Nam Ji-sung

Nam Ji-sung
Hangul	남지성
RR	Nam Jiseong
MR	Nam Chisŏng

Nam Ji-sung
	Nam in 2026
Full name	Nam Ji-sung
Country (sports)	South Korea
Residence	Seoul, South Korea
Born	15 August 1993 (age 33); Busan, South Korea
Plays	Right-handed (two handed-backhand)
Prize money	$293,832
Singles
Career record	3–6
Career titles	0
Highest ranking	No. 236 (12 August 2019)
Current ranking	No. 708 (15 April 2024)
Grand Slam singles results
Australian Open	Q1 (2020)
Doubles
Career record	11–18
Career titles	0
Highest ranking	No. 102 (3 February 2020)
Current ranking	No. 143 (15 March 2026)
Grand Slam doubles results
Australian Open	2R (2020, 2021)
Team competitions
Davis Cup	3–7
	Last updated on: 15 April 2024.

Nam Ji-sung (born 15 August 1993) is a South Korean tennis player. He has a career high ATP singles ranking of world No. 236 achieved on 12 August 2019. He also has a career high ATP doubles ranking of No. 102 achieved on 3 February 2020. In 2024, he became the first Korean in 13 years to win the Busan Open in doubles.^[1]

Playing for South Korea in Davis Cup, Nam has a W/L record of 3–7.

Performance timeline

Key
W	F	SF	QF	#R	RR	Q#	DNQ	A	NH

(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.

Singles

Tournament	2020	SR	W–L	Win%
Grand Slam tournaments
Australian Open	Q1	0 / 0	0–0	–
French Open		0 / 0	0–0	–
Wimbledon	NH	0 / 0	0-0	–
US Open		0 / 0	0-0	–
Win–loss	0–0	0 / 0	0-0	–

Challenger and Futures/World Tennis Tour finals

Singles: 17 (6–11)

Legend (singles)
ATP Challenger Tour (0–2)
ITF Futures/World Tennis Tour (6–9)

Titles by surface
Hard (4–10)
Clay (2–1)
Grass (0–0)
Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1–0	Jun 2012	Japan F5, Karuizawa	Futures	Clay	Adam El Mihdawy	6–4, 6–4
Loss	1–1	Jul 2012	Indonesia F1, Jakarta	Futures	Hard	Christopher Rungkat	6–7^(5–7), 1–6
Loss	1–2	Feb 2014	Thailand F1, Nonthaburi	Futures	Hard	Chung Hyeon	2–6, 6–7^(4–7)
Loss	1–3	Jun 2016	Korea F2, Sangju	Futures	Hard	Noh Sang-woo	4–6, 1–6
Win	2–3	Aug 2016	Korea F6, Ansung	Futures	Clay (i)	Makoto Ochi	5–7, 6–1, 6–1
Loss	2–4	Sep 2016	Korea F8, Ansung	Futures	Clay (i)	Lim Yong-kyu	0–6, 3–6
Loss	2–5	May 2018	Vietnam F2, Thừa Thiên-Huế	Futures	Hard	Rio Noguchi	6–7^(5–7), 3–6
Win	3–5	May 2018	Vietnam F3, Thừa Thiên-Huế	Futures	Hard	Pruchya Isaro	6–4, 6–2
Loss	3–6	Jun 2018	Korea F2, Gyeongsan	Futures	Hard	Chung Yun-seong	4–6, 3–6
Loss	3–7	Jun 2018	Korea F3, Daegu	Futures	Hard	Chung Yun-seong	1–6, 3–6
Loss	3–8	Aug 2018	Gwangju, Korea, Rep.	Challenger	Hard	Maverick Banes	3–6, 6–4, 4–6
Win	4–8	Aug 2018	Korea F5, Gimcheon	Futures	Hard	Makoto Ochi	6–4, 6–1
Loss	4–9	Mar 2019	M15 Nishi-Tama, Japan	World Tennis Tour	Hard	Shintaro Imai	2–6, 2–6
Loss	4–10	May 2019	M25 Nonthaburi, Thailand	World Tennis Tour	Hard	Shuichi Sekiguchi	1–6, 4–6
Loss	4–11	Jun 2019	Columbus, USA	Challenger	Hard (i)	Mikael Torpegaard	1–6, 5–7
Win	5–11	Apr 2022	M15 Chiang Rai, Thailand	World Tennis Tour	Hard	Bai Yan	6–2, 6-4
Win	6–11	May 2025	M15 Daegu, South Korea	World Tennis Tour	Hard	Park Ui-sung	6–1, 6-2

