Name: Ji Sung Nam
Country: Republic of Korea
Birthdate: 15.08.93, 30 years
ATP ranking: 674
TOP ranking's position: 236 (12.08.19, 189 points)
Points: 45
Prize money: 283927 $
Matches total: 497
Win: 282
%: 56.74 %
Country: Republic of Korea
Birthdate: 15.08.93, 30 years
ATP ranking: 674
TOP ranking's position: 236 (12.08.19, 189 points)
Points: 45
Prize money: 283927 $
Matches total: 497
Win: 282
%: 56.74 %
| year | summary | Hard | Clay | I. hard | Carpet | Grass | Acrylic |
| 2024 | 2/4 | 2/3 | 0/0 | 0/0 | 0/0 | 0/1 | 0/0 |
| 2023 | 15/20 | 13/15 | 2/4 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2022 | 26/19 | 24/13 | 2/4 | 0/2 | 0/0 | 0/0 | 0/0 |
| 2021 | 4/7 | 2/6 | 0/0 | 1/1 | 0/0 | 1/0 | 0/0 |
| 2020 | 3/6 | 1/2 | 0/1 | 2/3 | 0/0 | 0/0 | 0/0 |
| 2019 | 41/24 | 34/21 | 1/1 | 3/1 | 3/1 | 0/0 | 0/0 |
| 2018 | 40/13 | 37/10 | 3/2 | 0/1 | 0/0 | 0/0 | 0/0 |
| 2017 | 7/2 | 7/2 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2016 | 23/9 | 14/7 | 9/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2015 | 19/17 | 17/15 | 2/2 | 0/0 | 0/0 | 0/0 | 0/0 |
| 2014 | 36/23 | 31/19 | 2/3 | 0/0 | 3/1 | 0/0 | 0/0 |
| 2013 | 30/24 | 27/21 | 0/1 | 1/1 | 2/1 | 0/0 | 0/0 |
| 2012 | 27/25 | 20/20 | 5/0 | 2/4 | 0/0 | 0/1 | 0/0 |
| 2011 | 5/15 | 2/10 | 0/3 | 1/1 | 2/1 | 0/0 | 0/0 |
| 2010 | 3/6 | 3/5 | 0/0 | 0/0 | 0/1 | 0/0 | 0/0 |
| 2009 | 1/1 | 1/1 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 |
| TOTAL | 282/215 | 235/170 | 26/23 | 10/15 | 10/5 | 1/2 | 0/0 |
| perc. % | 56.74 % | 58.02 % | 53.06 % | 40 % | 66.67 % | 33.33 % | 0 % |
Ji Sung Nam / scheduled / last
| no matches found |
Ji Sung Nam form / surface: Clay
Ji Sung Nam / surface: Clay
| 08.08.23 | qual. | Orlando Luz | Ji Sung Nam | 4-6, 6-4, 6-4 |  | match details |  Meerbusch Challenger | Clay |
| 07.08.23 | q 1 | Ji Sung Nam | Aaron James Williams | 6-4, 6-74, 6-1 |  | match details | ||
| 18.06.23 | q 1 | Frazier Rengifo | Ji Sung Nam | 6-4, 6-2 | | match details |  Cali Challenger | Clay |
| 09.04.23 | q 1 | Viktor Durasovic | Ji Sung Nam | 4-6, 7-63, 7-69 | | match details |  Madrid Challenger | Clay |
| 03.04.23 | qual. | Edas Butvilas | Ji Sung Nam | 2-6, 6-3, 6-1 | | match details | Murcia Challenger | Clay |
| 02.04.23 | q 1 | Ji Sung Nam | Daniel Rincon | 6-3, 6-2 | | match details | ||
| 08.02.22 | 1st round | Mircea-Alexandru Jecan | Ji Sung Nam | 7-65, 6-2 | | match details |  M15 Antalya | Clay |
| 04.02.22 | 1st round | Evgenii Tiurnev | Ji Sung Nam | 6-1, 6-2 | | match details | M15 Antalya | Clay |
| 21.01.22 | 1/4 | Davide Galoppini | Ji Sung Nam | 7-65, 6-3 | | match details | M15 Antalya | Clay |
| 20.01.22 | 1st round | Ji Sung Nam | Grigoriy Lomakin | 6-1, 6-2 | | match details | ||
| 20.01.22 | 2nd round | Ji Sung Nam | Maciej Rajski | 7-62, 1-6, 10-8 | | match details | ||
| 13.01.22 | 1st round | Jorge Martinez Martinez | Ji Sung Nam | 6-78, 6-2, 13-11 | | match details | M15 Antalya | Clay |
| 06.03.20 | Gianluca Mager | Ji Sung Nam | 6-3, 7-5 | | match details |  Davis Cup | Clay | |
| 29.08.19 | 3rd round | Yan Bai | Ji Sung Nam | 6-3, 4-6, 7-5 | | match details |  Baotou Challenger | Clay |
| 27.08.19 | 2nd round | Ji Sung Nam | Arjun Kadhe | 6-3, 6-3 | | match details | ||
