Country
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Birthdate
Height
Weight
Profi since
Play
Ranking's position
Points
Prize money
Republic of Korea
20.02.76, 49 years
21857 $
20.02.76, 49 years
21857 $
Jung-Woong Na vs. Seong-Yoon Chung - head to head matches
| 10.05.10 | q 1 | Jung-Woong Na | Seong-Yoon Chung | 6-1, 6-2 | match details |  Busan Challenger | Hard |
Jung-Woong Na form & Seong-Yoon Chung form
Jung-Woong Na - last matches
| M25 Anseong - Clay | ||||
| 18.06.23 q 1 | vs. Jae Myeong Lee | 4-6, 5-7 |  | match details |
| M25 Changwon - Hard | ||||
| 15.06.23 2nd round | vs. Yuki Mochizuki | 4-6, 3-6 | | match details |
| 14.06.23 1st round | vs. Jae Hwan Kim | 6-1, 6-1 |  | match details |
| 12.06.23 qual. | vs. Young Seok Lee | 6-4, 6-3 | | match details |
| 12.06.23 q 2 | vs. Young Seok Kim | 6-2, 6-2 | | match details |
| 11.06.23 q 1 | vs. Yongjun Shim | 6-2, 6-2 | | match details |
| M25 Daegu - Hard | ||||
| 07.06.23 1st round | vs. Jake Delaney | 7-65, 4-6, 2-6 | | match details |
| M15 Daegu - Hard | ||||
| 31.08.22 1st round | vs. Ryuki Matsuda | 6-72, 1-6 | | match details |
| M15 Changwon - Hard | ||||
| 21.08.22 q 1 | vs. Seon Yong Han | 6-3, 6-77, 7-10 | | match details |
 M25 Nonthaburi - Hard | ||||
| 05.02.20 1st round | vs. Matija Pecotic | 0-6, 2-6 | | match details |
| 04.02.20 qual. | vs. Cheong-Eui Kim | 5-7, 6-1, 10-7 | | match details |
| 03.02.20 q 2 | vs. Kittirat Kerdlaphee | 6-2, 6-1 | | match details |
| 02.02.20 q 1 | vs. Yuttana Charoenphon | 6-0, 6-1 | | match details |
| M25 Nonthaburi - Hard | ||||
| 30.01.20 2nd round | vs. Shuichi Sekiguchi | 1-6, 4-6 | | match details |
| 29.01.20 1st round | vs. Wishaya Trongcharoenchaikul | 7-64, 7-63 | | match details |
| 28.01.20 qual. | vs. Jirat Navasirisomboon | 2-6, 6-2, 10-3 | | match details |
| 27.01.20 q 2 | vs. Soichiro Moritani | 6-3, 6-3 | | match details |
| 26.01.20 q 1 | vs. Runhao Hua | 2-6, 7-62, 10-5 | | match details |
| M15 Changwon - Hard | ||||
| 18.10.19 1/4 | vs. Yuta Shimizu | 3-6, 5-7 | | match details |
| 17.10.19 2nd round | vs. Minjong Park | 1-6, 6-0, 6-4 | | match details |
| 16.10.19 1st round | vs. Young Seok Lee | 6-2, 6-1 | | match details |
 M15 Jakarta - Hard | ||||
| 13.08.19 1st round | vs. Seong-Gook Oh | 6-3, 5-7, 2-4, - Jung-Woong Na - retired | | match details |
| M15 Anseong - Clay | ||||
| 28.06.19 1/4 | vs. Cheong-Eui Kim | 2-6, 2-6 | | match details |
| 26.06.19 1st round | vs. Seungri Choi | 6-1, 6-1 | | match details |
| 26.06.19 2nd round | vs. Tae-Woo Lee | 6-3, 6-3 | | match details |
| M15 Gimcheon - Hard | ||||
| 19.06.19 2nd round | vs. Sanhui Shin | 7-5, 4-6, 0-3, - Jung-Woong Na - retired | | match details |
| 19.06.19 1st round | vs. Seong Taek Im | 6-0, 6-0 | | match details |
| M15 Gimcheon - Hard | ||||
| 13.06.19 2nd round | vs. Jean Thirouin | 2-6, 3-6 | | match details |
| 12.06.19 1st round | vs. Cheong-Eui Kim | 6-2, 6-2 | | match details |
