| UTR Pro - Osaka | 2023/07/27 06:00 | Hiromasa Koyama v Shu Matsuoka | 1-6,4-6 |
| UTR Pro - Osaka | 2023/07/25 00:30 | Brody Nejedly-Krall v Hiromasa Koyama | 6-2,6-3 |
| UTR Pro - Miki | 2023/02/12 00:30 | Hiromasa Koyama v Shion Itsusaki | 4-6,6-4,5-7 |
| UTR Pro - Miki | 2023/02/10 03:30 | Yuji Arimura v Hiromasa Koyama | 3-6,3-6 |
| UTR Pro - Miki | 2023/02/09 00:30 | Yuichiro Inui v Hiromasa Koyama | 7-5,6-1 |
| UTR Pro - Miki | 2023/02/07 00:30 | Kento Tagashira v Hiromasa Koyama | 6-3,7-5 |
| UTR Pro - Miki | 2023/02/06 03:30 | Hiromasa Koyama v Yuta Kawahashi | 0-6,0-6 |
| UTR Pro Tennis Series - Miki | 2022/12/07 02:00 | Hiromasa Koyama v Ryohei Takase | 0-0 |
| UTR Pro - Osaka | 2023/07/26 06:24 | Brody Nejedly-Krall v Ryoma Matsushita | 2-6,6-7 |
| UTR Pro - Osaka | 2023/07/24 05:30 | Shu Matsuoka v Ryoma Matsushita | 3-6,5-7 |
| UTR Pro - Miki | 2023/07/02 00:30 | Ryoma Matsushita v Ryoma Mishiro | 2-6,1-6 |
| UTR Pro - Miki | 2023/07/01 06:47 | Ryoma Matsushita v Sota Minami | 6-1,4-6,5-1 |
| UTR Pro - Miki | 2023/06/30 02:00 | Ryoma Matsushita v Ryotaro Taguchi | 4-6,3-6 |
| UTR Pro - Miki | 2023/06/29 06:00 | Ryoma Matsushita v Mizuki Kawada | 6-4,7-6 |
| UTR Pro - Miki | 2023/06/28 02:00 | Rikuto Yamaguchi v Ryoma Matsushita | 6-1,4-6,6-3 |
| UTR Pro Tennis Series - Miki | 2022/12/10 05:00 | Ryoma Matsushita v Yuga Tashiro | 6-2,4-6,2-6 |