| Polish Int. XD Qual | 2021/09/23 09:40 | Heinke/Zimnol v Yakovlev/Tkach | W | 1-2 |
| Ukraine Int. XD | 2021/09/08 08:00 | Yakovlev/Tkach v Birker P / Hochmeir K | L | 1-2 |
| Latvia Int. XD | 2021/08/27 10:00 | Smilowski / Adamek v Yakovlev/Tkach | L | 2-0 |
| Lithuanian Int. - Doubles Mixtes | 2021/06/12 14:00 | Yakovlev/Tkach v Ducrot/Cloteaux-Foucault | L | 0-2 |
| Lithuanian Int. - Doubles Mixtes | 2021/06/12 06:20 | Perez/Leal v Yakovlev/Tkach | W | 1-2 |
| Polish Int. XD Qual | 2021/09/23 09:00 | Niczyporuk/Plawecka v Gnedt R / Polc U | W | 2-0 |