Nam Ji-sung explained

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.

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

Challenger and Futures/World Tennis Tour finals

Singles: 16 (5–11)

Legend (singles) ATP Challenger Tour (0–2) ITF Futures/World Tennis Tour (5–9)

Titles by surface Hard (3–10) Clay (2–1) Grass (0–0) Carpet (0–0)

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

Doubles: 70 (36 titles, 34 runners-up)

Legend (doubles) ATP Challenger Tour (9–13) ITF Futures Tour (27–21)

Titles by surface Hard (32–32) Clay (4–2) Grass (0–0) Carpet (0–0)

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