| 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 |
| Championnat d'Europe - Doubles Hommes | 2021/04/27 10:10 | Birker P / Stipsits D v Druzchenko I / Kolesnik O | W | 2-0 |
| Orleans Masters MD | 2021/03/24 17:45 | Birker P / Stipsits D v Hess D / Pistorius J | L | 0-2 |
| Open de Suisse - Doubles Hommes | 2021/03/03 09:35 | Birker P / Stipsits D v Popov/Popov | L | 0-2 |
| Euro Mixed Team Champs MD | 2020/12/12 17:00 | Birker P / Stipsits D v Antoska A / Horak J | W | 2-0 |
| Euro Mixed Team Champs MD | 2020/12/11 18:30 | Kweekel/Lecq v Birker P / Stipsits D | W | 1-2 |
| Slovenia Int. MD | 2021/05/20 17:20 | Brazda / Dostal v Doder A / Tomic M | W | 0-2 |
| Open de Slovaquie - Doubles Hommes | 2020/02/28 11:20 | Hung T W / Lu M C v Doder A / Tomic M | L | 2-0 |
| Open de Slovaquie - Doubles Hommes | 2020/02/27 18:25 | Doder A / Tomic M v Klancar/Lonzaric | W | 2-0 |
| Open de Slovaquie - Doubles Hommes | 2020/02/27 18:25 | Doder A / Tomic M v Klancar D / Lonzaric D | W | 2-0 |