| ITF M25 Takasaki | 2023/09/21 02:00 | Brymer, Gage v Tanuma, Ryota | 6-1,6-4 |
| ITF M25 Takasaki | 2023/09/20 02:40 | Tanuma, Ryota v Mitsuki Wei Kang Leong | 6-4,6-4 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/13 01:00 | Sekiguchi, Shuichi v Tanuma, Ryota | 7-6,6-1 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/07 00:50 | Kokoro Isomura v Tanuma, Ryota | 6-4,6-3 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/05 02:00 | Tanuma, Ryota v Yunseok Jang | 6-4,7-5 |
| Challenger Matsuyama | 2022/11/06 01:00 | Tanuma, Ryota v Naoki Nakagawa | 3-6,4-6 |
| Challenger Yokohama | 2022/11/01 05:55 | Damir Dzumhur v Tanuma, Ryota | 6-3,6-1 |
| Challenger Yokohama | 2022/10/31 01:30 | Kawakami, Rimpei v Tanuma, Ryota | 6-7,6-4,4-6 |