Round: 44 Ground: Hardcourt outdoor
| ITF Hong Kong F2 Qual | 2017/06/25 03:00 | Mousheg Hovhannisyan v Tomohiro Masabayashi | 6-2,6-4 |
| ITF Hong Kong F2 Qual | 2017/06/24 03:00 | Patrick Rynsaardt v Tomohiro Masabayashi | 1-6,0-6 |
| ITF Hong Kong F1 | 2017/06/21 07:00 | Francis Casey Alcantara v Tomohiro Masabayashi | 6-4,6-4 |
| ITF Hong Kong F1 | 2017/06/19 06:00 | Tomohiro Masabayashi v San Wong | 6-1,6-1 |
| ITF Japan F8 | 2017/06/11 00:00 | Rio Noguchi v Tomohiro Masabayashi | 6-2,6-1 |
| ITF Japan F7 | 2017/06/06 05:40 | Haru Inoue v Tomohiro Masabayashi | 6-1,6-3 |
| ITF Japan F7 | 2017/06/04 01:00 | Naru Shirafuji v Tomohiro Masabayashi | 3-6,4-6 |
| ITF Japan F7 | 2017/06/03 04:00 | Tomohiro Masabayashi v Hiromasa Oku | 6-2,7-5 |