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
16.05.79, 46 years
16.05.79, 46 years
Mark Nielsen vs. Seung-Hoon Oh - H2H matches
| 02.05.05 | 2nd round | Mark Nielsen | Seung-Hoon Oh | 7-5, 7-5 | match details |  Korea F1 | Hard |
Mark Nielsen form & Seung-Hoon Oh form
Mark Nielsen - last matches
 Japan F5 - Carpet | ||||
| 16.06.08 1st round | vs. Fumiaki Kita | 7-5, 6-4 |  | match details |
| 16.06.08 2nd round | vs. Young-Jun Kim | 4-6, 6-74 |  | match details |
| Japan F4 - Clay | ||||
| 09.06.08 1st round | vs. Hyung-Tae Kwon | 6-3, 6-4 | | match details |
| 09.06.08 1/2 | vs. Stephen Bass | 4-6, 7-64, 2-6 | | match details |
| 09.06.08 2nd round | vs. Yong-Kyu Lim | 6-3, 6-4 | | match details |
| 09.06.08 1/4 | vs. Tatsuma Ito | 6-1, 6-4 | | match details |
 Davis Cup - Hard | ||||
| 12.04.08 | vs. Ali Ismaeel | 6-4, 6-2 | | match details |
 New Zealand - Hard | ||||
| 27.02.06 2nd round | vs. Daniel King-Turner | 0-1, - Mark Nielsen - retired | | match details |
| 27.02.06 1st round | vs. Raphael Durek | 6-2, 6-3 | | match details |
 Australia F2 - Hard | ||||
| 20.02.06 1/4 | vs. Ti Chen | 6-4, 6-2 | | match details |
| 20.02.06 1st round | vs. Timo Nieminen | 7-62, 6-4 | | match details |
| 20.02.06 2nd round | vs. Daniel King-Turner | 4-6, 6-3, 7-64 | | match details |
| 20.02.06 1/2 | vs. Satoshi Iwabuchi | 2-6, 5-7 | | match details |
| Davis Cup - I. hard | ||||
| 13.02.06 Rubber 1 | vs. Karim Alayly | 6-2, 6-1, 6-2 | | match details |
| Australia F1 - Hard | ||||
| 13.02.06 1st round | vs. Scott Lipsky | 6-4, 3-6, 4-6 | | match details |
| Melbourne - Hard | ||||
| 12.01.06 q 1 | vs. Lars Burgsmuller | 1-6, 4-6 | | match details |
| Auckland - Hard | ||||
| 09.01.06 1st round | vs. Mario Ancic | 1-6, 2-6 | | match details |
| Caloundra - Hard | ||||
| 01.11.05 1st round | vs. Jan Masik | 4-6, 3-6 | | match details |
| Australia F8 - Hard | ||||
| 10.10.05 1/2 | vs. Ti Chen | 6-0, 6-2 | | match details |
| 10.10.05 1st round | vs. Jose Statham | 6-1, 6-0 | | match details |
| 10.10.05 2nd round | vs. Myles Blake | 6-4, 6-1 | | match details |
| 10.10.05 fin | vs. Robert Smeets | 5-7, 3-6 | | match details |
| 10.10.05 1/4 | vs. Alun Jones | 6-1, 7-65 | | match details |
| Australia F7 - Hard | ||||
| 03.10.05 1st round | vs. Myles Blake | 6-0, 6-3 | | match details |
| 03.10.05 2nd round | vs. Scott Doerner | 6-73, 4-6 | | match details |
| Davis Cup - I. hard | ||||
| 19.09.05 Rubber 1 | vs. Kyu-Tae Im | 0-6, 4-6, 6-4, 6-0, 5-2, Kyu-Tae Im - retired | | match details |
| 19.09.05 | vs. Hyung-Taik Lee | 2-6, 6-78, 3-6 | | match details |
| Japan F10 - Hard | ||||
| 05.09.05 1/4 | vs. Tetsuya Chaen | 6-3, 6-3 | | match details |
| 05.09.05 fin | vs. Tasuku Iwami | 6-3, 7-66 | | match details |
