| Singapore Open Qual | 2019/04/09 03:10 | Ihsan Maulana Mustofa v Sitthikom Thammasin | W | 0-2 |
| Malaysia Open | 2019/04/04 08:40 | Sitthikom Thammasin v Kanta Tsuneyama | L | 1-2 |
| Malaysia Open | 2019/04/03 05:00 | Sitthikom Thammasin v H.S. Prannoy | W | 2-1 |
| India Open | 2019/03/28 07:30 | Khosit Phetpradab v Sitthikom Thammasin | L | 2-1 |
| India Open | 2019/03/27 07:50 | Sitthikom Thammasin v R. M. V. Gurusaidutt | W | 2-0 |
| German Open | 2019/02/28 14:40 | Sitthikom Thammasin v Kenta Nishimoto | L | 0-2 |
| German Open | 2019/02/27 10:25 | Thomas Rouxel v Sitthikom Thammasin | W | 0-2 |
| Indonesia Masters | 2019/01/24 03:20 | Sitthikom Thammasin v Zii Jia Lee | L | 0-2 |
| Singapore Open Qual | 2019/04/09 03:10 | Kean Yew Loh v Cheuk Yiu Lee | W | 0-2 |
| India Open | 2019/03/27 11:50 | Cheuk Yiu Lee v Parupalli Kashyap | L | 1-2 |
| Tong Yun Kai Cup | 2019/03/23 11:30 | Cheuk Yiu Lee v Guangzu Lu | L | 0-2 |
| German Open | 2019/02/28 17:50 | Cheuk Yiu Lee v Tien Chen Chou | L | 1-2 |
| German Open | 2019/02/27 18:45 | Cheuk Yiu Lee v Kazumasa Sakai | W | 2-0 |
| Spain Masters | 2019/02/20 16:40 | Cheuk Yiu Lee v Anders Antonsen | L | 0-2 |
| Indonesia Masters XD | 2019/01/16 10:10 | Long Chen v Cheuk Yiu Lee | L | 2-0 |
| Thailand Masters | 2019/01/10 09:30 | Dan Lin v Cheuk Yiu Lee | L | 2-1 |