Stadium: Court 10 Round: 27 Ground: Clay
| UTR Pro Tennis Series Miki | 2022/07/09 02:00 | Ryotaro Matsumura v Tomohiro Masabayashi | 6-3,3-6,7-6 |
| ITF M15 Karuizawa | 2024/05/30 01:00 | Sungbeen Sim v Tomohiro Masabayashi | 6-2,3-6,1-6 |
| ITF M15 Karuizawa | 2024/05/29 02:00 | Seungmin Park v Tomohiro Masabayashi | 4-6,2-6 |
| Challenger Taipei | 2024/05/14 05:55 | Mukund Sasikumar v Tomohiro Masabayashi | 6-1,6-7,6-1 |
| Challenger Taipei | 2024/05/12 05:15 | Tomohiro Masabayashi v Evan Zhu | 6-2,6-4 |
| ITF M15 Kashiwa | 2024/03/31 01:00 | Daisuke Sumizawa v Tomohiro Masabayashi | 6-4,6-7,10-5 |
| ITF M15 Tsukuba | 2024/03/24 01:00 | Linang Xiao v Tomohiro Masabayashi | 3-6,2-6 |
| ITF M15 Nishi-Tokyo | 2024/03/20 00:50 | Ryotaro Taguchi v Tomohiro Masabayashi | 6-3,6-3 |
| ITF M15 Hinode | 2024/03/11 01:00 | Tomohiro Masabayashi v Daiki Yoshimura | 6-7,0-6 |
| ITF M15 Karuizawa | 2024/05/30 03:20 | Ryotaro Matsumura v Kazuki Nishiwaki | 6-4,6-2 |
| ITF M15 Karuizawa | 2024/05/29 02:00 | Ryotaro Matsumura v Taiyo Yamanaka | 6-3,4-6,12-10 |
| ITF M25 Anning | 2024/05/21 04:30 | Ryotaro Matsumura v Nico Hornitschek | 3-6,1-6 |
| ITF M25 Anning | 2024/05/20 06:00 | Ryotaro Matsumura v Min Seong Kim | 6-3,6-1 |
| ITF M25 Anning | 2024/05/19 01:30 | Ryotaro Matsumura v Xirui Han | 7-5,6-3 |
| ITF M25 Luan | 2024/05/15 03:25 | Ryotaro Matsumura v Fajing Sun | 3-6,1-6 |
| ITF M25 Luan | 2024/05/13 04:45 | Ryotaro Matsumura v Hao Duan | 6-2,6-0 |
| ITF M25 Luan | 2024/05/12 02:00 | Ryotaro Matsumura v Jiaji Wang | 6-3,6-1 |