Doubles: 82 (45 titles, 37 runners-up)

Legend (doubles)
ATP Challenger Tour (15–16)
ITF Futures Tour (30–21)

Titles by surface
Hard (41–35)
Clay (4–2)
Grass (0–0)
Carpet (0–0)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0–1	Apr 2011	Australia F3, Ipswich	Futures	Clay	Cho Soong-jae	James Lemke Dane Propoggia	7–6^(7–4), 2–6, [5–10]
Win	1–1	May 2012	China F7, Zhangjiagang	Futures	Hard	Noh Sang-woo	Gong Maoxin Xue Feng	6–2, 6–4
Win	2–1	Jul 2012	Indonesia F2, Jakarta	Futures	Hard	Lim Yong-kyu	Gao Peng Gao Wan	6–2, 6–0
Loss	2–2	Aug 2012	USA F23, Edwardsville	Futures	Hard	Chung Hyeon	Daniel Nguyen Ryan Rowe	3–6, 5–7
Loss	2–3	Oct 2012	Seoul, Korea, Rep.	Challenger	Hard	Lim Yong-kyu	Lee Hsin-han Peng Hsien-yin	6–7^(3–7), 5–7
Loss	2–4	Mar 2013	USA F7, Calabasas	Futures	Hard	Lim Yong-kyu	Saketh Myneni Sanam Singh	7–6^(7–3), 2–6, [12–14]
Loss	2–5	Mar 2013	USA F8, Costa Mesa	Futures	Hard	Cho Min-hyeok	Michael McClune Michael Venus	1–6, 3–6
Loss	2–6	May 2013	Korea F2, Seoul	Futures	Hard	Chung Hyeon	An Jae-sung Lim Yong-kyu	3–6, 2–6
Loss	2–7	May 2013	Korea F3, Daegu	Futures	Hard	Lim Yong-kyu	Dane Propoggia Rubin Statham	1–6, 2–6
Win	3–7	Jun 2013	Korea F4, Changwon	Futures	Hard	Lim Yong-kyu	Laurynas Grigelis Enrique López Pérez	5–7, 6–4, [11–9]
Loss	3–8	Jun 2013	Korea F7, Gimcheon	Futures	Hard	Lim Yong-kyu	Huang Liang-chi Enrique López Pérez	4–6, 2–6
Loss	3–9	Aug 2013	China F7, Tianjin	Futures	Hard	Chung Hyeon	Sriram Balaji Ranjeet Virali-Murugesan	3–6, 2–6
Loss	3–10	Sep 2013	Bangkok, Thailand	Challenger	Hard	Jeong Suk-young	Chen Ti Huang Liang-chi	3–6, 2–6
Win	4–10	Feb 2014	Thailand F2, Nonthaburi	Futures	Hard	Chung Hyeon	Lewis Burton Marcus Willis	6–4, 6–7^(4–7), [10–7]
Loss	4–11	Mar 2014	Thailand F3, Nonthaburi	Futures	Hard	Chung Hyeon	Lewis Burton Marcus Willis	3–6, 5–7
Loss	4–12	Mar 2014	China F3, Yuxi	Futures	Hard	Lim Yong-kyu	Li Zhe Wu Di	4–6, 4–6
Loss	4–13	May 2014	Korea F2, Seoul	Futures	Hard	Chung Hong	Dane Propoggia Ruan Roelofse	0–6, 3–6
Win	5–13	Jun 2014	Korea F3, Changwon	Futures	Hard	Chung Hyeon	Cho Soong-jae Kim Dylan Seong-kwan	6–3, 6–3
Win	6–13	Jul 2014	China F9, Zhangjiagang	Futures	Hard	Cho Min-hyeok	Qiu Zhuoyang Te Rigele	6–3, 6–4
Loss	6–14	May 2015	Busan, Korea, Rep.	Challenger	Hard	Song Min-kyu	Sanchai Ratiwatana Sonchat Ratiwatana	6–7^(2–7), 6–3, [7–10]
Loss	6–15	May 2015	Korea F1, Daegu	Futures	Hard	Song Min-kyu	Hong Seong-chan Lee Hyung-taik	3–6, 3–6
Win	7–15	May 2015	Korea F2, Changwon	Futures	Hard	Song Min-kyu	Choi Jae-won Kim Hyun-joon	6–2, 5–7, [10–6]
Win	8–15	Aug 2015	Korea F5, Gimcheon	Futures	Hard	Noh Sang-woo	Gengo Kikuchi Shunrou Takeshima	6–3, 7–6^(7–3)
Loss	8–16	Sep 2015	Korea F6, Ansung	Futures	Clay (i)	Noh Sang-woo	Kwon Soon-woo Son Ji-hoon	7–6^(7–4), 3–6, [11–13]
Win	9–16	Jun 2016	Korea F2, Sangju	Futures	Hard	Song Min-kyu	Chung Yun-seong Lim Yong-kyu	6–4, 6–4
Win	10–16	Jul 2016	Korea F4, Gimcheon	Futures	Hard	Song Min-kyu	Shintaro Imai Takuto Niki	6–4, 6–4
Loss	10–17	Jul 2016	Korea F5, Gimcheon	Futures	Hard	Song Min-kyu	Kim Cheong-eui Noh Sang-woo	6–7^(5–7), 7–6^(7–4), [4–10]
Win	11–17	Sep 2016	Korea F8, Ansung	Futures	Clay (i)	Song Min-kyu	Katsuki Nagao Hiromasa Oku	6–4, 6–4
