| Dutch Open - Dublu Mixt | 2021/10/15 13:40 | Piek/Tabeling v Bugtrup/Bergstein | W | 2-0 |
| Dutch Open - Dublu Mixt | 2021/10/13 18:15 | Piek/Tabeling v Tores/Vercelot | W | 2-0 |
| Jocurile Olimpice 2020 - Dublu Mixt | 2021/07/26 01:40 | Piek/Tabeling v Elgamal/Hany | W | 2-0 |
| Jocurile Olimpice 2020 - Dublu Mixt | 2021/07/25 05:00 | Zheng/Huang v Piek/Tabeling | L | 2-0 |
| Jocurile Olimpice 2020 - Dublu Mixt | 2021/07/24 01:20 | Seo/Chae v Piek/Tabeling | L | 2-1 |
| Campionatul European - Dublu Mixt | 2021/04/30 08:00 | Piek/Tabeling v Lamsfuss/Herttrich | L | 0-2 |
| Campionatul European - Dublu Mixt | 2021/04/29 07:20 | Nohr/Magelund v Piek/Tabeling | W | 1-2 |
| Campionatul European - Dublu Mixt | 2021/04/28 08:20 | Ivancic/Polanc v Piek/Tabeling | W | 0-2 |
| Dutch Open - Dublu Mixt | 2021/10/14 08:30 | Birker/Hochmeir v Gnedt/Polc | W | 2-0 |
| Polish Int. - Dublu Mixt | 2021/09/25 08:00 | Wassink/Tirtosentono v Birker/Hochmeir | L | 2-0 |
| Ukraine Int. - Dublu Mixt | 2021/09/09 07:20 | Yap/Siow v Birker/Hochmeir | L | 2-0 |
| Ukraine Int. - Dublu Mixt | 2021/09/08 08:00 | Yakovlev/Tkach v Birker/Hochmeir | W | 1-2 |
| Spain International - Dublu Mixt | 2021/06/19 07:00 | Hemming/Pugh v Birker/Hochmeir | L | 2-0 |
| Spain International - Dublu Mixt | 2021/06/18 13:00 | Mueller/Stern v Birker/Hochmeir | W | 1-2 |
| Spain International - Dublu Mixt | 2021/06/18 07:45 | Leal/Lopez v Birker/Hochmeir | W | 0-2 |
| Austrian Open - Dublu Mixt | 2021/05/28 11:00 | Choong/Toh v Birker/Hochmeir | L | 2-1 |