Stadium: Indoor B Round: 25 Ground: Hardcourt outdoor
| Challenger Shanghai | 2023/09/04 04:30 | Yan Bai v Yusuke Takahashi | 6-2,6-4 |
| Challenger Zhangjiagang | 2023/09/01 05:55 | Mikalai Haliak v Yusuke Takahashi | 6-4,6-4 |
| Challenger Zhangjiagang | 2023/08/31 04:40 | Stefanos Sakellaridis v Yusuke Takahashi | 3-6,1-6 |
| Challenger Zhangjiagang | 2023/08/29 12:20 | Jie Cui v Yusuke Takahashi | 2-6,2-6 |
| Challenger Zhangjiagang | 2023/08/28 09:15 | Yusuke Takahashi v Yan Bai | 2-6,1-6 |
| Challenger Zhangjiagang | 2023/08/27 05:00 | Yusuke Takahashi v Jianhao Sheng | 6-1,6-1 |
| ITF M25 Astana | 2023/08/06 05:00 | Yusuke Takahashi v Renta Tokuda | 0-6,4-6 |
| ITF M25 Astana | 2023/08/05 07:45 | Yusuke Takahashi v Shuichi Sekiguchi | 6-4,6-4 |
| ITF M15 Monastir | 2023/08/23 12:35 | Kazuma Kawachi v Mohammad Alkotop | 3-6,1-6 |
| ITF M15 Monastir | 2023/08/15 13:05 | Younes Lalami Laaroussi v Kazuma Kawachi | 6-1,6-2 |
| ITF M25 Herzlia | 2023/08/08 07:50 | Orel Kimhi v Kazuma Kawachi | 7-6,6-2 |
| ITF M15 Raanana | 2023/08/01 12:20 | Kazuma Kawachi v Itamar Tapiro | 6-3,2-6,5-7 |
| ITF M15 Nakhon Si Thammarat | 2023/07/12 02:00 | Kazuma Kawachi v Amir Milushev | 2-6,6-3,6-7 |
| ITF M15 Nakhon Si Thammarat | 2023/07/05 07:50 | Kokoro Isomura v Kazuma Kawachi | 6-4,6-3 |
| ITF M15 Jakarta | 2023/06/29 02:00 | Yuta Kawahashi v Kazuma Kawachi | 6-2,7-6 |
| ITF M15 Jakarta | 2023/06/28 02:00 | Yuichiro Inui v Kazuma Kawachi | 6-3,6-7,5-7 |