Republic of Korea
02.01.97, 28 years
02.01.97, 28 years
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
USA
29.10.89, 35 years
29.10.89, 35 years
Ku Keon Kang vs. David Nguyen - head to head matches
| 26.09.16 | qual. | Ku Keon Kang | David Nguyen | 6-4, 6-1 | match details |  Vietnam F6 | Hard |
| 19.09.16 | q 2 | David Nguyen | Ku Keon Kang | 6-2, 7-5 | match details | Vietnam F5 | Hard |
Ku Keon Kang form & David Nguyen form
Ku Keon Kang - last matches
 M15 Andong - Hard | ||||
| 20.05.25 1st round | vs. Ji Sung Nam | 6-4, 4-6, 4-6 |  | match details |
| M15 Daegu - Hard | ||||
| 06.06.24 2nd round | vs. Edward Winter | 3-6, 2-6 | | match details |
| 05.06.24 1st round | vs. Kazuki Nishiwaki | 7-66, 6-2 |  | match details |
| 04.06.24 qual. | vs. Daiki Yoshimura | 2-6, 6-2, 10-4 | | match details |
| 03.06.24 q 2 | vs. Yan Cheng Chen | 6-1, 6-2 | | match details |
| 02.06.24 q 1 | vs. Hyung Tak Oh | 6-0, 6-2 | | match details |
 M15 Antalya - Clay | ||||
| 05.12.23 qual. | vs. Louroi Martinez | 6-1, 2-6, 6-10 | | match details |
| 04.12.23 q 2 | vs. Ivan Denisov | 6-4, 6-1 | | match details |
| 03.12.23 q 1 | vs. Simon Knezevic | 6-2, 6-2 | | match details |
| M15 Antalya - Clay | ||||
| 29.11.23 1st round | vs. Pol Amoros Ramos | 1-6, 4-6 | | match details |
| 28.11.23 qual. | vs. Dong Ju Kim | 6-2, 6-0 | | match details |
| 27.11.23 q 2 | vs. Gabriel Schenekenberg | 6-2, 6-1 | | match details |
| 26.11.23 q 1 | vs. Dmitrii Vasilev | 6-2, 6-4 | | match details |
| M25 Changwon - Hard | ||||
| 12.06.23 q 2 | vs. Young Seok Lee | - | | match details |
| 11.06.23 q 1 | vs. Jinseok Yoo | 7-60, 6-1 | | match details |
| M25 Daegu - Hard | ||||
| 07.06.23 1st round | vs. Jea Moon Lee | 4-6, 7-5, 4-6 | | match details |
| 05.06.23 qual. | vs. Jinseok Yoo | 6-1, 4-6, 10-7 | | match details |
| 05.06.23 q 2 | vs. Ki Bum Kim | 6-2, 6-2 | | match details |
| 04.06.23 q 1 | vs. Woong Choi | 6-1, 6-0 | | match details |
| M15 Daegu - Hard | ||||
| 28.08.22 q 1 | vs. Seokhyeon Chu | 2-1, - Ku Keon Kang - retired | | match details |
| M15 Changwon - Hard | ||||
| 25.08.22 2nd round | vs. Kazuki Nishiwaki | 3-6, 1-6 | | match details |
| 24.08.22 1st round | vs. Moerani Bouzige | 6-3, 6-3 | | match details |
| 22.08.22 q 2 | vs. Timothy Gray | 3-6, 6-1, 6-1, Timothy Gray - retired | | match details |
| 22.08.22 qual. | vs. Seon Yong Han | 6-1, 7-5 | | match details |
| 21.08.22 q 1 | vs. Hyowon Hwang | 6-0, 6-1 | | match details |
 M15 Monastir - Hard | ||||
| 12.12.21 q 1 | vs. Yamato Sueoka | 3-6, 2-6 | | match details |
 Thailand F5 - Hard | ||||
| 01.10.18 q 2 | vs. Chanchin Sookton-Eng | 4-6, 1-6 | | match details |
