0)
|-
|Grass (0–0)
|-
|Carpet (0–0)
|}
|}

{|class="sortable wikitable"
!Result
!class="unsortable"|W–L
!{{ns}}Date{{ns}}
!Tournament
!Tier
!Surface
!Opponent
!class="unsortable"|Score
|-
|bgcolor=98FB98|Win
|<small>1–0</small>
|[[2014 Chang-Sat Bangkok Open – Singles|{{dts|Aug 2014}}]]
|style=background:moccasin|[[2014 Chang-Sat Bangkok Open|Bangkok]], Thailand
|style=background:moccasin|Challenger
|Hard
|{{flagicon|AUS}} [[Jordan Thompson (tennis)|Jordan Thompson]]
|7–6<sup>(7–0)</sup>, 6–4
|-
|bgcolor=98FB98|Win
|<small>2–0</small>
|[[2015 McDonald's Burnie International – Men's singles|{{dts|Feb 2015}}]]
|style=background:moccasin|[[2015 McDonald's Burnie International|Burnie]], Australia
|style=background:moccasin|Challenger
|Hard
|{{flagicon|AUS}} [[Alex Bolt]]
|6–2, 7–5
|-
|bgcolor=FFA07A|Loss
|<small>2–1</small>
|[[2015 Launceston Tennis International – Men's singles|{{dts|Feb 2015}}]]
|style=background:moccasin|[[2015 Launceston Tennis International|Launceston]], Australia
|style=background:moccasin|Challenger
|Hard
|{{flagicon|USA}} [[Bjorn Fratangelo]]
|6–4, 2–6, 5–7
|-
|bgcolor=98FB98|Win
|<small>3–1</small>
|[[2015 Savannah Challenger – Singles|{{dts|Apr 2015}}]]
|style=background:moccasin|[[2015 Savannah Challenger|Savannah]], USA
|style=background:moccasin|Challenger
|Clay (green)
|{{flagicon|IRL}} [[James McGee (tennis)|James McGee]]
|6–3, 6–2
|-
|bgcolor=98FB98|Win
|<small>4–1</small>
|[[2015 Busan Open – Singles|{{dts|May 2015}}]]
|style=background:moccasin|[[2015 Busan Open|Busan]], South Korea
|style=background:moccasin|Challenger
|Hard
|{{flagicon|SVK}} [[Lukáš Lacko]]
|6–3, 6–1
|-
|bgcolor=FFA07A|Loss
|<small>4–2</small>
|[[2015 Lecoq Seoul Open – Men's singles|{{dts|May 2015}}]]
|style=background:moccasin|[[2015 Lecoq Seoul Open|Seoul]], South Korea
|style=background:moccasin|Challenger
|Hard
|{{flagicon|JPN}} [[Go Soeda]]
|6–3, 3–6, 3–6
|-
|bgcolor=98FB98|Win
|<small>5–2</small>
|[[2015 OEC Kaohsiung – Singles|{{dts|Sep 2015}}]]
|style=background:moccasin|[[2015 OEC Kaohsiung|Kaohsiung]], Taiwan
|style=background:moccasin|Challenger
|Hard
|{{flagicon|IND}} [[Yuki Bhambri]]
|7–5, 6–4
|-
|bgcolor=FFA07A|Loss
|<small>5–3</small>
|[[2016 ATP Challenger China International – Nanchang – Singles|{{dts|Sep 2016}}]]
|style=background:moccasin|[[2016 ATP Challenger China International – Nanchang|Nanchang]], China
|style=background:moccasin|Challenger
|Hard
|{{flagicon|JPN}} [[Hiroki Moriya]]
|6–4, 1–6, 4–6
|-
|bgcolor=98FB98|Win
|<small>6–3</small>
|[[2016 OEC Kaohsiung – Singles|{{dts|Sep 2016}}]]
|style=background:moccasin|Kaohsiung, Taiwan <small>(2)</small>
|style=background:moccasin|Challenger
|Hard
|{{flagicon|KOR}} [[Lee Duck-hee]]
|6–4, 6–2
|-
|bgcolor=98FB98|Win
|<small>7–3</small>
|[[2016 Kobe Challenger – Singles|{{dts|Nov 2016}}]]
|style=background:moccasin|[[2016 Kobe Challenger|Kobe]], Japan
|style=background:moccasin|Challenger
|Hard (i)
|{{flagicon|AUS}} [[James Duckworth (tennis)|James Duckworth]]
|6–4, 7–6<sup>(7–2)</sup>
|-
|bgcolor=98FB98|Win
|<small>8–3</small>
|[[2017 Tennis Championships of Maui – Singles|{{dts|Jan 2017}}]]
|style=background:moccasin|[[2017 Tennis Championships of Maui|Maui]], USA
|style=background:moccasin|Challenger
|Hard 
|{{flagicon|JPN}} [[Taro Daniel]]
|7–6<sup>(7–3)</sup>, 6–1
|-
|bgcolor=98FB98|Win
|<small>9–3</small>
|[[2019 Chengdu Challenger – Singles|{{dts|Aug 2019}}]]
|style=background:moccasin|[[2019 Chengdu Challenger|Chengdu]], China
|style=background:moccasin|Challenger
|Hard 
|{{flagicon|JPN}} [[Yuichi Sugita]]
|6–4, 6–3
|}