Win	12–17	May 2018	Vietnam F3, Thừa Thiên-Huế	Futures	Hard	Song Min-kyu	Kittirat Kerdlaphee Palaphoom Kovapitukted	6–1, 6–4
Win	13–17	Jun 2018	Korea F1, Sangju	Futures	Hard	Lim Yong-kyu	Alec Adamson Clément Larrière	4–6, 6–4, [10–5]
Win	14–17	Jun 2018	Korea F2, Gyeongsan	Futures	Hard	Lim Yong-kyu	John Paul Fruttero Takuto Niki	6–4, 6–1
Win	15–17	Jul 2018	China F9, Shenzhen	Futures	Hard	Song Min-kyu	Gao Xin Wang Aoran	3–6, 6–4, [10–4]
Win	16–17	Jul 2018	China F10, Shenzhen	Futures	Hard	Song Min-kyu	Chen Ti Rubin Statham	7–6^(7–3), 6–2
Win	17–17	Aug 2018	Gwangju, Korea, Rep.	Challenger	Hard	Song Min-kyu	Benjamin Lock Rubin Statham	5–7, 6–3, [10–5]
Loss	17–18	Aug 2018	Korea F5, Gimcheon	Futures	Hard	Son Ji-hoon	Chung Hong Noh Sang-woo	6–7^(4–7), 6–4, [8–10]
Win	18–18	Mar 2019	M15 Nishitokyo, Japan	World Tennis Tour	Hard	Song Min-kyu	Shintaro Imai Takuto Niki	4–6, 7–6^(7–4), [10–7]
Loss	18–19	Apr 2019	M15 Kashiwa, Japan	World Tennis Tour	Hard	Kim Cheong-Eui	Yusuke Takahashi Jumpei Yamasaki	1–6, 3–6
Loss	18–20	Apr 2019	M25 Matsuyama, Japan	World Tennis Tour	Hard	Kim Cheong-Eui	Shinji Hazawa Naoki Tajima	6–4, 1–6, [7–10]
Loss	18–21	May 2019	Gwangju, Korea, Rep.	Challenger	Hard	Song Min-kyu	Hsieh Cheng-peng Christopher Rungkat	3–6, 6–3, [6–10]
Win	19–21	May 2019	M25 Nonthaburi, Thailand	World Tennis Tour	Hard	Song Min-kyu	Sanchai Ratiwatana Sonchat Ratiwatana	7–6^(10–8), 6–1
Loss	19–22	Jul 2019	Nur-Sultan, Kazakhstan	Challenger	Hard	Chung Yun-seong	Andrey Golubev Aleksandr Nedovyesov	4–6, 4–6
Loss	19–23	Aug 2019	Chengdu, China, P.R.	Challenger	Hard	Song Min-kyu	Arjun Kadhe Saketh Myneni	3–6, 6–0, [6–10]
Win	20–23	Aug 2019	Yokkaichi, Japan	Challenger	Hard	Song Min-kyu	Gong Maoxin Zhang Ze	6–3, 3–6, [14–12]
Win	21–23	Aug 2019	Baotou, China, P.R.	Challenger	Clay (i)	Song Min-kyu	Teymuraz Gabashvili Sasikumar Mukund	7–6^(7–3), 6–2
Loss	21–24	Sep 2019	Jinan, China, P.R.	Challenger	Hard	Song Min-kyu	Matthew Ebden Divij Sharan	6–7^(4–7), 7–5, [3–10]
Loss	21–25	Oct 2019	Liuzhou, China, P.R.	Challenger	Hard	Song Min-kyu	Denis Istomin Mikhail Elgin	6–3, 4–6, [6–10]
Win	22–25	Nov 2019	M15 Nonthaburi, Thailand	World Tennis Tour	Hard	Chung Hong	Lee Jea-moon Song Min-kyu	1–6, 6–3, [10–7]
Win	23–25	Jun 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Hong Seong-chan	Matías Franco Descotte Filip Peliwo	6–3, 6–1
Win	24–25	Jun 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Hong Seong-chan	Timur Kiyamov Kelsey Stevenson	6–2, 6–4
Win	25–25	Jan 2022	M15 Antalya, Turkey	World Tennis Tour	Clay	Hong Seong-chan	Dragoș Nicolae Mădăraș Oleksandr Ovcharenko	6–3, 6–3
Win	26–25	Jan 2022	M15 Antalya, Turkey	World Tennis Tour	Clay	Hong Seong-chan	Sarp Ağabigün Alexandru Jecan	6–4, 6–4
Win	27–25	Mar 2022	M25 Bakersfield, United States	World Tennis Tour	Hard	Song Min-kyu	Daniel Cukierman Ruan Roelofse	6–2, 6–0
Win	28–25	Mar 2022	M25 Calabasas, United States	World Tennis Tour	Hard	Song Min-kyu	Charles Broom Henry Patten	6–3, 7–6^(7–4)
Loss	28–26	Apr 2022	M15 Chiang Rai, Thailand	World Tennis Tour	Hard	Song Min-kyu	Hong Seong-chan Kim Cheong-Eui	6–4, 6–7^(2–7), [8–10]
Win	29–26	Apr 2022	M15 Chiang Rai, Thailand	World Tennis Tour	Hard	Song Min-kyu	Shinji Hazawa Takuto Niki	6–1, 6–4
