Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| ITF M25 Tainan | 2023/08/24 02:00 | Ergi Kirkin v Tomohiro Masabayashi | 6-4,6-3 |
| ITF M25 Tainan | 2023/08/23 04:55 | Chien Hsun Lo v Tomohiro Masabayashi | 7-5,5-7,3-6 |
| ITF M25 Tainan | 2023/08/17 02:00 | Tomohiro Masabayashi v Makoto Ochi | 6-7,1-6 |
| ITF M15 Jakarta | 2023/06/27 05:00 | Nathan Anthony Barki v Tomohiro Masabayashi | 6-2,6-4 |
| ITF M15 Jakarta | 2023/06/17 02:00 | Omar Jasika v Tomohiro Masabayashi | 6-1,6-1 |
| ITF M15 Jakarta | 2023/06/15 03:15 | Hong-Lin Fu v Tomohiro Masabayashi | 2-6,7-5,6-7 |
| ITF M25 Jakarta | 2023/06/06 05:10 | Tomohiro Masabayashi v Omar Jasika | 0-6,2-6 |
| ITF M15 Karuizawa | 2023/05/30 03:30 | Yuta Kawahashi v Tomohiro Masabayashi | 6-4,6-4 |
| ITF M15 Karuizawa | 2023/05/31 01:00 | Toru Horie v Hikaru Shiraishi | 4-6,6-4,4-6 |
| ITF M15 Karuizawa | 2023/05/30 02:00 | Toru Horie v Taki Adachi | 6-2,6-1 |
| ITF M15 Karuizawa | 2023/05/28 01:15 | Ryusuke Horiuchi v Toru Horie | 2-6,4-6 |
| ITF M15 Monastir | 2023/05/10 14:10 | Toru Horie v Thomas Braithwaite | 2-6,6-3,6-7 |
| ITF M15 Monastir | 2023/05/09 12:30 | Toru Horie v Zhan Zheng | 7-5,4-6,10-6 |
| ITF M15 Monastir | 2023/05/09 09:00 | Linang Xiao v Toru Horie | 3-6,1-6 |
| ITF M25 Kashiwa | 2023/04/02 02:30 | Toru Horie v Hikaru Shiraishi | 6-3,5-7,4-10 |
| ITF M25 Tsukuba | 2023/03/27 04:00 | Kazuki Nishiwaki v Toru Horie | 6-3,6-0 |