| Giraldilla Int. XD | 2018/11/03 07:09 | Hyun Il Lee v Sitthikom Thammasin | L | 2-1 |
| Macau Open | 2018/11/03 05:30 | Hyun Il Lee v Sitthikom Thammasin | L | 2-1 |
| Macau Open | 2018/11/02 05:40 | Sitthikom Thammasin v Firman Abdul Kholik | W | 2-0 |
| Macau Open | 2018/11/01 12:15 | Sitthikom Thammasin v Yu Hsien Lin | W | 2-1 |
| Macau Open | 2018/10/31 09:00 | Sitthikom Thammasin v Kwang Hee Heo | W | 2-0 |
| Swiss Open WD Qual | 2018/09/20 08:00 | Lakshya Sen v Sitthikom Thammasin | L | 2-0 |
| Swiss Open WD Qual | 2018/09/19 04:00 | Ryotaro Maruo v Sitthikom Thammasin | W | 0-2 |
| Giraldilla Int. XD | 2018/08/09 12:25 | Tien Minh Nguyen v Sitthikom Thammasin | L | 2-0 |
| Swiss Open WD Qual | 2018/11/20 12:30 | Bodhit Joshi v Jia Wei Tan | W | 1-2 |
| Swiss Open WD Qual | 2018/11/20 03:33 | Jia Wei Tan v Aryamann Tandon | W | 2-0 |
| Dutch Open | 2018/10/10 11:55 | Toby Penty v Jia Wei Tan | L | 2-0 |
| Giraldilla Int. XD | 2018/07/24 07:20 | Siddharth Pratap Singh v Jia Wei Tan | L | 2-0 |
| Giraldilla Int. XD | 2018/03/23 13:00 | Yu Jen Chi v Jia Wei Tan | L | 2-0 |
| Giraldilla Int. XD | 2018/03/22 10:25 | Jia Wei Tan v Duc Phat Le | W | 2-0 |
| Giraldilla Int. XD | 2018/01/10 13:15 | Pannawit Thongnuam v Jia Wei Tan | L | 2-0 |
| Indonesia Masters XD | 2017/11/28 10:30 | Jia Wei Tan v Hwang Jong Soo | L | 0-2 |