==ITF Futures finals==

===Singles: 7 (4 titles, 3 runner-ups)===
{|
|-valign=top
|
{|class=wikitable style=font-size:97%
!Legend
|-bgcolor=cffcff
|ITF Futures (4–3)
|}
|
{|class=wikitable style=font-size:97%
!Finals by surface
|-
|Hard (4–3)
|-
|Clay (0–0)
|-
|Grass (0–0)
|-
|Carpet (0–0)
|}
|}

{|class="sortable wikitable"
!Result
!class="unsortable"|W–L
!{{ns}}Date{{ns}}
!Tournament
!Tier
!Surface
!Opponent
!class="unsortable"|Score
|-
|bgcolor=FFA07A|Loss
|<small>0–1</small>
|{{dts|May 2013}}
|style=background:#cffcff|South Korea F2, Seoul
|style=background:#cffcff|Futures
|Hard
|{{flagicon|USA}} [[Daniel Nguyen]]
|6–4, 5–7, 4–6 
|-
|bgcolor=98FB98|Win
|<small>1–1</small>
|{{dts|Jun 2013}}
|style=background:#cffcff|South Korea F6, Gimcheon
|style=background:#cffcff|Futures
|Hard
|{{flagicon|ESP}} [[Enrique López Pérez]]
|6–2, 6–3 
|-
|bgcolor=98FB98|Win
|<small>2–1</small>
|{{dts|Feb 2014}}
|style=background:#cffcff|Thailand F1, Nonthaburi
|style=background:#cffcff|Futures
|Hard
|{{flagicon|KOR}} [[Nam Ji-sung]]
|6–2, 7–6<sup>(7–4)</sup>
|-
|bgcolor=98FB98|Win
|<small>3–1</small>
|{{dts|Mar 2014}}
|style=background:#cffcff|Thailand F3, Nonthaburi
|style=background:#cffcff|Futures
|Hard
|{{flagicon|GBR}} [[Marcus Willis]]
|6–2, 6–4 
|-
|bgcolor=FFA07A|Loss
|<small>3–2</small>
|{{dts|Mar 2014}}
|style=background:#cffcff|China F3, Yuxi
|style=background:#cffcff|Futures
|Hard
|{{flagicon|CHN}} [[Zhang Ze]]
|6–7<sup>(3–7)</sup>, 6–7<sup>(3–7)</sup> 
|-
|bgcolor=98FB98|Win
|<small>4–2</small>
|{{dts|Jun 2014}}
|style=background:#cffcff|South Korea F3, Changwon
|style=background:#cffcff|Futures
|Hard
|{{flagicon|KOR}} [[Cho Min-hyeok]]
|6–1, 2–6, 7–5 
|-
|bgcolor=FFA07A|Loss
|<small>4–3</small>
|{{dts|Jun 2014}}
|style=background:#cffcff|South Korea F4, Daegu
|style=background:#cffcff|Futures
|Hard
|{{flagicon|KOR}} Kim Cheong-eui
|5–7, 6–7<sup>(5–7)</sup>
|}

