Stadium: Court 1 Round: 26 Ground: Clay
| ITF M25 Prague MD | 2021/10/07 13:10 | Johnson/Paul v Horak/Siniakov | 6-7,6-4,10-8 |
| ITF M25 Pardubice MD | 2021/09/21 12:30 | Duda/Pavlasek v Horak/Siniakov | 6-3,6-3 |
| ITF M25 Ricany MD | 2021/08/31 10:30 | Horak/Siniakov v Kodat/Pavlasek | 4-6,5-7 |