Ground: Hardcourt outdoor
| UTR Pro Kawaguchi | 2024/08/18 00:00 | Seiya Nakanishi v Kazuki Sugimoto | 3-6,2-6 |
| UTR Pro Yokohama | 2025/02/01 02:35 | Daiki Yoshimura v Kazuki Sugimoto | 7-5,6-7,6-1 |
| UTR Pro Yokohama | 2025/01/31 01:00 | Issei Okamura v Kazuki Sugimoto | 6-4,6-3 |
| UTR Pro Yokohama | 2025/01/30 04:20 | Natsuki Yamamoto v Kazuki Sugimoto | 5-7,2-6 |
| UTR Pro Yokohama | 2025/01/28 03:00 | Jumpei Yamasaki v Kazuki Sugimoto | 7-6,6-3 |
| UTR Pro Yokohama | 2025/01/27 01:00 | Kazuki Sugimoto v Daiki Sato | 6-0,6-0 |
| UTR Pro Noda | 2025/01/12 03:50 | Kazuki Sugimoto v Daiki Yoshimura | 7-5,6-0 |
| UTR Pro Noda | 2025/01/10 01:35 | Kazuki Sugimoto v Christopher Kosei Ono | 6-4,6-4 |
| UTR Pro Noda | 2025/01/09 02:05 | Kazuki Sugimoto v Kairi Inoue | 6-2,7-5 |
| UTR Pro Noda | 2025/01/19 04:10 | Seiya Nakanishi v Abhishek Bastola | 6-4,6-4 |
| UTR Pro Noda | 2025/01/18 02:15 | Seiya Nakanishi v Mao Takada | 6-0,6-2 |
| UTR Pro Noda | 2025/01/17 00:30 | Andras Necz v Seiya Nakanishi | 6-7,6-3,4-6 |
| UTR Pro Noda | 2025/01/16 01:45 | Koki Matsuda v Seiya Nakanishi | 7-5,3-6,7-5 |
| UTR Pro Noda | 2025/01/14 00:00 | Yuga Tashiro v Seiya Nakanishi | 6-2,6-4 |
| UTR Pro Noda | 2025/01/13 03:25 | Seiya Nakanishi v Yoshinori Kobayashi | 3-6,2-6 |
| UTR Pro Noda | 2025/01/12 00:00 | Christopher Kosei Ono v Seiya Nakanishi | 6-7,6-2,6-3 |
| UTR Pro Noda | 2025/01/11 03:50 | Seiya Nakanishi v Kotaro Mochizuki | 6-3,6-7,7-6 |