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
14.10.93, 31 years
14.10.93, 31 years
Austin Krajicek vs. Ki Su Jung - head to head matches
| 06.05.17 | q 1 | Austin Krajicek | Ki Su Jung | 6-1, 6-2 | match details |  Seoul Challenger | Hard |
Austin Krajicek form & Ki Su Jung form
Austin Krajicek - last matches
 Los Cabos - Hard | ||||
| 28.07.18 q 1 | vs. Luis Patino | 4-6, 4-6 |  | match details |
 Newport - Grass | ||||
| 15.07.18 q 1 | vs. Bernard Tomic | 6-73, 4-6 | | match details |
| Winnetka Challenger - Hard | ||||
| 10.07.18 1st round | vs. Collin Altamirano | 5-7, 5-7 | | match details |
 Nottingham Challenger - Grass | ||||
| 10.06.18 q 2 | vs. Frederik Nielsen | 3-6, 6-71 | | match details |
| 09.06.18 q 1 | vs. Tiran Sanghera | 6-3, 6-2 |  | match details |
| Puerto Vallarta - Hard | ||||
| 30.04.18 1st round | vs. Edan Leshem | 3-6, 4-6 | | match details |
| Mexico City - Clay | ||||
| 10.04.18 1st round | vs. Juan Ignacio Londero | 5-7, 1-6 | | match details |
| 09.04.18 qual. | vs. Gonzalo Escobar | 7-5, 2-6, 7-66 | | match details |
| 08.04.18 q 2 | vs. Alexios Halebian | 6-4, 6-0 | | match details |
| 07.04.18 q 1 | vs. Shalva Dzhanashia | 6-3, 6-3 | | match details |
| San Luis - Clay | ||||
| 29.03.18 2nd round | vs. Jose Hernandez-Fernandez | 0-6, 2-6 | | match details |
| 28.03.18 1st round | vs. Paolo Lorenzi | 6-72, 6-1, 6-3 | | match details |
| Irving Challenger - Hard | ||||
| 14.03.18 1st round | vs. Mikhail Kukushkin | 7-63, 4-6, 5-7 | | match details |
 Canada F2 - I. hard | ||||
| 07.03.18 1st round | vs. Deiton Baughman | 1-6, 6-3, 4-6 | | match details |
| Morelos Challenger - Hard | ||||
| 20.02.18 1st round | vs. Roberto Cid Subervi | 5-7, 0-1, - Austin Krajicek - retired | | match details |
| Dallas Challenger - I. hard | ||||
| 31.01.18 2nd round | vs. Miomir Kecmanovic | 6-74, 7-65, 6-74 | | match details |
| 29.01.18 1st round | vs. Filip Peliwo | 6-3, 6-3 | | match details |
| Newport Beach - Hard | ||||
| 20.01.18 q 1 | vs. Luke Bambridge | 7-66, 5-7, 5-7 | | match details |
| USA F2 - Hard | ||||
| 12.01.18 1/4 | vs. Emilio Gomez | 3-6, 6-78 | | match details |
| 11.01.18 2nd round | vs. Or Ram-Harel | 6-2, 6-4 | | match details |
| 10.01.18 1st round | vs. Danny Thomas | 6-4, 3-6, 6-4 | | match details |
| USA F40 - I. hard | ||||
| 06.12.17 1st round | vs. Alex Knaff | 6-4, 1-6, 4-6 | | match details |
| USA F39 - I. hard | ||||
| 30.11.17 1/4 | vs. Trevor Allen Johnson | 3-6, 0-6 | | match details |
| 29.11.17 2nd round | vs. Patrick Kypson | 6-4, 6-4 | | match details |
| 28.11.17 1st round | vs. Juan Manuel Benitez Chavarriaga | 2-6, 6-4, 7-63 | | match details |
 Hua Hin - Hard | ||||
| 23.11.17 2nd round | vs. Go Soeda | 6-4, 1-6, 2-6 | | match details |
| 20.11.17 1st round | vs. Jirat Navasirisomboon | 6-1, 6-2 | | match details |
 Toyota Challenger - Carpet | ||||