| 29.09.18 q 1 | vs. Yani Kimon Doumanis | 3-6, 6-1, 7-5 | | match details |
| Thailand F4 - Hard | ||||
| 24.09.18 1st round | vs. Dalwinder Singh | 4-6, 6-74 | | match details |
| 23.09.18 q 2 | vs. Alex Hunt | 6-1, 6-1 | | match details |
David Nguyen - last matches
 USA F26 - Hard | ||||
| 02.08.17 1st round | vs. Hunter Callahan | 6-4, 1-6, 6-74 | | match details |
| 31.07.17 q 2 | vs. Henry Britton | 6-1, 6-1 | | match details |
| 31.07.17 qual. | vs. Jonathan Binding | 7-5, 6-3 | | match details |
| USA F25 - Hard | ||||
| 24.07.17 q 1 | vs. Yates Johnson | 6-4, 7-63 | | match details |
| 24.07.17 q 2 | vs. Lukas Greif | 5-7, 3-6 | | match details |
| USA F24 - Hard | ||||
| 17.07.17 qual. | vs. Gabriel Friedrich | 7-62, 2-6, 1-6 | | match details |
| 17.07.17 q 1 | vs. Emmett Ward | 6-1, 6-3 | | match details |
| 17.07.17 q 2 | vs. Chukwudumebi Smarty | 6-0, 6-1 | | match details |
| Thailand F3 - Hard | ||||
| 21.06.17 2nd round | vs. Clement Larriere | 2-6, 3-6 | | match details |
| 20.06.17 1st round | vs. Natthasith Kunsuwan | 6-1, 6-3 | | match details |
| Thailand F2 - Hard | ||||
| 12.06.17 qual. | vs. Clement Larriere | 6-3, 4-6, 1-6 | | match details |
| 12.06.17 q 2 | vs. Ankit Chopra | 6-4, 6-2 | | match details |
 Singapore F3 - Hard | ||||
| 05.06.17 1st round | vs. Yuichi Ito | 6-71, 2-6 | | match details |
| Singapore F2 - Hard | ||||
| 29.05.17 q 1 | vs. Ethan Kai Xin Lye | 6-4, 6-0 | | match details |
| 29.05.17 qual. | vs. Ken Onoda | 3-6, 2-6 | | match details |
| Singapore F1 - Hard | ||||
| 25.05.17 1st round | vs. Dayne Kelly | 2-6, 4-6 | | match details |
| 22.05.17 qual. | vs. Aryan Goveas | 6-4, 6-3 | | match details |
| 22.05.17 q 1 | vs. Suraj R Prabodh | 6-4, 3-6, 6-3 | | match details |
| Tempe Challenger - Hard | ||||
| 12.02.17 q 2 | vs. Walter Trusendi | 3-6, 6-4, 4-6 | | match details |
| 11.02.17 q 1 | vs. Roy Smith | 6-2, 7-5 | | match details |
| Vietnam F8 - Hard | ||||
| 24.10.16 q 2 | vs. Roy Hobbs | - David Nguyen - walk over | | match details |
| Vietnam F7 - Hard | ||||
| 21.10.16 1/4 | vs. Sang-Woo Noh | 7-66, 0-6, 2-6 | | match details |
| 19.10.16 2nd round | vs. Kento Takeuchi | 7-64, 6-3 | | match details |
| 18.10.16 1st round | vs. Niki Kaliyanda Poonacha | 6-3, 2-6, 6-4 | | match details |
| 17.10.16 qual. | vs. Patrick Davidson | 7-5, 6-2 | | match details |
| 17.10.16 q 1 | vs. Yu Chang | 6-4, 6-2 | | match details |
| Vietnam F6 - Hard | ||||
| 26.09.16 qual. | vs. Ku Keon Kang | 4-6, 1-6 | | match details |
| 26.09.16 q 1 | vs. Yusei Fukuoka | 6-2, 6-0 | | match details |
| 26.09.16 q 2 | vs. Trung Tinh Le | 6-1, 6-1 | | match details |
| Vietnam F5 - Hard | ||||
| 22.09.16 1/4 | vs. Masato Shiga | 3-6, 4-6 | | match details |