Win	30–26	Apr 2022	M15 Chiang Rai, Thailand	World Tennis Tour	Hard	Song Min-kyu	Bai Yan Kim Cheong-Eui	6–2, 6–4
Loss	30–27	Jun 2022	M25 Harmon, Guam	World Tennis Tour	Hard	Song Min-kyu	Toshihide Matsui Kaito Uesugi	3–6, 6–0, [7–10]
Win	31–27	Jul 2022	Nur-Sultan, Kazakhstan	Challenger	Hard	Song Min-kyu	Andrew Paulson David Poljak	6–2, 3–6, [10–6]
Loss	31–28	Aug 2022	Nonthaburi, Thailand	Challenger	Hard	Song Min-kyu	Evgeny Donskoy Alibek Kachmazov	3–6, 6–1, [7–10]
Loss	31–29	Oct 2022	Busan, South Korea	Challenger	Hard	Song Min-kyu	Marc Polmans Max Purcell	7–6^(7–5), 2–6, [10–12]
Win	32–29	Jan 2023	Nonthaburi, Thailand	Challenger	Hard	Song Min-kyu	Jan Choinski Stuart Parker	6–4, 6–4
Win	33–29	Jun 2023	Little Rock, USA	Challenger	Hard	Artem Sitak	Alexis Galarneau Nicolas Moreno de Alboran	6–4, 6–4
Win	34–29	Jul 2023	Pozoblanco, Spain	Challenger	Hard	Song Min-kyu	Luke Johnson Benjamin Lock	2–6, 6–4, [10–8]
Loss	34–30	Nov 2023	Sydney, Australia	Challenger	Hard	Ruben Gonzales	Ryan Seggerman Patrik Trhac	4–6, 4–6
Loss	34–31	Nov 2023	Kobe, Japan	Challenger	Hard	Andrew Harris	Evan King Reese Stalder	6–7^(3–7), 6–2, [7–10]
Loss	34–32	Mar 2024	M15 Tsukuba, Japan	World Tennis Tour	Hard	Ray Ho	Yusuke Kusuhara Shunsuke Nakagawa	5–7, 6–7 ^(4–7)
Loss	34–33	Apr 2024	M15 Kashiwa, Japan	World Tennis Tour	Hard	Ray Ho	Masamichi Imamura Takeru Yuzuki	6–4, 2–6, [8-10]
Win	35–33	Apr 2024	Busan, South Korea	Challenger	Hard	Ray Ho	Chung Yun-seong Hsu Yu-hsiou	6–2, 6–4
Loss	35–34	Apr 2024	Guangzhou, China	Challenger	Hard	Patrik Niklas-Salminen	Blake Ellis Tristan Schoolkate	2–6, 7–6^(7–4),[4–10]
Win	36–34	May 2024	Taipei, Taiwan	Challenger	Hard	Ray Ho	Toshihide Matsui Kaito Uesugi	6–2, 6–2
Loss	36–35	Oct 2024	Taipei, Taiwan	Challenger	Hard (i)	Joshua Paris	David Stevenson Marcus Willis	3–6, 3–6
Win	37–35	Mar 2025	M15 Hinode, Japan	World Tennis Tour	Hard	Shin San-hui	Koki Matsuda Taiyo Yamanaka	6–0, 6–4
Win	38–35	Mar 2025	M15 Nishitokyo, Japan	World Tennis Tour	Hard	Kaito Uesugi	Yusuke Kusuhara Shunsuke Nakagawa	6–3, 6–1
Loss	38–36	Aug 2025	Grodzisk Mazowiecki, Poland	Challenger	Hard	Takeru Yuzuki	Thijmen Loof Arthur Reymond	4–6, 7–6^(7–3),[14–16]
Win	39–36	Aug 2025	M15 Ma'anshan, China	World Tennis Tour	Hard (i)	Park Ui-sung	Cho Seong-woo Yang Zijiang	6–3, 4–6, [10–7]
Win	40–36	Jan 2026	Phan Thiết, Vietnam	Challenger	Hard	Park Ui-sung	Joshua Charlton Iván Marrero Curbelo	6–4, 6–3
Win	41–36	Feb 2026	Pune, India	Challenger	Hard	Patrik Niklas-Salminen	Pruchya Isaro Niki Kaliyanda Poonacha	6–4, 6–7^(1–7), [10–7]
Win	42–36	Mar 2026	Miyazaki, Japan	Challenger	Hard	Patrik Niklas-Salminen	Yuta Shimizu James Trotter	7–5, 6–3
Win	43–36	Apr 2026	Jiujiang, China	Challenger	Hard	Patrik Niklas-Salminen	Hsu Yu-hsiou Seita Watanabe	6–4, 6–4
Loss	43–37	May 2026	Wuxi, China	Challenger	Hard	Patrik Niklas-Salminen	Jean-Julien Rojer Theodore Winegar	3–6, 6–7^(6–8)
Win	44–37	Jun 2026	Cary, United States	Challenger	Hard	Patrik Niklas-Salminen	Finn Reynolds James Watt	5–7, 7–5, [10–8]
Win	45–37	Aug 2026	Zhangjiagang, China	Challenger	Hard	Park Ui-sung	Joshua Charlton Wang Aoran	6–3, 4–6, [13–11]

