| Dutch Open XD | 2021/10/16 09:00 | Piek/Tabeling v Birker/Hochmeir | L | 2-0 |
| Dutch Open XD | 2021/10/14 08:30 | Birker/Hochmeir v Gnedt/Polc | W | 2-0 |
| Polish Int. XD | 2021/09/25 08:00 | Wassink/Tirtosentono v Birker/Hochmeir | L | 2-0 |
| Ukraine Int. XD | 2021/09/09 07:20 | Siow/Yap v Birker/Hochmeir | L | 2-0 |
| Ukraine Int. XD | 2021/09/08 08:00 | Yakovlev/Tkach v Birker/Hochmeir | W | 1-2 |
| Spain Int XD | 2021/06/19 07:00 | Hemming/Pugh v Birker/Hochmeir | L | 2-0 |
| Spain Int XD | 2021/06/18 13:00 | Mueller/Stern v Birker/Hochmeir | W | 1-2 |
| Spain Int XD | 2021/06/18 07:45 | Leal/Lopez v Birker/Hochmeir | W | 0-2 |
| Czech Open XD Qual | 2021/10/21 10:35 | Zinchenko/Kozyreva v Adam/Bauer | W | 2-0 |