Republic of Korea
04.11.81, 43 years
174 cm
68 kg
Right-handed
04.11.81, 43 years
174 cm
68 kg
Right-handed
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
Sung-Kyun Kang vs. Yuichi Ito - head to head matches
| 17.10.11 | q 2 | Sung-Kyun Kang | Yuichi Ito | 1-6, 6-1, 7-5 | match details |  Seoul Challenger | Hard |
Sung-Kyun Kang form & Yuichi Ito form
Sung-Kyun Kang - last matches
| Seoul Challenger - Hard | ||||
| 22.10.12 q 1 | vs. Brydan Klein | 1-6, 6-3, 4-6 |  | match details |
 Japan F5 - Clay | ||||
| 11.06.12 1st round | vs. Hiroyasu Ehara | 1-6, 2-6 | | match details |
| Korea F2 - Hard | ||||
| 21.05.12 1st round | vs. Chu-Huan Yi | 6-2, 2-6, 7-5 |  | match details |
| 21.05.12 2nd round | vs. Samuel Groth | 5-7, 1-6 | | match details |
| Seoul Challenger - Hard | ||||
| 17.10.11 q 2 | vs. Yuichi Ito | 1-6, 6-1, 7-5 | | match details |
| 17.10.11 qual. | vs. Toshihide Matsui | 3-6, 4-6 | | match details |
| 17.10.11 q 1 | vs. Jae Won Yun | 6-1, 6-1 | | match details |
| Japan F7 - Carpet | ||||
| 21.06.10 1st round | vs. Yusuke Watanuki | 6-1, 3-6, 6-0 | | match details |
| 21.06.10 2nd round | vs. Yaoki Ishii | 7-65, 6-1 | | match details |
| 21.06.10 1/4 | vs. Hiroki Kondo | 6-74, 5-7 | | match details |
| Busan Challenger - Hard | ||||
| 10.05.10 q 2 | vs. Jae-Sung An | 4-6, 3-6 | | match details |
| 10.05.10 q 1 | vs. Junn Mitsuhashi | 6-2, 7-63 | | match details |
| Korea F3 - Hard | ||||
| 19.04.10 1st round | vs. Zhe Li | 4-6, 7-5, 5-7 | | match details |
| Korea F1 - Hard | ||||
| 05.04.10 1st round | vs. Suk-Young Jeong | 3-6, 2-6 | | match details |
| Korea F6 - Hard | ||||
| 20.07.09 1st round | vs. Hsin-Han Lee | 6-74, 5-7 | | match details |
| Korea F5 - Hard | ||||
| 13.07.09 1st round | vs. Tsung-Hua Yang | 6-0, 2-6, 2-6 | | match details |
 Malaysia F3 - Hard | ||||
| 29.06.09 1st round | vs. Tsung-Hua Yang | 4-6, 3-6 | | match details |
| Malaysia F2 - Hard | ||||
| 22.06.09 1st round | vs. Zhe Li | 6-4, 6-3 | | match details |
| 22.06.09 2nd round | vs. Tsung-Hua Yang | 4-6, 1-6 | | match details |
| Malaysia F1 - Hard | ||||
| 15.06.09 1st round | vs. David Rice | 6-4, 5-7, 2-6 | | match details |
| Korean Rep. - Hard | ||||
| 27.04.09 2nd round | vs. Zhe Li | 3-6, 6-75 | | match details |
| 27.04.09 1st round | vs. Oh-Hee Kwon | 6-3, 6-1 | | match details |
| Korea F3 - Hard | ||||
| 20.04.09 2nd round | vs. Daniel King-Turner | 2-6, 6-2, 5-7 | | match details |
| 20.04.09 1st round | vs. Zhe Li | 7-5, 6-0 | | match details |
| Korea F1 - Hard | ||||
| 06.04.09 2nd round | vs. Yong-Kyu Lim | 0-6, 6-3, 2-6 | | match details |
| 06.04.09 1st round | vs. Philippe De Bonnevie | 7-5, 6-3 | | match details |
 Kazakhstan F2 - Clay | ||||
| 07.07.08 fin | vs. Adam Vejmelka | 3-6, 3-6 | | match details |
| 07.07.08 1/2 | vs. Ilya Belyaev | 7-62, 6-3 | | match details |
| 07.07.08 1st round | vs. Ivan Nedelko | 6-3, 6-2 | | match details |
