| Spain Int MD | 2021/06/18 11:15 | Birker P / Stipsits D v Molares J / Perez J | W | 2-0 |
| Austrian Open - Doubles Hommes | 2021/05/28 15:00 | Birker P / Stipsits D v Matusz M / Trecki W | L | 1-2 |
| Slovenia Int. MD | 2021/05/22 10:00 | Birker P / Stipsits D v Boe/Kjaer | L | 0-2 |
| Slovenia Int. MD | 2021/05/21 15:20 | Birker P / Stipsits D v Ivancic/Krapez | W | 2-1 |
| Slovenia Int. MD | 2021/05/21 11:20 | Birker P / Stipsits D v Doder A / Tomic M | W | 2-0 |
| Slovenia Int. MD | 2021/05/20 16:40 | Birker P / Stipsits D v Feltes/Pauquet | W | 2-0 |
| Portuguese Int. MD | 2021/05/08 09:40 | Birker P / Stipsits D v Easton/Russ | L | 0-2 |
| Championnat d'Europe - Doubles Hommes | 2021/04/29 10:20 | Birker P / Stipsits D v Ivanov V / Sozonov I | L | 0-2 |
| Spain Int MD | 2021/06/18 11:30 | Man/Tee v Jaeger/Kjellberg | W | 2-0 |
| Open de Pologne - Doubles Hommes | 2021/03/28 08:40 | Chang/Chia v Man/Tee | W | 1-2 |
| Open de Pologne - Doubles Hommes | 2021/03/27 17:00 | Man/Tee v Cybulski R / Szydlowski P | W | 2-0 |
| Open de Pologne - Doubles Hommes | 2021/03/27 09:00 | Duijs G / van Der Aar W v Man/Tee | W | 0-2 |
| Open de Pologne - Doubles Hommes | 2021/03/26 17:20 | Man/Tee v Azman/Yap | W | 2-0 |
| Open de Pologne - Doubles Hommes | 2021/03/26 12:50 | Man/Tee v Hansson/Z-Bexell | W | 2-0 |