Stadium: KPI Park - Court 02 Ground: Hardcourt outdoor
Referee:
| UTR Pro Yokohama | 2025/02/05 04:30 | Kotaro Mochizuki v Yuta Kawahashi | 3-6,4-6 |
| UTR Pro Yokohama | 2025/02/04 01:00 | Takuto Terashima v Yuta Kawahashi | 1-6,1-6 |
| ITF M25 Chennai | 2025/01/14 04:30 | Yuta Kawahashi v Ryuki Matsuda | 2-6,2-6 |
| ITF M25 Bhopal | 2025/01/09 07:30 | Yuta Kawahashi v Maxim Zhukov | 6-4,5-7,1-6 |
| ITF M25 Bhopal | 2025/01/07 05:00 | Dominik Palan v Yuta Kawahashi | 1-6,2-6 |
| Challenger Yokkaichi | 2024/11/24 02:55 | Yuta Kawahashi v Ryuki Matsuda | 4-6,0-6 |
| ITF M15 Sharm El Sheikh | 2024/11/21 08:00 | Oliver Ojakaar v Yuta Kawahashi | 6-7,7-6,6-3 |
| ITF M15 Sharm El Sheikh | 2024/11/20 12:00 | Yuta Kawahashi v Erik Arutiunian | 6-4,6-3 |
| UTR Pro Yokohama | 2025/02/06 03:35 | Kotaro Mochizuki v Yoshinori Kobayashi | 5-7,3-6 |
| UTR Pro Yokohama | 2025/02/05 01:00 | Takuto Terashima v Yoshinori Kobayashi | 4-6,6-7 |
| UTR Pro Noda | 2025/01/18 04:15 | Ryotaro Matsumura v Yoshinori Kobayashi | 7-5,6-3 |
| UTR Pro Noda | 2025/01/17 03:55 | Koki Matsuda v Yoshinori Kobayashi | 6-7,1-6 |
| UTR Pro Noda | 2025/01/16 00:30 | Yuga Tashiro v Yoshinori Kobayashi | 2-6,0-6 |
| UTR Pro Noda | 2025/01/15 00:00 | Andras Necz v Yoshinori Kobayashi | 3-6,4-6 |
| UTR Pro Noda | 2025/01/13 03:25 | Seiya Nakanishi v Yoshinori Kobayashi | 3-6,2-6 |
| UTR Pro Kawaguchi | 2024/06/29 09:00 | Yoshinori Kobayashi v Kosuke Nakanishi | 1-6,2-6 |