Stadium: Court 5 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Hua Hin | 2019/09/05 05:00 | Seita Watanabe v Takashi Saito | 4-6,4-6 |
| ITF M15 Hua Hin | 2019/09/04 07:35 | Takashi Saito v Yuttana Charoenphon | 5-7,6-4,6-0 |
| ITF M15 Hua Hin | 2019/09/03 04:00 | Takashi Saito v Wei-De Lin | 7-6,6-3 |
| ITF M15 Hua Hin | 2019/09/02 05:20 | Takashi Saito v Chayanon Kaewsuto | 6-3,6-2 |
| ITF M15 Hua Hin | 2019/09/01 02:00 | Yu Hsiou Hsu v Takashi Saito | 6-0,3-6,6-4 |
| ITF M15 Hua Hin | 2019/08/30 03:00 | Takashi Saito v Dayne Kelly | 1-6,6-3,6-4 |
| ITF M15 Hua Hin | 2019/08/28 03:00 | Takashi Saito v Chien Hsun Lo | 6-1,6-1 |
| ITF M15 Jakarta | 2019/08/13 07:00 | Tsung-Hao Huang v Takashi Saito | 6-2,6-7,10-6 |
| ITF M15 Hua Hin | 2019/09/05 03:00 | Bradley Mousley v Yusuke Takahashi | 2-6,7-6,3-6 |
| ITF M15 Hua Hin | 2019/09/04 03:00 | Tsung-Hao Huang v Yusuke Takahashi | 2-6,1-6 |
| Challenger Baotou | 2019/08/28 04:40 | Frederico Ferreira Silva v Yusuke Takahashi | 6-3,6-0 |
| Challenger Baotou | 2019/08/27 07:05 | Yusuke Takahashi v Rhett Purcell | 7-5,6-3 |
| Challenger Yokkaichi | 2019/08/08 06:05 | Hyeon Chung v Yusuke Takahashi | 3-6,6-1,6-4 |
| Challenger Yokkaichi | 2019/08/07 02:00 | Kazuki Nishiwaki v Yusuke Takahashi | 5-7,6-3,3-6 |
| Challenger Chengdu | 2019/07/30 08:05 | Yusuke Takahashi v Yan Bai | 4-6,2-6 |
| Challenger Chengdu | 2019/07/29 10:45 | Issei Okamura v Yusuke Takahashi | 1-6,2-6 |