| 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 |
| Giraldilla Int. XD | 2018/08/08 15:05 | Giap Chin Goh v Sitthikom Thammasin | W | 0-2 |
| Giraldilla Int. XD | 2018/07/29 03:00 | Sitthikom Thammasin v Ihsan Maulana Mustofa | W | 2-0 |
| Giraldilla Int. XD | 2018/07/28 05:49 | Sitthikom Thammasin v Jan O Jorgensen | W | 2-0 |
| Giraldilla Int. XD | 2018/07/28 04:00 | Sitthikom Thammasin v Jan O Jorgensen | W | 2-0 |
| Giraldilla Int. XD | 2018/07/27 00:05 | Chia Hao Lee v Sitthikom Thammasin | W | 0-2 |
| Indonesia Masters XD | 2018/09/28 05:30 | Kwang Hee Heo v Tommy Sugiarto | L | 1-2 |
| Indonesia Masters XD | 2018/09/27 07:55 | Wan Ho Son v Kwang Hee Heo | W | 1-2 |
| Indonesia Masters XD | 2018/09/26 01:40 | Kwang Hee Heo v Dong Keun Lee | W | 2-0 |
| Swiss Open WD Qual | 2018/09/25 04:59 | Kwang Hee Heo v Seung Hoon Lee | W | 2-0 |
| Swiss Open WD Qual | 2018/09/25 02:33 | Zvonimir Durkinjak v Kwang Hee Heo | W | 0-2 |
| Giraldilla Int. XD | 2018/09/07 09:50 | Kwang Hee Heo v Joo Ven Soong | L | 1-2 |
| Giraldilla Int. XD | 2018/09/06 12:40 | Ikhsan L I Rumbay v Kwang Hee Heo | W | 1-2 |
| Giraldilla Int. XD | 2018/09/05 15:55 | Lakshya Sen v Kwang Hee Heo | W | 0-2 |