Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Kofu | 2019/03/21 03:40 | Yusuke Takahashi v Naoki Tajima | 6-3,6-2 |
| Challenger Drummondville | 2019/03/12 00:35 | Liam Draxl v Yusuke Takahashi | 6-3,6-2 |
| ITF M15 Nishi-Tama | 2019/03/05 03:30 | Yusuke Takahashi v Shintaro Imai | 1-6,7-5,3-6 |
| Challenger Yokohama | 2019/02/25 06:10 | Yusuke Takahashi v Moez Echargui | 5-7,7-5,2-6 |
| Challenger Launceston | 2019/01/30 23:00 | Max Purcell v Yusuke Takahashi | 6-4,6-4 |
| Challenger Launceston | 2019/01/29 23:00 | Yusuke Takahashi v Hiroki Moriya | 6-3,6-4 |
| Challenger Launceston | 2019/01/28 04:35 | Daniel Altmaier v Yusuke Takahashi | 6-4,4-6,4-6 |
| Challenger Da Nang | 2019/01/08 06:50 | Alen Avidzba v Yusuke Takahashi | 6-4,6-2 |
| ITF M15 Kofu | 2019/03/21 04:10 | Jumpei Yamasaki v Min-Kyu Song | 7-5,6-1 |
| ITF M15 Kofu | 2019/03/19 01:00 | Keisuke Saitoh v Jumpei Yamasaki | 2-6,3-6 |
| ITF M15 Nishi-Tokyo | 2019/03/14 01:00 | Shintaro Imai v Jumpei Yamasaki | 3-6,6-3,6-3 |
| ITF M15 Nishi-Tokyo | 2019/03/13 02:20 | Jumpei Yamasaki v Michael Look | 6-4,2-6,6-2 |
| ITF M15 Nishi-Tama | 2019/03/09 01:00 | Jumpei Yamasaki v Ji Sung Nam | 2-6,1-6 |
| ITF M15 Nishi-Tama | 2019/03/08 06:50 | Seong Chan Hong v Jumpei Yamasaki | 6-3,6-7,2-6 |
| ITF M15 Nishi-Tama | 2019/03/08 02:30 | Gengo Kikuchi v Jumpei Yamasaki | 6-7,6-4,3-6 |
| ITF M15 Nishi-Tama | 2019/03/06 02:30 | Jumpei Yamasaki v Blake Ellis | 7-5,6-4 |