== Performance timelines ==
{{Performance key}}
===Singles===
''Current through the [[2021 Western & Southern Open]].''
{|class=wikitable style=text-align:center;font-size:96%
!Tournament!!|[[2013 ATP Tour|2013]]!!|[[2014 ATP Tour|2014]]!![[2015 ATP Tour|2015]]!![[2016 ATP Tour|2016]]!![[2017 ATP Tour|2017]]!![[2018 ATP Tour|2018]]!![[2019 ATP Tour|2019]]!![[2020 ATP Tour|2020]]!![[2021 ATP Tour|2021]]!!SR!!W–L!!Win %
|-
|colspan=15 align=left|[[Grand Slam (tennis)|'''Grand Slam tournaments''']]
|-
|align=left|[[Australian Open]]
|A
|A
|[[2015 Australian Open – Men's singles qualifying|Q3]]
|bgcolor=afeeee|[[2016 Australian Open – Men's singles|1R]]
|bgcolor=afeeee|[[2017 Australian Open – Men's singles|2R]]
|bgcolor=yellow|[[2018 Australian Open – Men's singles|SF]]
|bgcolor=afeeee|[[2019 Australian Open – Men's singles|2R]]
|A
|A
|0 / 4
|7–4
|64%
|-
|align=left|[[French Open]]
|A
|A
|[[2015 French Open – Men's singles qualifying|Q1]]
|bgcolor=afeeee|[[2016 French Open – Men's singles|1R]]
|bgcolor=afeeee|[[2017 French Open – Men's singles|3R]]
|A
|A
|[[2020 French Open – Men's singles qualifying|Q2]]
|A
|0 / 2
|2–2
|50%
|-
|align=left|[[The Championships, Wimbledon|Wimbledon]]
|A
|A
|bgcolor=afeeee|[[2015 Wimbledon Championships – Men's singles|1R]]
|A
|A
|A
|A
|style=color:#767676|NH
|A
|0 / 1
|0–1
|0%
|-
|align=left|[[US Open (tennis)|US Open]]
|A
|[[2014 US Open – Men's singles qualifying|Q2]]
|style=background:#afeeee|[[2015 US Open – Men's singles|2R]]
|A
|style=background:#afeeee|[[2017 US Open – Men's singles|2R]]
|style=background:#afeeee|[[2018 US Open – Men's singles|2R]]
|style=background:#afeeee|[[2019 US Open – Men's singles|3R]]
|A
|A
|0 / 4
|5–4
|55%
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Win–loss
|0–0
|0–0
|1–2
|0–2
|4–3
|6–2
|3–2
|0–0
|0–0
|0 / 11
|14–11
|56%
|-
|colspan=15 align=left|'''Year-end championships'''
|-
|align=left|[[ATP Finals]]
|colspan=9 |Did not qualify
|0 / 0
|0–0
|–
|-
|colspan=15 align=left|'''[[ATP Tour Masters 1000]]'''
|-
|align=left|[[Indian Wells Masters]]
|A
|A
|A
|bgcolor=afeeee|[[2016 BNP Paribas Open – Men's singles|1R]]
|A
|bgcolor=ffebcd|[[2018 BNP Paribas Open – Men's singles|QF]]
|A
|style=color:#767676|NH
|A
|0 / 2
|3–2
|60%
|-
|align=left|[[Miami Open (tennis)|Miami Open]]
|A
|A
|bgcolor=afeeee|[[2015 Miami Open – Men's singles|2R]]
|bgcolor=afeeee|[[2016 Miami Open – Men's singles|1R]]
|bgcolor=afeeee|[[2017 Miami Open – Men's singles|1R]]
|bgcolor=ffebcd|[[2018 Miami Open – Men's singles|QF]]
|A
|style=color:#767676|NH
|A
|0 / 4
|4–4
|50%
|-
|align=left|[[Monte-Carlo Masters]]
|A
|A
|A
|A
|A
|A
|A
|style=color:#767676|NH
|A
|0 / 0
|0–0
|–
|-
|align=left|[[Madrid Open (tennis)|Madrid Open]]
|A
|A
|A
|A
|A
|bgcolor=afeeee|[[2018 Mutua Madrid Open – Men's singles|1R]]
|A
|style=color:#767676|NH
|A
|0 / 1
|0–1
|0%
|-
|align=left|[[Italian Open (tennis)|Italian Open]]
|A
|A
|A
|A
|A
|A
|A
|A
|A
|0 / 0
|0–0
|–
|-
|align=left|[[Canadian Open (tennis)|Canadian Open]]
|A
|A
|bgcolor=afeeee|[[2015 Rogers Cup – Men's singles|1R]]
|A
|bgcolor=afeeee|[[2017 Rogers Cup – Men's singles|3R]]
|A
|A
|style=color:#767676|NH
|A
|0 / 2
|2–2
|50%
|-
|align=left|[[Cincinnati Masters]]
|A
|A
|[[2015 Western & Southern Open – Men's singles|Q2]]
|A
|bgcolor=afeeee|[[2017 Western & Southern Open – Men's singles|1R]]
|bgcolor=afeeee|[[2018 Western & Southern Open – Men's singles|2R]]
|A
|A
|A
|0 / 2
|1–2
|33%
|-
|align=left|[[Shanghai Masters (tennis)|Shanghai Masters]]
|A
|A
|[[2015 Shanghai Rolex Masters – Singles#Qualifying|Q2]]
|A
|bgcolor=afeeee|[[2017 Shanghai Rolex Masters – Singles|2R]]
|bgcolor=afeeee|[[2018 Shanghai Rolex Masters – Singles|2R]]
|A
|colspan=2 style=color:#767676|NH
|0 / 2
|2–2
|50%
|-
|align=left|[[Paris Masters]]
|A
|A
|A
|A
|bgcolor=afeeee|[[2017 Rolex Paris Masters – Singles|2R]]
|A
|A
|A
|A
|0 / 1
|1–1
|50%
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Win–loss
|0–0
|0–0
|1–2
|0–2
|4–5
|8–5
|0–0
|0–0
|0–0
|0 / 14
|13–14
|48%
|-
|colspan=15 align=left|'''National representation'''
|-
|align=left|[[Tennis at the Summer Olympics|Summer Olympics]]
|colspan=3 style=color:#767676|Not Held
|A
|colspan=4 style=color:#767676|Not Held
|A
|0 / 0
|0–0
|–
|-
|align=left|[[Davis Cup]]
|A
|bgcolor=ecf2ff|[[2014 Davis Cup Asia/Oceania Zone Group I|Z1]]
|bgcolor=ecf2ff|[[2015 Davis Cup Asia/Oceania Zone Group I|Z1]]
|bgcolor=ecf2ff|[[2016 Davis Cup Asia/Oceania Zone Group I|Z1]]
|bgcolor=ecf2ff|[[2017 Davis Cup Asia/Oceania Zone Group I|Z1]]
|A
|A
|A
|A
|0 / 0
|10–2
|83%
|-
|colspan=15 align=left|'''Career statistics'''
|-
!!!2013!!2014!!2015!!2016!!2017!!2018!!2019!!2020!!2021!!colspan=3|Career
|-style=background:#efefef
|align=left|Tournaments
|1
|0
|9
|13
|19
|18
|8
|0
|0
|colspan=3|'''68'''
|-style=font-weight:bold;background:#efefef
|align=left|Titles
|0
|0
|0
|0
|0
|0
|0
|0
|0
|colspan=3|0
|-style=font-weight:bold;background:#efefef
|align=left|Finals
|0
|0
|0
|0
|0
|0
|0
|0
|0
|colspan=3|0
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Overall win–loss
|0–1
|2–1
|12–10
|8–13
|29–18
|29–18
|6–8
|0–0
|0–0
|colspan=3|86–69
|-style=font-weight:bold;background:#efefef
|align=left|Win%
|0%
|66%
|54%
|38%
|62%
|62%
|43%
|–
|–
|colspan=3|{{tennis win percentage|won=86|lost=69}}
|-style=background:#efefef
|align=left|'''Year-end ranking'''
|550
|173
|51
|104
|58
|25
|128
|161
|487
|colspan=3|'''$3,382,228'''
|}

