| Estonian Int. | 2019/01/12 09:00 | Sergey Sirant v Arnaud Merkle | L | 0-2 |
| Giraldilla Int. XD | 2018/12/14 16:00 | Sergey Sirant v Nhat Nguyen | L | 0-2 |
| Giraldilla Int. XD | 2018/11/21 08:00 | Sai Praneeth B. v Sergey Sirant | L | 2-0 |
| Giraldilla Int. XD | 2018/08/08 10:25 | Xiaodong Sheng v Sergey Sirant | L | 2-0 |
| Giraldilla Int. XD | 2018/08/08 01:30 | Fikri Ihsandi Hadmadi v Sergey Sirant | W | 0-2 |
| World Championships | 2018/08/01 02:50 | Kenta Nishimoto v Sergey Sirant | L | 2-0 |
| World Championships | 2018/07/30 07:50 | Sergey Sirant v Milan Ludik | W | 2-0 |
| Giraldilla Int. XD | 2018/07/26 04:00 | Sourabh Verma v Sergey Sirant | L | 2-0 |
| Swiss Open WD Qual | 2019/02/20 10:30 | Max Weisskirchen v Daniel Nikolov | L | 1-2 |
| Giraldilla Int. XD | 2019/02/17 13:30 | Anders Antonsen v Max Weisskirchen | L | 2-0 |
| Giraldilla Int. XD | 2019/02/14 13:30 | Vladimir Malkov v Max Weisskirchen | L | 2-0 |
| Giraldilla Int. XD | 2019/02/13 13:00 | Nhat Nguyen v Max Weisskirchen | L | 2-1 |
| Swiss Open WD Qual | 2018/12/13 13:15 | Albin Carl Hjelm v Max Weisskirchen | L | 2-1 |
| Swiss Open WD Qual | 2018/12/13 10:45 | Jacek Kolumbajew v Max Weisskirchen | W | 0-2 |
| Giraldilla Int. XD | 2018/11/21 18:00 | Max Weisskirchen v Rasmus Messerschmidt | L | 1-2 |
| Giraldilla Int. XD | 2018/10/30 18:00 | Max Weisskirchen v Michal Rogalski | L | 0-2 |