Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Tay Ninh | 2019/10/05 09:00 | Kazuki Nishiwaki v Nguyen, Daniel | 2-6,3-6 |
| ITF M25 Tay Ninh | 2019/10/04 08:00 | Yusuke Takahashi v Kazuki Nishiwaki | 0-6,6-3,2-6 |
| ITF M25 Tay Ninh | 2019/10/03 02:00 | Kazuki Nishiwaki v Liu, Shao-Fan | 4-6,6-2,6-3 |
| ITF M25 Tay Ninh | 2019/10/01 05:55 | Kazuki Nishiwaki v Lo, Chien Hsun | 6-3,6-4 |
| Challenger Shanghai | 2019/09/10 02:30 | Kazuki Nishiwaki v Jumpei Yamasaki | 3-6,2-6 |
| Challenger Shanghai | 2019/09/09 02:00 | Kazuki Nishiwaki v Balaji, N. Sriram | 6-4,6-3 |
| ITF M15 Cancun | 2019/08/20 20:20 | Olivares, Jose v Kazuki Nishiwaki | 6-3,3-6,6-0 |
| Challenger Yokkaichi | 2019/08/07 02:00 | Kazuki Nishiwaki v Yusuke Takahashi | 5-7,6-3,3-6 |
| Challenger Kaohsiung | 2019/09/18 06:05 | Yang, Tsung-Hua v Harris, Andrew | 6-7,3-6 |
| Challenger Kaohsiung | 2019/09/17 06:15 | Hsieh, Cheng-Peng v Yang, Tsung-Hua | 2-6,2-6 |
| Jinan, China | 2019/09/02 03:20 | Crepatte, Baptiste v Yang, Tsung-Hua | 6-4,7-6 |
| Baotou, Chine | 2019/08/29 04:50 | James Duckworth v Yang, Tsung-Hua | 3-6,7-6,6-1 |
| Baotou, Chine | 2019/08/28 08:35 | Miljan Zekic v Yang, Tsung-Hua | 3-6,7-5,1-6 |
| Challenger Yokkaichi | 2019/08/08 02:00 | Yang, Tsung-Hua v Sugita, Yuichi | 3-6,1-6 |
| Challenger Yokkaichi | 2019/08/06 04:50 | Yang, Tsung-Hua v Yuta Shimizu | 1-6,6-1,6-4 |
| Chengdu, China | 2019/07/31 08:55 | Sekiguchi, Shuichi v Yang, Tsung-Hua | 6-4,6-4 |