| Swiss Open WD Qual | 2018/07/10 06:00 | Sitthikom Thammasin v Rahul Yadav Chittaboina | W | 2-0 |
| Swiss Open WD Qual | 2018/07/10 01:52 | Yuehang Wang v Sitthikom Thammasin | W | 0-2 |
| Giraldilla Int. XD | 2018/06/21 21:40 | Junpeng Zhao v Sitthikom Thammasin | L | 2-0 |
| Giraldilla Int. XD | 2018/06/20 19:40 | Sitthikom Thammasin v Kai Schaefer | W | 2-0 |
| US Open | 2018/06/14 00:20 | Sitthikom Thammasin v Mark Caljouw | L | 0-2 |
| Giraldilla Int. XD | 2018/04/05 04:40 | Minoru Koga v Sitthikom Thammasin | L | 2-0 |
| Giraldilla Int. XD | 2018/02/21 09:20 | Sitthikom Thammasin v Takuma Ueda | W | 2-1 |
| Giraldilla Int. XD | 2018/01/10 06:30 | Panji Ahmad Maulana v Sitthikom Thammasin | L | 2-0 |
| Giraldilla Int. XD | 2018/06/23 00:45 | Toby Penty v Guangzu Lu | L | 1-2 |
| Giraldilla Int. XD | 2018/06/21 23:00 | Takuma Obayashi v Toby Penty | W | 0-2 |
| Giraldilla Int. XD | 2018/06/21 00:30 | Young Woong Ha v Toby Penty | W | 0-2 |
| US Open | 2018/06/13 23:00 | Toby Penty v Kwang Hee Heo | L | 1-2 |
| Giraldilla Int. XD | 2018/05/13 09:00 | Pablo Abian v Toby Penty | W | 0-2 |
| Giraldilla Int. XD | 2018/05/12 15:00 | Dmytro Zavadsky v Toby Penty | W | 0-2 |
| Giraldilla Int. XD | 2018/05/12 09:00 | Jacob Nilsson v Toby Penty | W | 0-2 |
| Indonesia Masters XD | 2018/04/25 17:35 | Toby Penty v Anders Antonsen | L | 1-2 |