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
04.11.81, 43 years
174 cm
68 kg
Right-handed
04.11.81, 43 years
174 cm
68 kg
Right-handed
Samuel Groth vs. Sung-Kyun Kang - head to head matches
| 21.05.12 | 2nd round | Samuel Groth | Sung-Kyun Kang | 7-5, 6-1 | match details |  Korea F2 | Hard |
Samuel Groth form & Sung-Kyun Kang form
Samuel Groth - last matches
 Melbourne - Hard | ||||
| 10.01.18 q 1 | vs. Taylor Harry Fritz | 4-6, 6-3, 6-73 |  | match details |
| Brisbane - Hard | ||||
| 30.12.17 q 1 | vs. Yannick Hanfmann | 4-6, 6-77 | | match details |
 Las Vegas - Hard | ||||
| 19.10.17 2nd round | vs. Jan Choinski | 1-2, - Samuel Groth - retired | | match details |
| 17.10.17 1st round | vs. Mikael Torpegaard | 6-3, 6-4 |  | match details |
| Fairfield Challenger - Hard | ||||
| 10.10.17 1st round | vs. Noah Rubin | 4-6, 6-3, 5-7 | | match details |
 Monterrey Challenger - Hard | ||||
| 05.10.17 2nd round | vs. Dominik Koepfer | 3-6, 0-1, - Samuel Groth - retired | | match details |
| 04.10.17 1st round | vs. Manuel Sanchez | 7-5, 7-5 | | match details |
| Tiburon Challenger - Hard | ||||
| 25.09.17 1st round | vs. Mitchell Krueger | 4-6, 5-7 | | match details |
| New York - Hard | ||||
| 23.08.17 q 1 | vs. Mirza Basic | 4-6, 6-74 | | match details |
| Aptos Challenger - Hard | ||||
| 12.08.17 1/2 | vs. Alexander Bublik | 6-72, 3-6 | | match details |
| 11.08.17 1/4 | vs. Akira Santillan | 7-5, 7-66 | | match details |
| 09.08.17 2nd round | vs. Jason Jung | 4-6, 6-3, 6-0 | | match details |
| 07.08.17 1st round | vs. Bjorn Fratangelo | 6-75, 6-4, 6-3 | | match details |
| Newport - Grass | ||||
| 19.07.17 2nd round | vs. John Isner | 2-6, 4-6 | | match details |
| 18.07.17 1st round | vs. Austin Krajicek | 6-73, 7-62, 6-3 | | match details |
| 17.07.17 qual. | vs. William Blumberg | 6-2, 6-4 | | match details |
| 16.07.17 q 1 | vs. Alessandro Bega | 6-2, 6-3 | | match details |
 London - Grass | ||||
| 26.06.17 q 1 | vs. Simone Bolelli | 6-73, 6-2, 9-11 | | match details |
| Ilkley Challenger - Grass | ||||
| 24.06.17 1/4 | vs. Bjorn Fratangelo | 7-65, 6-4 | | match details |
| 24.06.17 1/2 | vs. Alex Bolt | 4-6, 4-6 | | match details |
| 22.06.17 2nd round | vs. Marcus Willis | 5-7, 7-62, 6-3 | | match details |
| 20.06.17 1st round | vs. Darian King | 7-5, 6-4 | | match details |
| Nottingham Challenger - Grass | ||||
| 17.06.17 1/2 | vs. Thomas Fabbiano | 4-6, 3-6 | | match details |
| 16.06.17 1/4 | vs. John-Patrick Smith | 7-66, 6-2 | | match details |
| 15.06.17 2nd round | vs. Brydan Klein | 6-3, 6-4 | | match details |
| 13.06.17 1st round | vs. Peter Polansky | 6-3, 7-68 | | match details |
| 12.06.17 qual. | vs. Yuuya Kibi | 6-1, 6-0 | | match details |
| 11.06.17 q 2 | vs. Finn Bass | 6-1, 6-2 | | match details |
| 10.06.17 q 1 | vs. Jonny O'Mara | 6-3, 6-4 | | match details |
 Paris - Clay | ||||
| 23.05.17 q 1 | vs. Filip Krajinovic | 6-3, 6-73, 2-6 | | match details |
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 1st round | vs. Oh-Hee Kwon | 6-3, 6-1 | | match details |
| 27.04.09 2nd round | vs. Zhe Li | 3-6, 6-75 | | 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 |