===Doubles===
''Current through to [[2021 Australian Open]].''
{|class=wikitable style=text-align:center;font-size:96%
!Tournament!![[2015 ATP Tour|2015]]!![[2016 ATP Tour|2016]]!![[2017 ATP Tour|2017]]!![[2018 ATP Tour|2018]]!![[2019 ATP Tour|2019]]!![[2020 ATP Tour|2020]]!![[2021 ATP Tour|2021]]!!SR!!W–L!!Win %
|-
|colspan=15 align=left|[[Grand Slam (tennis)|'''Grand Slam tournaments''']]
|-
|align=left|[[Australian Open]]
|A
|bgcolor=afeeee|[[2016 Australian Open – Men's doubles|1R]]
|A
|bgcolor=afeeee|[[2018 Australian Open – Men's doubles|3R]]
|A
|A
|A
|0 / 2
|2–2
|50%
|-
|align=left|[[French Open]]
|A
|A
|bgcolor=afeeee|[[2017 French Open – Men's doubles|1R]]
|A
|A
|A
|A
|0 / 1
|0–1
|0%
|-
|align=left|[[The Championships, Wimbledon|Wimbledon]]
|A
|A
|A
|A
|A
|style=color:#767676|NH
|A
|0 / 0
|0–0
|–
|-
|align=left|[[US Open (tennis)|US Open]]
|style=background:#afeeee|[[2015 US Open – Men's doubles|1R]]
|A
|style=background:#afeeee|[[2017 US Open – Men's doubles|2R]]
|A
|A
|A
|A
|0 / 2
|1–2
|33%
|-style=font-weight:bold;background:#efefef
|style=text-align:left|Win–loss
|0–1
|0–1
|1–2
|2–1
|0–0
|0–0
|0–0
|0 / 5
|3–5
|38%
|}

