Stadium: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF M15 - Kashiwa | 2019/04/02 02:25 | Yusuke Takahashi v Rio Noguchi | 6-3,3-6,7-5 |
| ITF M15 Kofu | 2019/03/22 03:50 | Yusuke Takahashi v Jumpei Yamasaki | 3-6,1-6 |
| 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 |
| ITF M15 Kofu | 2019/03/19 01:00 | Keisuke Saitoh v Jumpei Yamasaki | 2-6,3-6 |
| ITF M15 - Nishi-Tokyo | 2019/03/13 01:00 | Shuichi Sekiguchi v Keisuke Saitoh | 6-3,6-2 |
| ITF M15 Nishi-Tama | 2019/03/08 02:40 | Seong Chan Hong v Keisuke Saitoh | 6-3,6-0 |
| ITF M15 Nishi-Tama | 2019/03/06 01:00 | Soichiro Moritani v Keisuke Saitoh | 2-6,0-6 |