Stadium: Court 1 Round: 166 Ground: Hardcourt outdoor
| Challenger Shanghai | 2019/09/11 05:45 | Jumpei Yamasaki v Lopez Perez | 4-6,6-3,2-6 |
| Challenger Shanghai | 2019/09/10 02:30 | Kazuki Nishiwaki v Jumpei Yamasaki | 3-6,2-6 |
| Baotou, Chine | 2019/08/28 07:35 | Jumpei Yamasaki v Mukund Sasikumar | 0-6,2-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/25 02:30 | Boyer, Dusty H v Jumpei Yamasaki | 3-6,1-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/24 03:00 | Jumpei Yamasaki v Purcell, Rhett | 6-3,7-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/23 02:30 | Schmid, Aaron v Jumpei Yamasaki | 6-7,5-7 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/22 02:30 | Yeung, Pak Long v Jumpei Yamasaki | 3-6,3-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/20 05:25 | Anand, Kunal v Jumpei Yamasaki | 3-6,2-6 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/22 02:00 | Tsai, Chang-Lin v Kousuke Ogura | 7-6,3-6,4-10 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/16 06:25 | Tsai, Chang-Lin v Yusuke Takahashi | 6-7,1-6 |
| Challenger - Taipei | 2019/04/08 02:00 | Balaji, N. Sriram v Tsai, Chang-Lin | 6-3,6-4 |
| ITF Chinese Taipei F1 | 2018/07/17 03:55 | Tsai, Chang-Lin v Tung-Lin Wu | 2-6,4-6 |