| Australian Open | 2019/06/06 06:10 | Sitthikom Thammasin v Joo Ven Soong | L | 0-2 |
| Australian Open | 2019/06/05 07:10 | Kanta Tsuneyama v Sitthikom Thammasin | W | 0-2 |
| Sudirman Cup | 2019/05/22 11:00 | Kento Momota v Sitthikom Thammasin | L | 2-0 |
| New Zealand Open | 2019/05/02 07:00 | Sitthikom Thammasin v Kanta Tsuneyama | L | 0-2 |
| New Zealand Open | 2019/05/01 05:20 | Yuxiang Huang v Sitthikom Thammasin | W | 0-2 |
| New Zealand Open | 2019/04/30 20:00 | Yuxiang Huang v Sitthikom Thammasin | W | 0-2 |
| Asia Championships | 2019/04/25 08:00 | Sitthikom Thammasin v Yuqi Shi | L | 0-2 |
| Asia Championships | 2019/04/24 10:40 | June Wei Cheam v Sitthikom Thammasin | W | 1-2 |
| US Open | 2019/07/13 03:25 | Tanongsak Saensomboonsuk v Feixiang Sun | L | 2-1 |
| US Open | 2019/07/11 19:10 | Feixiang Sun v Tzu Wei Wang | W | 2-0 |
| US Open | 2019/07/10 16:10 | Feixiang Sun v Luis Enrique Penalver | W | 2-0 |
| US Open Qual | 2019/07/09 22:40 | Feixiang Sun v Karan Rajan Rajarajan | W | 2-0 |
| US Open Qual | 2019/07/09 19:10 | Feixiang Sun v B.R. Sankeerth | W | 2-1 |
| Canada Open | 2019/07/05 01:40 | Sourabh Verma v Feixiang Sun | L | 2-1 |
| Canada Open | 2019/07/03 23:00 | Feixiang Sun v Kan Chao Yu | W | 2-1 |
| Australian Open Qual | 2019/06/04 03:30 | Feixiang Sun v June Wei Cheam | L | 0-2 |