Ground: Hardcourt outdoor
| ITF M25 Kashiwa | 2023/04/05 03:15 | Ryotaro Taguchi v Daisuke Sumizawa | 6-7,7-6,6-7 |
| ITF M25 Tianjin | 2024/07/18 01:55 | Yunseong Chung v Ryotaro Taguchi | 6-3,7-6 |
| ITF M25 Tianjin | 2024/07/17 02:00 | Linghao Zhang v Ryotaro Taguchi | 3-6,2-6 |
| ITF M25 Tianjin | 2024/07/13 09:00 | Yu Hsiou Hsu v Ryotaro Taguchi | 6-3,6-4 |
| ITF M25 Tianjin | 2024/07/12 09:00 | Grigoriy Lomakin v Ryotaro Taguchi | 6-7,6-7 |
| ITF M25 Tianjin | 2024/07/11 01:50 | Ryotaro Taguchi v Moerani Bouzige | 6-3,1-6,6-4 |
| ITF M25 Tianjin | 2024/07/10 05:45 | Jimmy Yang v Ryotaro Taguchi | 4-6,4-6 |
| ITF M25 Changwon | 2024/06/19 02:50 | Ryotaro Taguchi v Dong Ju Kim | 6-3,4-6,4-6 |
| ITF M15 Hong Kong | 2024/06/14 06:00 | Evgeny Tyurnev v Ryotaro Taguchi | 7-6,6-4 |
| ITF M15 Nakhon Si Thammarat | 2024/07/17 02:30 | James Watt v Daisuke Sumizawa | 7-6,6-2 |
| ITF M15 Nakhon Si Thammarat | 2024/07/11 03:00 | Daisuke Sumizawa v Jesse Delaney | 3-6,6-3,6-7 |
| ITF M15 Nakhon Si Thammarat | 2024/07/10 02:00 | Daisuke Sumizawa v Kazuma Kawachi | 7-6,6-7,6-2 |
| ITF M15 Nakhon Si Thammarat | 2024/07/02 01:50 | Isaac Becroft v Daisuke Sumizawa | 6-1,6-4 |
| ITF M25 Changwon | 2024/06/18 02:25 | Jae Hwan Kim v Daisuke Sumizawa | 6-1,7-6 |
| ITF M15 Hong Kong | 2024/06/13 02:00 | S D Prajwal Dev v Daisuke Sumizawa | 6-3,6-4 |
| ITF M15 Hong Kong | 2024/06/12 02:00 | Daisuke Sumizawa v Linghao Zhang | 6-1,6-2 |
| ITF M15 Kursumlijska Banja | 2024/05/14 09:55 | Daisuke Sumizawa v Keisuke Saitoh | 4-6,7-5,3-6 |