| Internacional de Giraldilla - Duplas Mistas | 2018/07/24 02:15 | Chih Chieh Yang v Takuma Obayashi | L | 2-0 |
| Akita Masters | 2019/08/16 03:10 | Takuma Obayashi v Yusuke Onodera | L | 1-2 |
| Akita Masters | 2019/08/15 05:25 | Takuma Obayashi v Jeffrey Lam | W | 2-0 |
| Akita Masters | 2019/08/14 02:50 | Takuma Obayashi v Sheng Po Yu | W | 2-0 |
| Akita Masters | 2019/08/13 01:50 | Jia Wei Tan v Takuma Obayashi | W | 1-2 |
| Internacional de Osaka | 2019/04/07 02:00 | Takuma Obayashi v Koki Watanabe | L | 1-2 |
| Internacional de Osaka | 2019/04/06 04:00 | Hashiru Shimono v Takuma Obayashi | W | 0-2 |
| Open da Suécia | 2019/01/19 09:30 | Eetu Heino v Takuma Obayashi | L | 2-0 |
| Open da Suécia | 2019/01/18 14:30 | B.R. Sankeerth v Takuma Obayashi | W | 0-2 |
| Open de Taipé da China | 2019/09/04 12:30 | Chih Chieh Yang v Koki Watanabe | L | 0-2 |
| Open de Taipé da China - Qualificação | 2019/09/03 05:30 | Pang Fong Pui v Chih Chieh Yang | W | 0-2 |
| Open da Austrália - Qualificação | 2019/06/04 03:30 | Chico Aura Dwi Wardoyo v Chih Chieh Yang | L | 2-1 |
| Open da Austrália - Qualificação | 2019/06/04 00:35 | Jason Anthony Ho-Shue v Chih Chieh Yang | W | 1-2 |
| Internacional do Vietname | 2019/04/11 11:45 | Jia Wei Tan v Chih Chieh Yang | L | 2-0 |
| Internacional do Vietname | 2019/04/09 11:30 | Yehezkiel Fritz Mainaky v Chih Chieh Yang | W | 0-2 |
| China Masters | 2019/03/15 10:50 | Iskandar Zulkarnain v Chih Chieh Yang | L | 2-1 |
| China Masters | 2019/03/14 07:40 | Jiahao Yu v Chih Chieh Yang | W | 1-2 |