Stadium: Court 5 Round: 27 Ground: Clay
| UTR Pro Tennis Series Miki | 2022/07/07 02:00 | Yamato Sueoka v Kazuki Nishiwaki | 1-6,2-6 |
| ITF M25 Tainan | 2023/08/24 05:20 | Henrik Wiersholm v Kazuki Nishiwaki | 3-6,6-3,1-6 |
| ITF M25 Tainan | 2023/08/22 04:15 | Tzu Li Chang v Kazuki Nishiwaki | 1-6,3-6 |
| ITF M25 Tainan | 2023/08/19 02:00 | Makoto Ochi v Kazuki Nishiwaki | 6-2,7-6 |
| ITF M25 Tainan | 2023/08/17 02:00 | Cheng-Yu Yu v Kazuki Nishiwaki | 5-7,3-6 |
| ITF M25 Tainan | 2023/08/16 04:40 | Kazuki Nishiwaki v Digvijay Pratap Singh | 6-7,6-4,6-3 |
| ITF M15 Caloundra | 2023/08/03 03:10 | Isaac Becroft v Kazuki Nishiwaki | 7-6,6-3 |
| ITF M15 Caloundra | 2023/08/01 03:40 | Kazuki Nishiwaki v Ryotaro Matsumura | 6-3,3-6,6-3 |
| ITF M15 Caloundra | 2023/07/25 04:05 | Daisuke Sumizawa v Kazuki Nishiwaki | 6-1,6-2 |
| ITF M25 Tainan | 2023/08/24 02:00 | Yamato Sueoka v Jake Delaney | 7-5,3-6,6-4 |
| ITF M25 Tainan | 2023/08/21 02:00 | Yamato Sueoka v Takeru Yuzuki | 6-4,6-2 |
| ITF M25 Tainan | 2023/08/13 02:00 | Yamato Sueoka v Cheng-Yu Yu | 4-6,4-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/20 04:00 | Yamato Sueoka v Jeamoon Lee | 1-6,6-3,3-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/19 05:55 | Seon Yong Han v Yamato Sueoka | 3-6,6-3,3-6 |
| ITF M15 Nakhon Si Thammarat | 2023/07/10 04:10 | Yamato Sueoka v Patorn Hanchaikul | 3-6,5-7 |
| ITF M15 Nakhon Si Thammarat Qual | 2023/07/09 06:25 | Yamato Sueoka v Parth Aggarwal | 6-1,6-3 |
| ITF M15 Nakhon Si Thammarat | 2023/07/02 05:45 | Yamato Sueoka v Siwanat Auytayakul | 6-7,3-6 |