Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| Challenger Toyota Qual | 2017/11/11 04:10 | Kazuki Nishiwaki v Toshihide Matsui | 3-6,4-6 |
| Challenger - Noumea | 2023/12/31 02:30 | Rubin Statham v Toshihide Matsui | 6-2,7-6 |
| Challenger - Guangzhou | 2023/09/11 06:00 | Qian Sun v Toshihide Matsui | 6-7,6-0,7-6 |
| Challenger - Guangzhou | 2023/09/10 09:45 | Toshihide Matsui v Jiayang Dong | 7-5,6-0 |
| Challenger - Zhangjiagang | 2023/08/27 03:30 | Toshihide Matsui v Ray Ho | 0-6,2-6 |
| Challenger - Manama | 2023/02/12 12:00 | Toshihide Matsui v Andrey Chepelev | 3-6,2-6 |
| Challenger - Noumea | 2023/01/02 04:15 | Toshihide Matsui v Riccardo Bonadio | 3-6,3-6 |
| Challenger - Yokkaichi | 2022/11/20 04:35 | Toshihide Matsui v James Trotter | 4-6,4-6 |
| Challenger - Busan | 2022/10/16 02:50 | Maximilian Neuchrist v Toshihide Matsui | 6-3,6-2 |
| ITF - M15 Tsukuba | 2024/03/27 00:50 | Yi Zhou v Kazuki Nishiwaki | 4-6,6-4,6-3 |
| ITF - M15 Nishi-Tokyo | 2024/03/20 06:30 | Leo Vithoontien v Kazuki Nishiwaki | 6-2,6-3 |
| ITF - M15 Torello | 2024/03/07 11:40 | Kazuki Nishiwaki v Ergi Kirkin | 1-6,1-6 |
| ITF - M15 Torello | 2024/03/06 12:40 | Kazuki Nishiwaki v Manel L Juncadella | 6-4,6-2 |
| ITF - M15 Villena | 2024/02/27 12:00 | Fausto Tabacco v Kazuki Nishiwaki | 6-3,6-1 |
| 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 |