| Dutch Open XD | 2021/10/13 18:55 | Mueller/Stern v Bugtrup/Bergstein | L | 0-2 |
| Hellas Int. XD | 2021/09/03 13:25 | Yap/Siow v Mueller/Stern | L | 2-0 |
| Hellas Int. XD | 2021/09/03 06:00 | Mueller/Stern v Tores/Vercelot | W | 2-0 |
| Latvia Int. XD | 2021/08/28 07:00 | Mueller/Stern v Azman/Low | L | 0-2 |
| Latvia Int. XD | 2021/08/27 10:00 | Mueller/Stern v Xu/Christensen | W | 2-0 |
| Denmark Masters XD | 2021/08/06 07:00 | Ivancic/Polanc v Mueller/Stern | L | 2-1 |
| Spain Int XD | 2021/06/18 13:00 | Mueller/Stern v Birker P / Hochmeir K | L | 1-2 |
| Spain Int XD | 2021/06/18 07:45 | Mueller/Stern v De Wit/Van Wijlick | W | 2-0 |
| Italian Int. XD | 2021/12/17 08:40 | Stokfisz/Wladzinska v El Khateeb/Ahmed Youssri | W | 2-0 |
| Czech Open XD | 2021/10/22 07:20 | Stokfisz/Wladzinska v Barinov L / Boiarun A | L | 0-2 |
| Cyprus Int. XD | 2021/10/16 06:35 | Mael Cattoen/Pognante v Stokfisz/Wladzinska | L | 2-1 |
| Bulgarian Int. XD | 2021/10/08 06:00 | Stokfisz/Wladzinska v Petrovic/Sudimac | L | 0-2 |
| Polish Int. XD | 2021/09/24 11:20 | Stokfisz/Wladzinska v Yakovlev/Tkach | L | 1-2 |