Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Changwon | 2022/08/26 01:00 | Kazuki Nishiwaki v Jeamoon Lee | 3-6,3-6 |
| ITF M15 Changwon | 2022/08/25 03:00 | Ku Keon Kang v Kazuki Nishiwaki | 3-6,1-6 |
| 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 |
| ITF M15 Daegu | 2022/08/29 10:30 | Homin Kwag v Suk Ann | 3-6,6-3,10-12 |
| ITF M15 Changwon | 2022/08/22 05:30 | Geni Inoue v Suk Ann | 6-2,6-0 |
| ITF M15 Changwon | 2022/08/22 00:30 | Homin Kwag v Suk Ann | 6-1,1-6,8-10 |
| ITF M15 Changwon | 2022/08/21 01:00 | Dong Hwan Kim v Suk Ann | 3-6,0-6 |
| ITF M15 Anseong | 2022/08/15 00:30 | Suk Ann v Ryoma Matsushita | 6-4,3-6,6-10 |
| ITF Korea F2 Qual | 2017/06/03 03:00 | Seoung Hun Lee v Suk Ann | 6-2,6-3 |