Stadium: Court 3 Round: 26 Ground: Hardcourt outdoor
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/22 03:50 | Yusuke Takahashi v Jumpei Yamasaki | 3-6,1-6 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/24 02:00 | Yusuke Takahashi v Lucas Renard | 5-7,7-6,6-2 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/18 10:10 | Yu, Cheng-Yu v Yusuke Takahashi | 7-5,6-2 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/16 06:25 | Tsai, Chang-Lin v Yusuke Takahashi | 6-7,1-6 |
| Yinchuan, Simples M-ITF-CHN-11A | 2019/06/25 03:40 | Zheng, Weiqiang v Yusuke Takahashi | 6-4,6-2 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/14 03:00 | Chun Hsin Tseng v Yusuke Takahashi | 4-6,7-5,6-1 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/13 05:50 | Michael Zhu v Yusuke Takahashi | 3-6,6-3,3-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/12 02:55 | Yeung, Pak Long v Yusuke Takahashi | 4-6,3-6 |
| Hong Kong, Simples M-ITF-HKG-04A | 2019/06/07 02:00 | Sekiguchi, Shuichi v Yusuke Takahashi | 6-3,6-3 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/23 02:00 | Jumpei Yamasaki v Purcell, Rhett | 3-6,6-1,6-2 |
| Taipei, Singles M-ITF-TPE-01A | 2019/07/17 02:00 | Jumpei Yamasaki v Kousuke Ogura | 6-2,3-6,4-6 |
| Qujing, Simples M-ITF-CHN-13A | 2019/07/13 02:30 | Jumpei Yamasaki v Yan Bai | 0-6,5-7 |
| Qujing, Simples M-ITF-CHN-13A | 2019/07/12 03:25 | Rio Noguchi v Jumpei Yamasaki | 3-6,2-6 |
| Qujing, Simples M-ITF-CHN-13A | 2019/07/11 03:50 | Jumpei Yamasaki v Makoto Ochi | 2-6,6-3,7-6 |
| Qujing, Simples M-ITF-CHN-13A | 2019/07/10 04:00 | Wang, Ruixuan v Jumpei Yamasaki | 4-6,2-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/10 07:00 | Jumpei Yamasaki v Issei Okamura | 6-4,5-7,1-6 |
| ITF - M15 Kashiwa | 2019/04/07 03:30 | Yuki Mochizuki v Jumpei Yamasaki | 2-6,6-2,2-6 |