| ITF - Kashiwa M15 | 03/31 01:00 | 54 | Daisuke Sumizawa v Tomohiro Masabayashi | 6-4,6-7,10-5 | |
| ITF - Tsukuba M15 | 03/24 01:00 | 54 | Linang Xiao v Tomohiro Masabayashi | 3-6,2-6 | |
| ITF - Nishi-Tokyo M15 | 03/20 00:50 | 25 | Ryotaro Taguchi v Tomohiro Masabayashi | 6-3,6-3 | |
| ITF - Hinode M15 | 03/11 01:00 | 62 | Tomohiro Masabayashi v Daiki Yoshimura | 6-7,0-6 | |
| UTR Pro - Kawaguchi | 03/03 02:00 | - | Koki Matsuda v Tomohiro Masabayashi | 6-1,1-6,3-6 | |
| UTR Pro - Kawaguchi | 03/02 01:30 | - | Haruki Katsushima v Tomohiro Masabayashi | 0-6,4-6 | |
| ITF - Yanagawa M15 | 12/18 03:00 | 54 | Tomohiro Masabayashi v Shu Muto | 1-6,7-6,7-10 | |
| ITF - Gold Coast M25 | 11/27 00:00 | 44 | Tomohiro Masabayashi v Andre Szilvassy | 2-6,3-6 | |
| ITF - Brisbane M25 | 11/20 04:30 | 62 | Tomohiro Masabayashi v Mason Naumovski | 6-7,6-3,5-10 | |
| Challenger Shenzhen - Kwalifikacje | 10/15 02:00 | 19 | Tao Mu v Tomohiro Masabayashi | 6-1,6-3 | |
| ITF - Takasaki M25 | 09/17 01:00 | 54 | Tomohiro Masabayashi v Toru Horie | 1-6,3-6 | |
| ITF - Sapporo M25 | 09/15 02:55 | 26 | Tomohiro Masabayashi v Yuki Mochizuki | 6-2,4-6,1-6 | |
| ITF - Sapporo M25 | 09/12 03:45 | 25 | Keisuke Saitoh v Tomohiro Masabayashi | 5-7,3-6 | |
| ITF - Sapporo M25 | 09/11 03:15 | 54 | Tomohiro Masabayashi v Omar Fields | 7-5,2-6,10-7 | |
| ITF - Sapporo M25 | 09/07 01:00 | 26 | Tomohiro Masabayashi v Daisuke Sumizawa | 3-6,3-6 | |
| ITF - Sapporo M25 | 09/06 01:00 | 25 | Keisuke Saitoh v Tomohiro Masabayashi | 4-6,6-3,1-6 | |
| ITF - Sapporo M25 | 09/04 01:00 | 54 | Tomohiro Masabayashi v Chih Chi Huang | 6-3,6-3 | |
| ITF - Tainan M25 | 08/24 02:00 | 26 | Ergi Kirkin v Tomohiro Masabayashi | 6-4,6-3 | |
| ITF - Tainan M25 | 08/23 04:55 | 25 | Chien Hsun Lo v Tomohiro Masabayashi | 7-5,5-7,3-6 | |
| ITF - Tainan M25 | 08/17 02:00 | 26 | Tomohiro Masabayashi v Makoto Ochi | 6-7,1-6 | |
| ITF - Jakarta M15 | 06/27 05:00 | 25 | Nathan Anthony Barki v Tomohiro Masabayashi | 6-2,6-4 | |
| ITF - Jakarta M15 | 06/17 02:00 | 27 | Omar Jasika v Tomohiro Masabayashi | 6-1,6-1 | |
| ITF - Jakarta M15 | 06/15 03:15 | 26 | Hong-Lin Fu v Tomohiro Masabayashi | 2-6,7-5,6-7 | |
| ITF - Jakarta M15 | 06/13 05:55 | 25 | Tomohiro Masabayashi v Savriyan Danilov | Retired | |
| ITF - Dżakarta M25 | 06/06 05:10 | 25 | Tomohiro Masabayashi v Omar Jasika | 0-6,2-6 | |
| ITF - Karuizawa M15 | 05/30 03:30 | 25 | Yuta Kawahashi v Tomohiro Masabayashi | 6-4,6-4 | |
| ITF - Dżakarta M25 | 04/26 05:20 | 25 | Tomohiro Masabayashi v Yanki Erel | 1-6,2-6 | |
| ITF - Dżakarta M25 | 04/25 04:10 | 44 | Tomohiro Masabayashi v Seon Yong Han | 6-2,3-6,10-5 | |
| ITF - Dżakarta M25 | 04/24 03:50 | 44 | Tomohiro Masabayashi v Bang Shuo Yin | 6-2,6-3 | |
| ITF - Dżakarta M25 | 04/20 02:30 | 26 | Tomohiro Masabayashi v Yuta Kawahashi | 1-6,1-6 |