==Record against top 10 players==
Hyeon's match record against those who have been [[ATP rankings|ranked]] in the top 10, with those who have been No. 1 in boldface
{{Div col|colwidth=22em}}
*{{flagicon|RUS}} [[Andrey Rublev]] 3–1
*{{flagicon|RUS}} '''[[Daniil Medvedev]]''' 2–0
*{{flagicon|GER}} [[Alexander Zverev]] 2–1
*{{flagicon|CYP}} [[Marcos Baghdatis]] 1–0
*{{flagicon|ITA}} [[Matteo Berrettini]] 1–0
*{{flagicon|FRA}} [[Gaël Monfils]] 1–0
*{{flagicon|CAN}} [[Milos Raonic]] 1–0
*{{flagicon|USA}} [[Jack Sock]] 1–0
*{{flagicon|ESP}} [[Roberto Bautista Agut]] 1–1
*{{flagicon|SRB}} '''[[Novak Djokovic]]''' 1–1
*{{flagicon|CAN}} [[Denis Shapovalov]] 1–1
*{{flagicon|ESP}} [[Fernando Verdasco]] 1–1
*{{flagicon|CZE}} [[Tomáš Berdych]] 1–2
*{{flagicon|CRO}} [[Marin Čilić]] 1–3
*{{flagicon|BEL}} [[David Goffin]] 1–3
*{{flagicon|USA}} [[John Isner]] 1–3
*{{flagicon|ESP}} [[Pablo Carreño Busta]] 0–1
*{{flagicon|BUL}} [[Grigor Dimitrov]] 0–1
*{{flagicon|ESP}} [[David Ferrer]] 0–1
*{{flagicon|ITA}} [[Fabio Fognini]] 0–1
*{{flagicon|FRA}} [[Richard Gasquet]] 0–1
*{{flagicon|LAT}} [[Ernests Gulbis]] 0–1
*{{flagicon|GBR}} '''[[Andy Murray]]''' 0-1
*{{flagicon|JPN}} [[Kei Nishikori]] 0–1
*{{flagicon|ARG}} [[Juan Martín del Potro]] 0–1
*{{flagicon|SUI}} [[Stan Wawrinka]] 0–1
*{{flagicon|RSA}} [[Kevin Anderson (tennis)|Kevin Anderson]] 0–2
*{{flagicon|SUI}} '''[[Roger Federer]]''' 0–2
*{{flagicon|ESP}} '''[[Rafael Nadal]]''' 0–3
{{div col end}}
:<small>''* Statistics correct as of 06 June 2023.''</small>

