Stadium: Court 13 Round: 25 Ground: Hardcourt outdoor
| ATP Hong Kong | 2023/12/31 04:00 | Taro Daniel v Tsz Fu Wong | 6-0,6-3 |
| ITF M15 Yanagawa | 2023/12/26 03:25 | Kazuki Nishiwaki v Jumpei Yamasaki | 3-6,3-6 |
| Challenger Yokkaichi | 2023/11/26 04:20 | Calum Puttergill v Kazuki Nishiwaki | 7-5,6-2 |
| Challenger Matsuyama | 2023/11/05 04:55 | Kazuki Nishiwaki v Rio Noguchi | 2-6,5-7 |
| ITF M25 Dharwad | 2023/10/20 04:30 | Kazuki Nishiwaki v Digvijay Pratap Singh | 4-6,7-6,2-6 |
| ITF M25 Dharwad | 2023/10/19 04:35 | Kazuki Nishiwaki v Madhwin Kamath | 6-4,6-4 |
| ITF M25 Dharwad | 2023/10/18 09:25 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-2,7-5 |
| ITF M25 Takasaki | 2023/09/22 01:00 | Kazuki Nishiwaki v Collin Altamirano | 3-6,1-6 |
| ITF M25 Takasaki | 2023/09/21 01:50 | Kazuki Nishiwaki v Leo Vithoontien | 5-7,6-4,6-4 |