Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/21 09:00 | Issei Okamura v Yu Hsiou Hsu | 2-6,1-6 |
| Challenger Yokkaichi | 2019/08/05 06:20 | Issei Okamura v Jie Cui | 3-6,3-6 |
| Chengdu, China | 2019/07/29 10:45 | Issei Okamura v Yusuke Takahashi | 1-6,2-6 |
| Challenger Granby | 2019/07/22 14:00 | Issei Okamura v Garanganga, Takanyi | 4-6,4-6 |
| Challenger Winnipeg | 2019/07/08 16:00 | Issei Okamura v Boulais, Justin | 2-6,5-7 |
| ITF - M15 Daegu | 2019/06/05 03:55 | Seita Watanabe v Issei Okamura | 6-4,7-6 |
| Luzhou, Simples M-ITF-CHN-07A | 2019/05/30 04:05 | Zheng, Weiqiang v Issei Okamura | 2-6,6-2,6-0 |
| Luzhou, Simples M-ITF-CHN-07A | 2019/05/29 02:00 | Chiu, Yu Hsiang v Issei Okamura | 4-6,1-6 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/22 04:15 | Moritani, Soichiro v Wang, Chukang | 3-6,1-6 |
| Hua Hin, Singles M-ITF-THA-07A | 2019/08/21 03:00 | Ko Suzuki v Moritani, Soichiro | 4-6,4-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/13 05:05 | Moritani, Soichiro v Schmid, Aaron | 3-6,3-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/12 02:30 | Moritani, Soichiro v Jesse Delaney | 6-3,6-0 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/09 02:30 | Saito, Takashi v Moritani, Soichiro | 6-2,4-6,6-0 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/08 03:50 | Moritani, Soichiro v Niki Kaliyanda Poonacha | 7-6,7-6 |
| Jakarta, Singles Main, M-ITF-INA-02A | 2019/08/07 05:50 | Moritani, Soichiro v Singh, Karunuday | 7-5,6-2 |
| Nonthaburi, Singles M-ITF-THA-01A | 2019/07/30 06:25 | Ryota Tanuma v Moritani, Soichiro | 6-2,2-6,6-3 |