| Italian Int. XD | 2021/12/17 10:40 | Mueller/Stern v Stokfisz/Wladzinska | W | 2-0 |
| 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 |
| Italian Int. XD | 2021/12/17 11:20 | Barinov L / Boiarun A v Pham/Racloz | W | 2-0 |
| Italian Int. XD | 2021/12/17 08:40 | Barinov L / Boiarun A v Scafuri/Christodoulou | W | 2-0 |
| Czech Open XD | 2021/10/24 08:00 | Hee/Tan v Barinov L / Boiarun A | L | 2-0 |
| Czech Open XD | 2021/10/23 14:00 | Dias/Sirimannage v Barinov L / Boiarun A | W | 1-2 |
| Czech Open XD | 2021/10/22 07:20 | Stokfisz/Wladzinska v Barinov L / Boiarun A | W | 0-2 |
| Austrian Open - Doubles Mixtes - Qualif. | 2020/02/20 08:30 | Barinov L / Boiarun A v Kaisti A / Basova A | L | 1-2 |
| Open de Suède - Doubles Mixtes | 2020/01/17 08:00 | Lau / Ruus v Barinov L / Boiarun A | W | 1-2 |
| Estonie Int. - Doubles Mixtes | 2020/01/10 14:30 | Barinov L / Boiarun A v Nishikawa Y / Ozaki S | L | 0-2 |