Stadium: Main Court (7) Round: 29 Ground: Clay
| ITF - M25 Grodzisk Mazowiecki - Dublu Masculin | 2021/08/07 12:45 | Hermans/Matuszewski v Beloborodko/Peliwo | 5-7,7-5,10-4 |
| ITF - M25 Grodzisk Mazowiecki - Dublu Masculin | 2021/08/03 13:45 | Hermans/Matuszewski v Galus/Grynkowski | 6-3,6-3 |
| ITF - M25 Grodzisk Mazowiecki - Dublu Masculin | 2021/08/08 09:00 | Klier Junior/Sakamoto v Dembek/Michalski | 6-3,5-7,10-8 |
| ITF - M25 Grodzisk Mazowiecki - Dublu Masculin | 2021/08/07 16:00 | Cias/Pavlasek v Klier Junior/Sakamoto | 4-6,6-0,5-10 |
| ITF - M25 Grodzisk Mazowiecki - Dublu Masculin | 2021/08/03 09:00 | Nazaruk/Rajski v Klier Junior/Sakamoto | 3-6,1-6 |