Stadium: Center Court Round: 27 Ground: Hardcourt outdoor
| ITF - M15 Karuizawa | 2023/06/01 02:40 | Jumpei Yamasaki v Takuya Kumasaka | 6-3,6-2 |
| ITF - M15 Yanagawa | 2023/12/28 00:55 | Jumpei Yamasaki v Yamato Sueoka | 7-5,6-1 |
| ITF - M15 Yanagawa | 2023/12/26 03:25 | Kazuki Nishiwaki v Jumpei Yamasaki | 3-6,3-6 |
| ITF - M15 Yanagawa | 2023/12/22 04:50 | Jumpei Yamasaki v Hikaru Shiraishi | 3-6,4-6 |
| ITF - M15 Yanagawa | 2023/12/21 08:45 | Koki Matsuda v Jumpei Yamasaki | 1-6,6-1,3-6 |
| ITF - M15 Yanagawa | 2023/12/21 00:30 | Shu Muto v Jumpei Yamasaki | 0-6,2-6 |
| ITF - M25 Gold Coast | 2023/11/30 01:15 | Kody Pearson v Jumpei Yamasaki | 7-6,7-6 |
| ITF - M25 Gold Coast | 2023/11/28 01:50 | Jumpei Yamasaki v Nam Hoang Ly | 2-6,6-4,6-3 |
| ITF - M25 Brisbane | 2023/11/22 04:35 | Makoto Ochi v Jumpei Yamasaki | 7-6,6-3 |
| ITF - M15 Yanagawa | 2023/12/27 00:30 | Takuya Kumasaka v Kazuma Kawachi | 6-4,6-2 |
| ITF - M15 Yanagawa | 2023/12/22 02:45 | Takuya Kumasaka v Taisei Ichikawa | 4-6,4-6 |
| ITF - M15 Yanagawa | 2023/12/21 02:50 | Takuya Kumasaka v Yuta Tomida | 7-6,6-0 |
| ITF - M15 Ipoh Perak | 2023/11/26 01:30 | Alexey Zakharov v Takuya Kumasaka | 6-0,6-3 |
| ITF - M15 Ipoh Perak | 2023/11/25 01:20 | Takuya Kumasaka v Jeamoon Lee | 7-6,6-0 |
| ITF - M15 Ipoh Perak | 2023/11/24 02:00 | Takuya Kumasaka v Hayato Matsuoka | 7-6,6-0 |
| ITF - M15 Ipoh Perak | 2023/11/23 04:55 | Hikaru Shiraishi v Takuya Kumasaka | 6-7,4-6 |
| ITF - M15 Ipoh Perak | 2023/11/22 02:30 | Yeongseok Jeong v Takuya Kumasaka | 6-3,6-7,3-6 |