Stadium: Court 4 Round: 54 Ground: Hardcourt outdoor
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/06 02:00 | Issei Okamura v Bingyu Yu | 6-1,6-2 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/12 02:25 | Issei Okamura v Sekiguchi, Shuichi | 1-6,0-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/10 07:00 | Jumpei Yamasaki v Issei Okamura | 6-4,5-7,1-6 |
| Matsuyama, Singles M-ITF-JPN-06A | 2019/04/09 02:40 | Issei Okamura v Iino, Shota | 6-2,6-2 |
| ITF - M15 Kashiwa | 2019/04/04 01:00 | Issei Okamura v Jumpei Yamasaki | 3-6,2-6 |
| ITF - M15 Kashiwa | 2019/04/02 05:50 | Taisei Ichikawa v Issei Okamura | 7-5,5-7,5-7 |
| ITF - M15 Tsukuba | 2019/03/27 03:25 | Issei Okamura v Naoki Tajima | 3-6,4-6 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/22 02:00 | Issei Okamura v Tanuma, Ryota | 4-6,2-6 |
| Wuhan, Qualifications Simples M-ITF-CHN-05A | 2019/05/06 02:00 | Chen, Liran v Tsung-Hao Huang | 7-6,4-6,8-10 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/05/02 02:00 | Jie Cui v Tsung-Hao Huang | 6-3,6-0 |
| Wuhan, Singles Qualifying M-ITF-CHN-04A | 2019/05/01 07:25 | Qiu, Zhuoyang v Tsung-Hao Huang | 1-6,0-6 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/18 05:30 | Tanaka, Yunosuke v Tsung-Hao Huang | 6-3,6-3 |
| Kofu, Qualifications Simples M-ITF-JPN-03A | 2019/03/18 00:30 | Tagashira, Kento v Tsung-Hao Huang | 0-6,5-7 |
| ITF - M15 Nishi-Tokyo | 2019/03/11 03:30 | Kawakami, Rimpei v Tsung-Hao Huang | 6-3,6-1 |
| ITF M15 Anning | 2019/01/17 04:45 | Takeda, Naoki v Tsung-Hao Huang | 1-6,7-6,6-4 |
| ITF M15 Anning | 2019/01/16 03:30 | Tsung-Hao Huang v Chen, Ti | 6-3,4-6,6-1 |