| UTR Pro - Kawaguchi | 2024/03/07 00:04 | Koki Takada v Hiiro Sakamoto | 5-7,3-6 |
| UTR Pro - Kawaguchi | 2024/03/04 23:30 | Masaya Kobayashi v Hiiro Sakamoto | 5-7,5-7 |
| UTR - Pro Taipei | 2023/12/23 07:16 | Hiiro Sakamoto v Yan Cheng Chen | 6-4,5-3 |
| UTR - Pro Taipei | 2023/12/22 02:30 | Hiiro Sakamoto v Hao-Yu Lin | 6-2,6-3 |
| UTR - Pro Taipei | 2023/12/21 02:30 | Alexander Chang v Hiiro Sakamoto | 7-5,5-0 |
| UTR - Pro Taipei | 2023/12/20 02:30 | Ke Hau Hung v Hiiro Sakamoto | 6-0,6-3 |
| UTR - Pro Taipei | 2023/12/19 02:30 | Syue-Lian Chuang v Hiiro Sakamoto | 1-6,4-6 |
| UTR Pro Noda | 2023/10/22 01:30 | Hiiro Sakamoto v Yuto Takahashi | 4-6,6-4,6-2 |
| UTR Pro - Kawaguchi | 2024/03/04 00:00 | Haruki Katsushima v Yuto Miyagawa | 6-1,6-4 |
| UTR Pro - Kawaguchi | 2024/03/02 01:30 | Haruki Katsushima v Tomohiro Masabayashi | 0-6,4-6 |