Stadium: Court 4 Round: 26 Ground: Clay
| ITF M15 Karuizawa | 2023/05/31 01:00 | Jumpei Yamasaki v Seita Watanabe | 6-4,6-4 |
| ITF M15 Karuizawa | 2023/05/30 02:00 | Jumpei Yamasaki v Daiki Yoshimura | 6-2,6-2 |
| ITF M15 Heraklion | 2022/10/14 08:50 | Simone Roncalli v Jumpei Yamasaki | 6-4,6-3 |
| ITF M15 Heraklion | 2022/10/13 08:40 | Thantub Suksumrarn v Jumpei Yamasaki | 6-7,2-6 |
| ITF M15 Heraklion | 2022/10/12 11:40 | Gianluca Cadenasso v Jumpei Yamasaki | 6-7,3-6 |
| UTR Pro Tennis Series Miki | 2022/07/09 00:30 | Asahi Harazaki v Jumpei Yamasaki | 7-5,5-2 |
| UTR Pro Tennis Series Miki | 2022/07/08 00:30 | Yuichiro Inui v Jumpei Yamasaki | 3-6,6-3,4-6 |
| UTR Pro Tennis Series Miki | 2022/07/07 04:58 | Kento Tagashira v Jumpei Yamasaki | 4-6,3-6 |
| ITF M15 Antalya | 2023/04/26 09:15 | Takuya Kumasaka v Marlon Vankan | 4-6,0-6 |
| ITF M15 Antalya | 2023/04/18 09:10 | Takuya Kumasaka v Konstantin Zhzhenov | 3-6,6-4,7-10 |
| ITF M15 Antalya | 2023/04/17 10:20 | Takuya Kumasaka v Gino Romano | 6-3,6-1 |
| ITF M15 Antalya | 2023/04/16 07:00 | Takuya Kumasaka v Dragos N Cazacu | 6-1,6-1 |
| ITF M15 Antalya | 2023/04/12 07:00 | Juan Pablo Paz v Takuya Kumasaka | 6-1,6-1 |
| ITF M15 Antalya | 2023/04/11 12:45 | Jonathan Mridha v Takuya Kumasaka | 5-7,4-6 |
| ITF M15 Antalya | 2023/04/10 14:35 | Mert Naci Turker v Takuya Kumasaka | 2-6,5-7 |
| ITF M15 Antalya | 2023/04/09 06:30 | Felix Mischker v Takuya Kumasaka | 5-7,1-6 |