Stadium: Court 1 Round: 166 Ground: Hardcourt outdoor
| Challenger - Šanghaj | 2019/09/11 05:45 | Jumpei Yamasaki v Enrique Lopez-Perez | 4-6,6-3,2-6 |
| Challenger - Šanghaj | 2019/09/10 02:30 | Kazuki Nishiwaki v Jumpei Yamasaki | 3-6,2-6 |
| Challenger Baotou | 2019/08/28 07:35 | Jumpei Yamasaki v Mukund Sasikumar | 0-6,2-6 |
| ITF - M15 Jakarta | 2019/08/25 02:30 | Dusty H. Boyer v Jumpei Yamasaki | 3-6,1-6 |
| ITF - M15 Jakarta | 2019/08/24 03:00 | Jumpei Yamasaki v Rhett Purcell | 6-3,7-6 |
| ITF - M15 Jakarta | 2019/08/23 02:30 | Aaron Schmid v Jumpei Yamasaki | 6-7,5-7 |
| ITF - M15 Jakarta | 2019/08/22 02:30 | Pak Long Yeung v Jumpei Yamasaki | 3-6,3-6 |
| ITF - M15 Jakarta | 2019/08/20 05:25 | Kunal Anand v Jumpei Yamasaki | 3-6,2-6 |
| ITF M25 Taipei | 2019/07/22 02:00 | Chang-Lin Tsai v Kousuke Ogura | 7-6,3-6,4-10 |
| ITF M25 Taipei | 2019/07/16 06:25 | Chang-Lin Tsai v Yusuke Takahashi | 6-7,1-6 |
| Challenger - Tchaj-pej | 2019/04/08 02:00 | N.Sriram Balaji v Chang-Lin Tsai | 6-3,6-4 |
| ITF Chinese Taipei F1 | 2018/07/17 03:55 | Chang-Lin Tsai v Tung-Lin Wu | 2-6,4-6 |