| 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 |
| Slovenia Int. - Dublu Mixt | 2021/05/21 10:00 | Birker/Hochmeir v Knudsen/Norrman | L | 0-2 |
| Polish Int. - Dublu Mixt - Calificari | 2021/09/23 09:00 | Niczyporuk/Plawecka v Gnedt/Polc | L | 2-0 |
| Austrian Open - Dublu Mixt | 2021/05/28 11:25 | Gnedt/Polc v Scheiel/Volkmann | L | 0-2 |
| Slovenia Int. - Dublu Mixt | 2021/05/20 08:40 | Choong/Toh v Gnedt/Polc | L | 2-0 |
| Bulgarian Int. - Dublu Mixt | 2020/10/02 11:40 | Tomic/Vitman v Gnedt/Polc | L | 2-0 |
| Italian Int. - Dublu Mixt - Calificari | 2019/12/12 13:30 | Gnedt/Polc v Sjoo/Z-Bexell | L | 0-2 |
| Scottish Open - Dublu Mixt | 2019/11/21 18:30 | Gnedt/Polc v Volker/Janssens | L | 0-2 |
| Slovenia Int. - Dublu Mixt | 2019/05/16 08:00 | Villeger/Bauer v Gnedt/Polc | L | 2-0 |
| Croatian International - Dublu Mixt | 2019/04/19 07:00 | Christensen/Syvertsen v Gnedt/Polc | W | 0-2 |