Round: 44 Ground: Hardcourt outdoor
| ITF Japan F2 | 2018/03/11 00:30 | Hayato Kudo v Tamaki Yamao | 1-6,0-6 |
| ITF Japan F1 | 2018/03/03 03:00 | Takashi Saito v Tamaki Yamao | 7-6,6-4 |
| Challenger Kyoto Qual | 2018/02/17 06:40 | Blake Ellis v Tamaki Yamao | 6-4,6-4 |
| Challenger Kyoto Qual | 2017/02/18 01:00 | Gengo Kikuchi v Tamaki Yamao | 7-6,6-4 |
| ITF Japan F2 | 2018/03/11 00:30 | Tomohiro Masabayashi v Ibuki Furuta | 6-3,4-6,6-2 |
| ITF Japan F2 | 2018/03/10 02:30 | Tomohiro Masabayashi v Ryuhei Azuma | 6-4,6-3 |
| ITF Japan F1 | 2018/03/04 01:00 | Tomohiro Masabayashi v Masaya Kobayashi | 1-6,6-3,5-7 |
| ITF Hong Kong F6 | 2017/12/30 03:00 | Wai Yu Kai v Tomohiro Masabayashi | 3-6,6-3,6-3 |
| 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 |