Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| ITF Japan F5 | 2018/04/04 05:35 | Kawahashi, Yuta v Ryota Tanuma | 6-3,1-6,4-6 |
| ITF M15 Ipoh Perak | 2023/11/22 09:40 | Patrik Oplustil v Ryota Tanuma | 3-6,1-6 |
| ITF M15 Ipoh Perak | 2023/11/21 04:00 | Ke Hau Hung v Ryota Tanuma | 2-6,2-6 |
| ITF M15 Ipoh Perak | 2023/11/20 01:30 | Lee, Junhyun v Ryota Tanuma | 2-6,2-6 |
| ITF M25 Hua Hin | 2023/11/16 03:00 | Goncalo Oliveira v Ryota Tanuma | 6-4,6-2 |
| ITF M25 Hua Hin | 2023/11/14 03:00 | Credit Chaiyarin v Ryota Tanuma | 3-6,1-6 |
| UTR Pro Noda | 2023/10/22 00:00 | Sora Fukuda v Ryota Tanuma | 6-2,6-1 |
| UTR Pro Noda | 2023/10/21 00:00 | Taketo Takamisawa v Ryota Tanuma | 5-7,6-1,3-6 |
| UTR Pro Noda | 2023/10/20 00:00 | Hiiro Sakamoto v Ryota Tanuma | 0-6,2-6 |
| ITF M15 Ipoh Perak | 2023/11/22 01:30 | Kokoro Isomura v Kawahashi, Yuta | 3-6,6-1,0-6 |
| Kuching, Singles Main, M-ITF-MAS-03A | 2023/11/17 02:00 | Andre Ilagan v Kawahashi, Yuta | 6-3,6-4 |
| Kuching, Singles Main, M-ITF-MAS-03A | 2023/11/16 05:30 | Andrea Bacaloni v Kawahashi, Yuta | 6-3,6-7,1-6 |
| Kuching, Singles Main, M-ITF-MAS-03A | 2023/11/15 02:00 | Wishaya Trongcharoenchaikul v Kawahashi, Yuta | 2-6,1-6 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/15 04:50 | Hayato Matsuoka v Kawahashi, Yuta | 7-5,6-4 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/15 01:00 | Brymer, Gage v Kawahashi, Yuta | 0-6,5-7 |
| Sapporo, Singles Main, M-ITF-JPN-02A | 2023/09/13 00:55 | Woobin Shin v Kawahashi, Yuta | 3-6,5-7 |
| ITF - M15 Nakhon Si Thammarat | 2023/08/30 01:55 | Kawahashi, Yuta v Ishaque Eqbal | 6-1,6-3 |