| 05.09.05 1st round | vs. Hiroyasu Sato | 6-73, 7-5, 6-3 | | match details |
Seung-Hoon Oh - last matches
 USA F22 - Hard | ||||
| 08.09.08 1st round | vs. Daniel Andrus | 2-6, 6-2, 4-6 | | match details |
| Korea F3 - Hard | ||||
| 12.05.08 1st round | vs. Hyun-Woo Nam | 3-6, 3-6 | | match details |
 Indonesia F3 - Hard | ||||
| 13.08.07 1st round | vs. Hiroki Kondo | 4-6, 2-6 | | match details |
| Indonesia F - Hard | ||||
| 06.08.07 2nd round | vs. Hiroki Kondo | 2-6, 7-5, 2-6 | | match details |
| 06.08.07 1st round | vs. Chris Mayanto | 7-63, 6-3 | | match details |
| Indonesia F1 - Hard | ||||
| 30.07.07 1st round | vs. Oh-Hee Kwon | 2-6, 5-7 | | match details |
| Busan - Hard | ||||
| 28.05.07 q 1 | vs. Moon-Kyun Kang | 6-3, 6-2 | | match details |
| 28.05.07 q 2 | vs. Amir Weintraub | 6-3, 3-6, 3-6 | | match details |
| Busan - Hard | ||||
| 06.11.06 q 1 | vs. Dong-Whee Choi | 7-65, 3-6, 1-6 | | match details |
| Seoul - Hard | ||||
| 30.10.06 q 1 | vs. Dekel Valtzer | 7-68, 3-6, 2-6 | | match details |
 Thailand F5 - Hard | ||||
| 14.08.06 2nd round | vs. Peerakit Siributwong | 6-3, 4-6, 6-1 | | match details |
| 14.08.06 1/4 | vs. Nick Lindahl | 2-6, 5-7 | | match details |
| 14.08.06 1st round | vs. Shao-Xuan Zeng | 7-5, 6-3 | | match details |
| Thailand F4 - Hard | ||||
| 07.08.06 2nd round | vs. Shao-Xuan Zeng | 2-6, 0-6 | | match details |
| 07.08.06 1st round | vs. Kai-Lung Chang | 6-1, 6-3 | | match details |
| Korea F1 - Hard | ||||
| 13.03.06 2nd round | vs. Karan Rastogi | 6-1, 7-5 | | match details |
| 13.03.06 1st round | vs. Sung-Kyun Kang | 2-6, 6-2, 6-3 | | match details |
| 13.03.06 1/4 | vs. Woong-Sun Jun | 2-6, 4-6 | | match details |
| Busan - Hard | ||||
| 31.10.05 q 1 | vs. Sonchat Ratiwatana | 7-5, 7-63 | | match details |
| 31.10.05 q 2 | vs. Luka Gregorc | 7-5, 6-3 | | match details |
| 31.10.05 qual. | vs. Frank Moser | 6-75, 7-5, 4-6 | | match details |
| Busan - Hard | ||||
| 23.05.05 q 1 | vs. Go Soeda | 1-6, 6-77 | | match details |
| Korea F2 - Hard | ||||
| 09.05.05 1st round | vs. Luka Gregorc | 6-3, 4-6, 3-6 | | match details |
| Korea F1 - Hard | ||||
| 02.05.05 2nd round | vs. Mark Nielsen | 5-7, 5-7 | | match details |
| 02.05.05 1st round | vs. Ross Hutchins | 7-5, 6-2 | | match details |
| Indonesia F1 - Hard | ||||
| 02.08.04 1st round | vs. Tai-Wei Liu | 3-6, 2-6 | | match details |
| Busan - Hard | ||||
| 29.03.04 q 1 | vs. Byung-Kook Kang | 6-3, 4-6, 6-4 | | match details |
| 29.03.04 q 2 | vs. Toshihide Matsui | 3-6, 7-5, 2-6 | | match details |
| Busan - Hard | ||||
| 09.06.03 1st round | vs. Takahiro Terachi | 4-6, 0-6 | | match details |
| Seoul - Hard | ||||
| 21.10.02 q 1 | vs. Fred Hemmes | 4-6, 0-6 | | match details |