References

↑ "남지성 고향서 펄펄…부산오픈 복식 처음 품었다" [Nam Ji-sung shines in his hometown, winning his first doubles title at the Busan Open.]. kookje.co.kr (in Korean). 14 April 2024. Retrieved 6 November 2024.

External links

Nam JiSung at the Association of Tennis Professionals
Nam Jisung at World Tennis
Nam Jisung at the Davis Cup (archived former page)

[1] "남지성 고향서 펄펄…부산오픈 복식 처음 품었다" [Nam Ji-sung shines in his hometown, winning his first doubles title at the Busan Open.]. kookje.co.kr (in Korean). 14 April 2024. Retrieved 6 November 2024.

[1]

v t e Association of Tennis Professionals Top South Korean male singles tennis players
As of Aug 31, 2026
1. Soonwoo Kwon (150 ) 2. Sanhui Shin (528 ) 3. Gerard Campana Lee (541 ) 4. Hyeon Chung (567 ) 5. Dong Ju Kim (689 )
6. Uisung Park (763 ) 7. Jangjun Kim (835 ) 8. Hoyoung Roh (854 ) 9. Yun seong Chung (940 ) 10. Chanyeong Oh (1,006 )

Nam Ji-sung
Hangul	남지성
RR	Nam Jiseong
MR	Nam Chisŏng