| EM - Herredouble | 2021/04/27 10:10 | Birker/Stipsits v Druzchenko/Kolesnik | W | 2-0 |
| Orleans Masters MD | 2021/03/24 17:45 | Birker/Stipsits v Hess/Pistorius | L | 0-2 |
| Swiss Open - Herredouble | 2021/03/03 09:35 | Birker/Stipsits v Popov/Popov | L | 0-2 |
| Euro Mixed Team Championships - Herredouble | 2020/12/12 17:00 | Birker/Stipsits v Antoska/Horak | W | 2-0 |
| Euro Mixed Team Championships - Herredouble | 2020/12/11 18:30 | Kweekel/Lecq v Birker/Stipsits | W | 1-2 |
| Euro Mixed Team Championships - Herredouble | 2020/12/10 18:15 | Kral/Louda v Birker/Stipsits | W | 1-2 |
| SaarLorLux Open MD | 2020/10/27 15:45 | Dunn/Hall v Birker/Stipsits | L | 2-0 |
| European Team Championships MD | 2020/02/12 19:30 | Birker/Stipsits v Smilowski/Szydlowski | L | 0-2 |
| Swiss Open - Herredouble | 2021/03/04 14:00 | Ivanov/Sozonov v Phuangphuapet/Viriyangkura | L | 1-2 |
| Swiss Open - Herredouble | 2021/03/03 15:05 | Ivanov/Sozonov v M.R/Kapila | W | 2-0 |
| European Team Championships MD | 2021/02/19 12:00 | Labar/Maio v Ivanov/Sozonov | W | 0-2 |
| European Team Championships MD | 2021/02/18 11:40 | Jille/Tabeling v Ivanov/Sozonov | W | 0-2 |
| European Team Championships MD | 2021/02/17 11:40 | Labar/Maio v Ivanov/Sozonov | W | 1-2 |
| European Team Championships MD | 2021/02/16 11:40 | Easton/van Leeuwen v Ivanov/Sozonov | W | 0-2 |
| World Tour Finals - Herredouble | 2021/01/29 04:00 | Ivanov/Sozonov v Choi/Seo | L | 1-2 |
| World Tour Finals - Herredouble | 2021/01/28 04:40 | Chia/Soh v Ivanov/Sozonov | W | 0-2 |