| 07.07.08 2nd round | vs. Vitali Reshetnikov | 7-5, 3-6, 6-2 | | match details |
Yuichi Ito - last matches
 M25 Qujing - I. hard | ||||
| 08.07.19 1st round | vs. Kento Takeuchi | 0-1, - Yuichi Ito - retired | | match details |
| M25 Kunshan - Hard | ||||
| 03.07.19 1st round | vs. Michael Zhu | 6-74, 5-7 | | match details |
| M15 Akishima - Carpet | ||||
| 11.06.19 1st round | vs. Kazuma Kawachi | 2-6, 1-6 | | match details |
| M15 Tsukuba - Hard | ||||
| 25.03.19 qual. | vs. Ryuki Matsuda | 0-6, 1-6 | | match details |
| 24.03.19 q 1 | vs. Motoharu Ishigure | 6-4, 6-4 | | match details |
| M15 Kofu - Hard | ||||
| 17.03.19 q 1 | vs. Tamaki Yamao | 2-6, 3-6 | | match details |
| M15 Nishi - Hard | ||||
| 10.03.19 q 1 | vs. Hikaru Shiraishi | 1-6, 6-72 | | match details |
| Kobe Challenger - I. hard | ||||
| 10.11.18 q 1 | vs. Issei Okamura | 4-6, 7-62, 3-6 | | match details |
 Thailand F4 - Hard | ||||
| 25.09.18 2nd round | vs. Sidharth Rawat | 4-6, 4-6 | | match details |
| 25.09.18 1st round | vs. Daisuke Sumizawa | 6-2, 6-3 | | match details |
| Thailand F3 - Hard | ||||
| 05.09.18 2nd round | vs. Takashi Saito | 2-6, 6-4, 3-6 | | match details |
| 04.09.18 1st round | vs. Masayoshi Ono | 7-64, 6-3 | | match details |
| Thailand F2 - Hard | ||||
| 28.08.18 1st round | vs. Thanapet Chanta | 4-6, 4-6 | | match details |
| Korea F5 - Hard | ||||
| 21.08.18 1st round | vs. Chan-Yeong Oh | 7-63, 6-74, 3-6 | | match details |
| Malaysia F3 - Hard | ||||
| 16.07.18 1st round | vs. Lance-Pierre Du Toit | 2-6, 6-4, 3-6 | | match details |
| Malaysia F2 - Hard | ||||
| 09.07.18 1st round | vs. Michail Pervolarakis | 2-6, 2-6 | | match details |
 Guam F1 - Hard | ||||
| 23.06.18 fin | vs. Yuta Shimizu | 3-6, 2-6 | | match details |
| 22.06.18 1/2 | vs. Thomas Fancutt | 7-64, 6-4 | | match details |
| 21.06.18 1/4 | vs. Niklas Johansson | 7-64, 6-1 | | match details |
| 20.06.18 2nd round | vs. David Barclay | 6-2, 6-2 | | match details |
| 19.06.18 1st round | vs. Daisuke Sumizawa | 6-3, 4-6, 6-3 | | match details |
 Vietnam F2 - Hard | ||||
| 07.05.18 1st round | vs. Nitin Kumar Sinha | 6-4, 2-6, 0-2, - Yuichi Ito - retired | | match details |
| Vietnam F1 - Hard | ||||
| 01.05.18 1st round | vs. Aaron Addison | 6-72, 6-3, 1-5, - Yuichi Ito - retired | | match details |
| Japan F6 - Hard | ||||
| 08.04.18 qual. | vs. Hajime Nakashima | 1-6, 1-6 | | match details |
| 08.04.18 q 2 | vs. Koki Takada | 7-5, 6-2 | | match details |
| Japan F5 - Hard | ||||
| 31.03.18 q 1 | vs. Ko Suzuki | 6-74, 2-6 | | match details |
| Japan F3 - Hard | ||||
| 18.03.18 qual. | vs. Shunrou Takeshima | 6-74, 6-77 | | match details |
| 17.03.18 q 2 | vs. Keisuke Numajiri | 6-1, 2-0, Keisuke Numajiri - retired | | match details |
| Japan F2 - Hard | ||||
| 12.03.18 qual. | vs. Shinta Fujii | 1-6, 6-3, 4-6 | | match details |
| 11.03.18 q 2 | vs. Ryota Kishi | 7-63, 7-5 | | match details |