| 06.02.18 | 1st round | Ji Hoon Son | Ji Sung Nam | 4-6, 7-63, 6-1 | | match details | Turkey F5 | Clay |
| 05.02.18 | qual. | Ji Sung Nam | Yuichiro Inui | 7-5, 6-0 | | match details | ||
| 04.02.18 | q 2 | Ji Sung Nam | Ki Su Jung | 7-66, 6-3 | | match details | ||
| 29.01.18 | qual. | Dan Dowson | Ji Sung Nam | 5-7, 7-64, 6-4 | | match details | Turkey F4 | Clay |
| 28.01.18 | q 2 | Ji Sung Nam | Sorin Andrei Iordache | 6-2, 6-4 | | match details | ||
| 10.09.16 | fin | Yong-Kyu Lim | Ji Sung Nam | 6-0, 6-3 | | match details |  Korea F8 | Clay |
| 09.09.16 | 1/2 | Ji Sung Nam | Min-Kyu Song | 2-6, 6-0, 6-2 | | match details | ||
| 08.09.16 | 1/4 | Ji Sung Nam | Dylan Seong-Kwan Kim | 6-4, 6-0 | | match details | ||
| 07.09.16 | 2nd round | Ji Sung Nam | Seungri Choi | 6-3, 6-4 | | match details | ||
| 06.09.16 | 1st round | Ji Sung Nam | Jong-Min Choi | 6-2, 6-2 | | match details | ||
| 30.08.16 | 1st round | Makoto Ochi | Ji Sung Nam | 6-1, 6-4 | | match details | Korea F7 | Clay |
| 27.08.16 | fin | Ji Sung Nam | Makoto Ochi | 5-7, 6-1, 6-1 | | match details | Korea F6 | Clay |
| 26.08.16 | 1/2 | Ji Sung Nam | Young Seok Kim | 6-2, 6-3 | | match details | ||
| 25.08.16 | 1/4 | Ji Sung Nam | Ju-Hae Moon | 6-3, 6-2 | | match details | ||
| 24.08.16 | 2nd round | Ji Sung Nam | Sanhui Shin | 7-63, 7-5 | | match details | ||
| 22.08.16 | 1st round | Ji Sung Nam | Hyun-Woo Nam | 1-6, 7-64, 3-0, Hyun-Woo Nam - retired | | match details | ||
| 07.09.15 | 1st round | Hyun-Woo Nam | Ji Sung Nam | 1-2, Ji Sung Nam - retired | | match details | Korea F7 | Clay |
| 31.08.15 | 1/4 | Makoto Ochi | Ji Sung Nam | 6-72, 6-4, 6-3 | | match details | Korea F6 | Clay |
| 31.08.15 | 2nd round | Ji Sung Nam | Yong-Bum Seo | 6-3, 4-6, 6-1 | | match details | ||
| 31.08.15 | 1st round | Ji Sung Nam | Sang-Yuop Kim | 6-2, 6-2 | | match details | ||
| 27.01.14 | 1st round | Arsenije Zlatanovic | Ji Sung Nam | 6-2, 6-4 | | match details |  Egypt F3 | Clay |
| 20.01.14 | 2nd round | Ricardo Rodriguez-Pace | Ji Sung Nam | 6-1, 6-1 | | match details | Egypt F2 | Clay |
| 20.01.14 | 1st round | Ji Sung Nam | Yong-Bum Seo | 2-1, Yong-Bum Seo - retired | | match details | ||
| 13.01.14 | 2nd round | Gianluca Naso | Ji Sung Nam | 6-4, 6-4 | | match details | Egypt F1 | Clay |
| 13.01.14 | 1st round | Ji Sung Nam | Dariusz Lipka | 6-1, 6-4 | | match details | ||
| 30.04.13 | 1st round | Ze Zhang | Ji Sung Nam | 6-3, 6-4 | | match details | Anning Challenger | Clay |
| 11.06.12 | fin | Ji Sung Nam | Adam El Mihdawy | 6-4, 6-4 | | match details |  Japan F5 | Clay |
| 11.06.12 | 2nd round | Ji Sung Nam | Yasutaka Uchiyama | 7-5, 7-65 | | match details | ||
| 11.06.12 | 1/4 | Ji Sung Nam | Bumpei Sato | 6-2, 6-0 | | match details | ||
| 11.06.12 | 1/2 | Ji Sung Nam | Takuto Niki | 7-5, 6-2 | | match details | ||
| 11.06.12 | 1st round | Ji Sung Nam | Yuuya Kibi | 6-4, 7-5 | | match details | ||
| 14.11.11 | 1st round | Nikolaus Moser | Ji Sung Nam | 6-1, 6-2 | | match details | .png){kind=small} Chinese Taipei | Clay |
| 04.04.11 | 1st round | Chris Letcher | Ji Sung Nam | 6-4, 6-2 | | match details |  Australia F4 | Clay |
| 28.03.11 | 1st round | Isaac Frost | Ji Sung Nam | 3-6, 6-1, 6-3 | | match details | Australia F3 | Clay |
