Stadium: Court 15 Round: 26 Ground: Hardcourt outdoor
| ITF M15 Changwon | 2022/08/24 07:50 | Moerani Bouzige v Ku Keon Kang | 3-6,3-6 |
| ITF M15 Changwon | 2022/08/22 07:00 | Ku Keon Kang v Seon Yong Han | 6-1,7-5 |
| ITF M15 Monastir | 2021/12/12 11:00 | Yamato Sueoka v Ku Keon Kang | 6-3,6-2 |
| ITF Thailand F5 | 2018/09/30 02:30 | Chanchai Sookton-Eng v Ku Keon Kang | 6-4,6-1 |
| ITF Thailand F5 | 2018/09/29 06:00 | Yani Kimon Doumanis v Ku Keon Kang | 6-3,1-6,5-7 |
| ITF Thailand F4 | 2018/09/25 02:30 | Ku Keon Kang v Dalwinder Singh | 4-6,6-7 |
| ITF Thailand F4 | 2018/09/24 02:30 | Liran Chen v Ku Keon Kang | 3-6,3-6 |
| ITF Thailand F4 | 2018/09/23 04:00 | Alex Hunt v Ku Keon Kang | 1-6,1-6 |
| ITF M15 Changwon | 2022/08/23 00:50 | Ko Suzuki v Kazuki Nishiwaki | 4-6,3-6 |
| ITF M15 Jakarta | 2022/08/18 02:00 | S D Prajwal Dev v Kazuki Nishiwaki | 6-3,6-4 |
| ITF M15 Jakarta | 2022/08/16 05:50 | Kazuki Nishiwaki v Masamichi Imamura | 6-3,3-6,6-1 |
| ITF M15 Jakarta | 2022/08/09 05:05 | Uisung Park v Kazuki Nishiwaki | 4-6,6-2,6-3 |
| UTR Pro Tennis Series Miki | 2022/07/16 00:30 | Shunya Maruyama v Kazuki Nishiwaki | 7-6,5-4 |
| UTR Pro Tennis Series Miki | 2022/07/15 02:00 | Toru Horie v Kazuki Nishiwaki | 3-6,3-5 |
| UTR Pro Tennis Series Miki | 2022/07/11 02:00 | Kazuki Nishiwaki v Daisuke Inagawa | 6-0,6-3 |
| UTR Pro Tennis Series Miki | 2022/07/10 00:30 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-1,5-4 |