==Wins over top 10 players==
{|class="wikitable sortable"
|-
|'''Season'''||2014||2015||2016||2017||2018||2019||'''Total'''
|-align=center
|'''Wins'''||0||0||0||0||1||0||'''1'''
|}

{|class="wikitable sortable"
!#
!Player
!Rank
!Event
!Surface
!Rd
!Score
!CH Rank
|-
|colspan=8 style=text-align:center|'''[[2018 ATP World Tour|2018]]'''
|-
|1.
|{{flagicon|GER}} [[Alexander Zverev Jr.|Alexander Zverev]]
|align=center bgcolor=EEE8AA|4
|bgcolor=f3e6d7|[[2018 Australian Open – Men's singles|Australian Open]], Melbourne, Australia
|bgcolor=ccccff|Hard
|bgcolor=afeeee|3R
|5–7, 7–6<sup>(7–3)</sup>, 2–6, 6–3, 6–0
|align=center|58
|}

==References==
{{reflist}}
<!--
==Notes==
{{notelist}}
-->

==External links==
{{commons category|Chung Hyeon}}
* {{ATP}}
* {{ITF}}
* {{Davis Cup player}}

{{s-start}}
{{s-ach|aw}}
{{succession box|
|before={{flagicon|ESP}} [[Roberto Bautista Agut]]
|after={{flagicon|FRA}} [[Lucas Pouille]]
|title=[[ATP World Tour Awards#Most Improved Player|ATP Most Improved Player]]
|years=[[2015 ATP World Tour|2015]]
|}}
{{s-end}}

{{DEFAULTSORT:Chung, Hyeon}}
[[Category:1996 births]]
[[Category:Living people]]
[[Category:Sportspeople from Suwon]]
[[Category:South Korean male tennis players]]
[[Category:Tennis players at the 2014 Asian Games]]
[[Category:Asian Games medalists in tennis]]
[[Category:Asian Games gold medalists for South Korea]]
[[Category:Medalists at the 2014 Asian Games]]
[[Category:Summer World University Games medalists in tennis]]
[[Category:FISU World University Games gold medalists for South Korea]]
[[Category:Medalists at the 2015 Summer Universiade]]
[[Category:21st-century South Korean people]]