Stadium: Court 9 Round: 26 Ground: Clay
| ITF M15 Zilina | 2021/09/01 09:20 | Wojciech Marek v Andrej Krajcik | 6-0,6-3 |
| Challenger Warsaw | 2021/08/22 09:00 | Wojciech Marek v Daniel Michalski | 6-7,1-6 |
| ITF M15 Lodz | 2021/08/20 08:00 | Yann Wojcik v Wojciech Marek | 7-6,6-3 |
| ITF M15 Lodz | 2021/08/19 07:55 | Wojciech Marek v Markus Eriksson | 6-4,7-5 |
| ITF M15 Lodz | 2021/08/18 11:25 | Wojciech Marek v Olaf Pieczkowski | 5-7,6-4,6-1 |
| ITF M15 Gdynia | 2021/08/12 08:00 | Alejo Lorenzo Lingua Lavallen v Wojciech Marek | 3-6,6-3,6-3 |
| ITF M15 Gdynia | 2021/08/10 14:30 | Wojciech Marek v Georgii Kravchenko | 6-4,6-2 |
| Challenger Poznan | 2021/07/25 11:00 | Joao Domingues v Wojciech Marek | 6-3,6-0 |
| ITF M15 Zilina | 2021/09/01 13:45 | Michal Novansky v Mariano Navone | 3-6,4-6 |
| ITF M15 Bratislava | 2021/08/27 08:00 | Mariano Navone v Pavel Nejedly | 4-6,3-6 |
| ITF M15 Bratislava | 2021/08/26 11:15 | Mariano Navone v Jakub Novak | 6-1,6-1 |
| ITF M15 Bratislava | 2021/08/25 10:20 | Mariano Navone v Andrej Krajcik | 6-2,6-0 |
| ITF M15 Bratislava | 2021/08/17 10:30 | David Pichler v Mariano Navone | 4-6,6-3,6-4 |
| ITF M15 Curtea de Arges | 2021/08/11 08:45 | Vlad Andrei Dancu v Mariano Navone | 6-4,6-4 |
| ITF M15 Novi Sad | 2021/08/07 09:00 | Mariano Navone v Francisco Comesana | 7-5,5-7,5-7 |
| ITF M15 Novi Sad | 2021/08/05 12:00 | Mariano Navone v Marsel Ilhan | 6-3,6-1 |