| M15 Daegu - Hard | ||||
| 09.06.19 fin | vs. Seongchan Hong | 0-6, 3-6 | | match details |
Seong-Yoon Chung - last matches
| Korea F3 - Hard | ||||
| 20.05.13 qual. | vs. Hyeong Jin Cho | 6-0, 5-7, 6-1 | | match details |
| 20.05.13 1st round | vs. Young-Jun Kim | 1-4, - Seong-Yoon Chung - retired | | match details |
| 20.05.13 q 1 | vs. Gyu Sub Choi | 6-1, 6-0 | | match details |
| 20.05.13 q 2 | vs. Sung Jun Park | 6-3, 6-1 | | match details |
| Korea F1 - Hard | ||||
| 16.05.11 1st round | vs. Yong-Kyu Lim | 2-6, 2-6 | | match details |
| Busan Challenger - Hard | ||||
| 09.05.11 q 1 | vs. Zhe Li | 4-6, 1-6 | | match details |
 Kazakhstan F5 - I. hard | ||||
| 11.10.10 1st round | vs. Oleksiy Arovin | 6-0, 6-2 | | match details |
| 11.10.10 2nd round | vs. Jae-Won Choi | 1-6, 3-6 | | match details |
| Kazakhstan F4 - I. hard | ||||
| 04.10.10 2nd round | vs. Antoine Tassart | 4-6, 2-6 | | match details |
| 04.10.10 1st round | vs. Dmitri Marfinsky | 7-64, 6-1 | | match details |
 Japan F5 - Clay | ||||
| 07.06.10 1st round | vs. Yasuo Miyazaki | 4-6, 3-6 | | match details |
| Busan Challenger - Hard | ||||
| 10.05.10 q 1 | vs. Jung-Woong Na | 1-6, 2-6 | | match details |
| Chuncheon Challenger - Hard | ||||
| 02.11.09 q 1 | vs. Seung-Jae Lee | 6-4, 1-6, 1-6 | | match details |
| Thailand F5 - Hard | ||||
| 12.10.09 1st round | vs. Elbert Sie | 2-6, 4-6 | | match details |
| Thailand F4 - Hard | ||||
| 05.10.09 1st round | vs. Jose Statham | 2-6, 4-6 | | match details |
 India F9 - Hard | ||||
| 31.08.09 2nd round | vs. Karunuday Singh | 4-6, 1-6 | | match details |
| 31.08.09 1st round | vs. Kyle Brassington | 3-6, 6-4, Kyle Brassington - retired | | match details |
| India F8 - Hard | ||||
| 24.08.09 1st round | vs. Seung-Jae Lee | 2-6, 2-6 | | match details |
| India F7 - Hard | ||||
| 17.08.09 1st round | vs. Krishananth Balakrishnan | 7-5, 3-6, 6-0 | | match details |
| 17.08.09 2nd round | vs. Chris Eaton | 2-6, 5-7 | | match details |
| Korea F6 - Hard | ||||
| 20.07.09 2nd round | vs. Tatsuma Ito | 3-6, 3-6 | | match details |
| 20.07.09 1st round | vs. Sang-Woo Noh | 6-2, 6-0 | | match details |
| Korea F5 - Hard | ||||
| 13.07.09 1st round | vs. Dong-Whee Choi | 6-3, 4-6, 7-63 | | match details |
| 13.07.09 2nd round | vs. Ti Chen | 5-7, 6-4, 2-6 | | match details |
| Busan Challenger - Hard | ||||
| 11.05.09 q 1 | vs. Yves Allegro | 4-6, 7-64, 4-6 | | match details |
| Korea F1 - Hard | ||||
| 06.04.09 1st round | vs. Jae-Sung An | 5-7, 6-3, 4-6 | | match details |
 China F2 - Hard | ||||
| 12.01.09 1st round | vs. Hsin-Han Lee | 4-6, 3-6 | | match details |
| Thailand F6 - Hard | ||||
| 15.09.08 1st round | vs. Pongsiri Niroj | 7-63, 6-2 | | match details |
| 15.09.08 2nd round | vs. Peter Gojowczyk | 1-6, 0-6 | | match details |
| Thailand F5 - Hard | ||||
| 08.09.08 2nd round | vs. Nathan Thompson | 2-6, 0-6 | | match details |