| 14.11.17 1st round | vs. Soon-Woo Kwon | 6-71, 4-6 | | match details |
| Kobe Challenger - I. hard | ||||
| 07.11.17 1st round | vs. Calvin Hemery | 6-77, 2-6 | | match details |
 Shenzhen Challenger - Hard | ||||
| 03.11.17 1/4 | vs. Mikhail Youzhny | 1-6, 3-6 | | match details |
Ki Su Jung - last matches
| Korea F5 - Hard | ||||
| 20.08.18 qual. | vs. Ren Nakamura | 2-6, 0-6 | | match details |
| 19.08.18 q 2 | vs. Jaeyeon Yoo | 6-2, 6-2 | | match details |
| 18.08.18 q 1 | vs. Jeong Heon Lee | 6-3, 6-1 | | match details |
| Korea F4 - Hard | ||||
| 13.08.18 1st round | vs. Geun Jun Kim | 2-6, 1-6 | | match details |
| 13.08.18 qual. | vs. Jin Sung Han | 6-4, 6-3 | | match details |
| 12.08.18 q 2 | vs. Jae-Min Seol | 6-3, 6-2 | | match details |
| 11.08.18 q 1 | vs. Hyeon Il Jung | 6-3, 6-4 | | match details |
| Korea F3 - Hard | ||||
| 16.06.18 q 1 | vs. Oh-Hee Kwon | 0-6, 1-6 | | match details |
| Korea F2 - Hard | ||||
| 11.06.18 1st round | vs. Ju-Hae Moon | 2-6, 4-6 | | match details |
| Korea F1 - Hard | ||||
| 03.06.18 qual. | vs. Loic Ratsaratany | 6-74, 3-6 | | match details |
| 03.06.18 q 2 | vs. Dylan Seong-Kwan Kim | 6-1, Dylan Seong-Kwan Kim - retired | | match details |
| 02.06.18 q 1 | vs. Hyun Bin Jin | 6-1, 6-1 | | match details |
 Turkey F5 - Clay | ||||
| 04.02.18 q 2 | vs. Ji Sung Nam | 6-76, 3-6 | | match details |
| 03.02.18 q 1 | vs. Lukas Artner | 6-1, 6-1 | | match details |
| Turkey F4 - Clay | ||||
| 27.01.18 q 1 | vs. Thomas Macleod | 2-2, - Ki Su Jung - retired | | match details |
| Turkey F3 - Hard | ||||
| 23.01.18 qual. | vs. Jung-Woong Na | 1-6, 2-6 | | match details |
| 21.01.18 q 2 | vs. Patrik Rikl | Patrik Rikl - walk over | | match details |
| 20.01.18 q 1 | vs. Anze Loviscek | 5-0, Anze Loviscek - retired | | match details |
| Turkey F2 - Hard | ||||
| 16.01.18 q 2 | vs. Calin Manda | 7-65, 3-6, 6-74 | | match details |
| 15.01.18 q 1 | vs. Artem Kukharenko | 7-5, 6-0 | | match details |
| Korea F5 - Clay | ||||
| 28.06.17 1st round | vs. Daniel Yoo | 0-6, 1-6 | | match details |
| Korea F4 - Hard | ||||
| 20.06.17 1st round | vs. Min-Kyu Song | 3-6, 0-6 | | match details |
| Korea F3 - Hard | ||||
| 13.06.17 1st round | vs. Jung-Woong Na | 4-6, 1-6 | | match details |
| Korea F2 - Hard | ||||
| 05.06.17 q 1 | vs. Ivan Kalinin | 6-75, 2-6 | | match details |
| Korea F1 - Hard | ||||
| 29.05.17 q 1 | vs. Jaeyoung Park | 5-7, 3-6 | | match details |
| Busan Challenger - Hard | ||||
| 13.05.17 q 1 | vs. Joe Salisbury | 4-6, 6-4, 3-6 | | match details |
| Seoul Challenger - Hard | ||||
| 06.05.17 q 1 | vs. Austin Krajicek | 1-6, 2-6 | | match details |
| Gimcheon Challenger - Hard | ||||
| 30.04.17 q 2 | vs. Takuto Niki | 1-6, 2-6 | | match details |
| 29.04.17 q 1 | vs. Min Hyun Lee | 6-4, 6-3 | | match details |
| Korea F5 - Hard | ||||
| 11.07.16 q 1 | vs. Ji Sung Nam | 4-6, 1-6 | | match details |