Stadium: Court 11 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Kashiwa | 2019/04/01 00:00 | Daisuke Sumizawa v Kazuki Nishiwaki | 6-2,2-6,8-10 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/28 02:00 | Dzhavakian, Yurii v Daisuke Sumizawa | 2-6,6-4,6-2 |
| ITF M25 Anseong | 2023/06/23 03:25 | Daisuke Sumizawa v Sanhui Shin | 3-6,4-6 |
| ITF M25 Anseong | 2023/06/22 04:00 | Daisuke Sumizawa v Takuya Kumasaka | 7-5,7-6 |
| ITF M25 Anseong | 2023/06/21 04:10 | Daisuke Sumizawa v Ko Suzuki | 7-5,6-3 |
| ITF M25 Nakhon Si Thammarat | 2023/06/15 03:25 | Orel Kimhi v Daisuke Sumizawa | 6-1,6-3 |
| ITF - M15 Nakhon Si Thammarat | 2023/06/07 03:30 | Daisuke Sumizawa v Maximus Jones | 1-6,2-6 |
| ITF - M15 Karuizawa | 2023/06/01 00:30 | Sora Fukuda v Daisuke Sumizawa | 6-3,6-4 |
| ITF - M15 Karuizawa | 2023/05/30 07:35 | Taketo Takamisawa v Daisuke Sumizawa | 2-6,4-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/29 04:30 | S D Prajwal Dev v Kazuki Nishiwaki | 7-6,6-0 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2023/06/28 05:30 | Kazuki Nishiwaki v Akay, Cihan | 6-4,6-3 |
| ITF M25 Jakarta | 2023/04/25 02:00 | Kazuki Nishiwaki v Tsung-Hao Huang | 3-6,5-7 |
| ITF M25 Jakarta | 2023/04/17 06:25 | Kazuki Nishiwaki v Kawahashi, Yuta | 4-6,4-6 |
| ITF M25 Jakarta | 2023/04/13 04:25 | Yuta Shimizu v Kazuki Nishiwaki | 6-2,6-4 |
| ITF M25 Jakarta | 2023/04/12 01:55 | Barki, Justin v Kazuki Nishiwaki | 6-7,2-6 |
| ITF M25 Jakarta | 2023/04/11 04:00 | Kazuki Nishiwaki v Yan Bai | 2-6,7-6,10-6 |
| ITF M25 Jakarta | 2023/04/10 07:35 | Kazuki Nishiwaki v Ha Minh Duc Vu | 6-1,6-4 |